nas.edu website information.
nas.edu domain name is registered by .EDU top-level domain registry. See the other sites registred in .EDU domain zone.
Following name servers are specified for nas.edu domain:
- bona.nas.edu
- berkshire.nas.edu
- bighorn.nas.edu
- bonaor.nas.edu
- bonairl.nas.edu
- rushmore.nas.edu
and probably website nas.edu is hosted by OMNITURE - Adobe Systems Inc., US web hosting company. Check the complete list of other most popular websites hosted by OMNITURE - Adobe Systems Inc., US hosting company.
According to Alexa traffic rank the highest website nas.edu position was 15003 (in the world). The lowest Alexa rank position was 912357. Now website nas.edu ranked in Alexa database as number 16085 (in the world).
Website nas.edu Desktop speed measurement score (46/100) is better than the results of 19.93% of other sites shows that the page desktop performance can be improved.
nas.edu Mobile usability score (63/100) is better than the results of 9.16% of other sites and shows that the page mobile usability is poor and can be improved.
Mobile speed measurement score of nas.edu (43/100) is better than the results of 22.8% of other sites and shows that the landing page performance on mobile devices is poor and can be improved.
Weekly Rank Report
| Date | Rank | Change |
|---|---|---|
| Nov-20-2024 | 16,085 | -3 |
| Nov-19-2024 | 16,082 | -8 |
| Nov-18-2024 | 16,074 | -31 |
| Nov-17-2024 | 16,043 | -83 |
| Nov-16-2024 | 15,960 | 78 |
| Nov-15-2024 | 16,038 | -143 |
| Nov-14-2024 | 15,895 | 154 |
Advertisement
nas.edu Rank History
Alexa can identify the popularity of a website as well as its competitors. It is important for website owners and bloggers to know their Alexa ranking because it shows how many visitors have viewed their web page. It gives them a clear idea of how popular their website is on the internet and the ranking of their competitors.
nas.edu whois
WHOIS is a query and response protocol that is widely used for querying databases that store the registered users or assignees of an Internet resource, such as a domain name, an IP address block, or an autonomous system, but is also used for a wider range of other information.
This Registry database contains ONLY .EDU domains.
The data in the EDUCAUSE Whois database is provided
by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.
The EDUCAUSE Whois database is authoritative for the
.EDU domain.
A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.edu
By submitting a Whois query, you agree that this information
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail. The use of electronic processes to
harvest information from this server is generally prohibited
except as reasonably necessary to register or modify .edu
domain names.
-------------------------------------------------------------
Domain Name: NAS.EDU
Registrant:
National Academy of Sciences
500 5th Street, N.W.
Washington, DC 20001
USA
Administrative Contact:
System Administration
National Academies
500 5th Street, N.W.
Washington, DC 20001
USA
+1.2023343581
sysadmin@nas.edu
Technical Contact:
DNS-Technical- Contact
National Academies
500 5th Street, N.W.
Washington, DC 20001
USA
+1.2023342713
DNS-technical-contact@nas.edu
Name Servers:
A1-44.AKAM.NET
A5-65.AKAM.NET
A11-64.AKAM.NET
A6-66.AKAM.NET
A16-67.AKAM.NET
A28-67.AKAM.NET
Domain record activated: 07-Dec-1990
Domain record last updated: 18-Sep-2024
Domain expires: 31-Jul-2025
nas.edu server information
nas.edu desktop page speed rank
Last tested: 2017-05-27
Desktop Speed
Bad
46/100
nas.edu Desktop Speed Test Quick Summary
priority - 69 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 673.4KiB (71% reduction).
Compressing https://www.nap.edu/cover/24625/200 could save 97.7KiB (82% reduction).
Compressing https://www.nap.edu/cover/24623/200 could save 89.9KiB (83% reduction).
Compressing https://www.nap.edu/cover/11876/200 could save 74.4KiB (84% reduction).
Compressing https://www.nap.edu/cover/12825/200 could save 48KiB (81% reduction).
Compressing and resizing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg could save 33.7KiB (92% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg could save 31.5KiB (92% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg could save 30.1KiB (45% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg could save 28KiB (94% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg could save 26.9KiB (93% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg could save 20KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg could save 18KiB (47% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg could save 17.6KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg could save 12.9KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg could save 11.9KiB (31% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg could save 10.2KiB (56% reduction).
Compressing and resizing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg could save 10.1KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg could save 9.4KiB (59% reduction).
Compressing https://www.nap.edu/cover/5787/200 could save 8.9KiB (42% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg could save 7.9KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg could save 7.2KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg could save 7KiB (73% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg could save 6.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg could save 5.8KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg could save 5.5KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg could save 5.2KiB (64% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg could save 4.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg could save 4.6KiB (77% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg could save 4.5KiB (65% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg could save 4.1KiB (68% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg could save 4KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg could save 3.1KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg could save 3KiB (78% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg could save 2.9KiB (81% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg could save 2.8KiB (87% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg could save 2.7KiB (82% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg could save 2.6KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg could save 2.6KiB (85% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg could save 2.6KiB (82% reduction).
Compressing https://www.nap.edu/images/sprites_cp14.png could save 1.3KiB (43% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png could save 1.2KiB (14% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif could save 730B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif could save 726B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif could save 561B (75% reduction).
Compressing https://www.nap.edu/cover/24623/200 could save 89.9KiB (83% reduction).
Compressing https://www.nap.edu/cover/11876/200 could save 74.4KiB (84% reduction).
Compressing https://www.nap.edu/cover/12825/200 could save 48KiB (81% reduction).
Compressing and resizing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg could save 33.7KiB (92% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg could save 31.5KiB (92% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg could save 30.1KiB (45% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg could save 28KiB (94% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg could save 26.9KiB (93% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg could save 20KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg could save 18KiB (47% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg could save 17.6KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg could save 12.9KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg could save 11.9KiB (31% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg could save 10.2KiB (56% reduction).
Compressing and resizing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg could save 10.1KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg could save 9.4KiB (59% reduction).
Compressing https://www.nap.edu/cover/5787/200 could save 8.9KiB (42% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg could save 7.9KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg could save 7.2KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg could save 7KiB (73% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg could save 6.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg could save 5.8KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg could save 5.5KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg could save 5.2KiB (64% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg could save 4.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg could save 4.6KiB (77% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg could save 4.5KiB (65% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg could save 4.1KiB (68% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg could save 4KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg could save 3.1KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg could save 3KiB (78% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg could save 2.9KiB (81% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg could save 2.8KiB (87% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg could save 2.7KiB (82% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg could save 2.6KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg could save 2.6KiB (85% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg could save 2.6KiB (82% reduction).
Compressing https://www.nap.edu/images/sprites_cp14.png could save 1.3KiB (43% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png could save 1.2KiB (14% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif could save 730B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif could save 726B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif could save 561B (75% reduction).
priority - 28 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178437.gif (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…s/na_top_nav_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…/na_top_nav_repeat.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg (expiration not specified)
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigation.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js (expiration not specified)
https://www.nap.edu/images/sprites_cp14.png (expiration not specified)
https://www.nap.edu/images/widget-nasem-hdr2.png (expiration not specified)
https://www.nap.edu/widget/assets/widget.css (expiration not specified)
http://www.pnas.org/content/114/21.cover.gif (2 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-WSZZVS (15 minutes)
http://dwc.nas.edu/ga/onpi.js (2 hours)
http://www.google-analytics.com/analytics.js (2 hours)
http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178437.gif (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…s/na_top_nav_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…/na_top_nav_repeat.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg (expiration not specified)
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigation.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js (expiration not specified)
https://www.nap.edu/images/sprites_cp14.png (expiration not specified)
https://www.nap.edu/images/widget-nasem-hdr2.png (expiration not specified)
https://www.nap.edu/widget/assets/widget.css (expiration not specified)
http://www.pnas.org/content/114/21.cover.gif (2 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-WSZZVS (15 minutes)
http://dwc.nas.edu/ga/onpi.js (2 hours)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 20 Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 198.4KiB (74% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js could save 58.1KiB (64% reduction).
Compressing http://nas.edu/ could save 37.4KiB (79% reduction).
Compressing https://www.nap.edu/widget/nasem-home could save 35.8KiB (79% reduction).
Compressing http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js could save 21.1KiB (79% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css could save 11.2KiB (79% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 10.1KiB (83% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigation.js could save 9KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 7.2KiB (83% reduction).
Compressing https://www.nap.edu/widget/assets/widget.css could save 4.2KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 2.9KiB (63% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js could save 1.3KiB (57% reduction).
Compressing http://nas.edu/ could save 37.4KiB (79% reduction).
Compressing https://www.nap.edu/widget/nasem-home could save 35.8KiB (79% reduction).
Compressing http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js could save 21.1KiB (79% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css could save 11.2KiB (79% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 10.1KiB (83% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigation.js could save 9KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 7.2KiB (83% reduction).
Compressing https://www.nap.edu/widget/assets/widget.css could save 4.2KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 2.9KiB (63% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js could save 1.3KiB (57% reduction).
priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js
http://nas.edu/site_assets/websites/na/sitenavigation.js
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js
http://nas.edu/site_assets/websites/na/sitenavigation.js
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js
Optimize CSS Delivery of the following:
http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css
http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css
http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css
priority - 2 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 19.5KiB (36% reduction).
Minifying http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js could save 11.8KiB (45% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 4.2KiB (35% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigation.js could save 1.8KiB (17% reduction).
Minifying http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 1.7KiB (38% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 4.2KiB (35% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigation.js could save 1.8KiB (17% reduction).
Minifying http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 1.7KiB (38% reduction).
priority - 1 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 11.4KiB (25% reduction).
Minifying http://nas.edu/ could save 11.4KiB (25% reduction).
priority - 1 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 5.3KiB (19% reduction).
Minifying http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css could save 3.2KiB (23% reduction).
Minifying https://www.nap.edu/widget/assets/widget.css could save 1.1KiB (19% reduction).
Minifying http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 1KiB (12% reduction).
Minifying https://www.nap.edu/widget/assets/widget.css could save 1.1KiB (19% reduction).
Minifying http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 1KiB (12% reduction).
nas.edu Desktop Resources
| Total Resources | 75 |
| Number of Hosts | 13 |
| Static Resources | 66 |
| JavaScript Resources | 15 |
| CSS Resources | 4 |
nas.edu Desktop Resource Breakdown
nas.edu mobile page speed rank
Last tested: 2017-05-27
Mobile Speed
Bad
43/100
nas.edu Mobile Speed Test Quick Summary
priority - 48 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 471.5KiB (60% reduction).
Compressing https://www.nap.edu/cover/23573/200 could save 85.4KiB (81% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg could save 31.5KiB (92% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg could save 30.1KiB (45% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg could save 28KiB (94% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg could save 26.9KiB (93% reduction).
Compressing https://www.nap.edu/cover/23528/200 could save 25.2KiB (53% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg could save 20KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg could save 18KiB (47% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg could save 17.6KiB (60% reduction).
Compressing https://www.nap.edu/cover/12956/200 could save 15.7KiB (48% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg could save 15.3KiB (43% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg could save 12.9KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg could save 11.9KiB (31% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg could save 10.2KiB (56% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg could save 9.4KiB (59% reduction).
Compressing https://www.nap.edu/cover/13165/200 could save 8.8KiB (34% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg could save 7.9KiB (72% reduction).
Compressing https://www.nap.edu/cover/23617/200 could save 7.3KiB (40% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg could save 7.2KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg could save 7KiB (73% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg could save 6.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg could save 5.8KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg could save 5.5KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg could save 5.2KiB (64% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg could save 4.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg could save 4.6KiB (77% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg could save 4.5KiB (65% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg could save 4.1KiB (68% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg could save 4KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg could save 3.1KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg could save 3KiB (25% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg could save 3KiB (78% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg could save 2.9KiB (81% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg could save 2.8KiB (87% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg could save 2.7KiB (82% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg could save 2.6KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg could save 2.6KiB (85% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg could save 2.6KiB (82% reduction).
Compressing https://www.nap.edu/images/sprites_cp14.png could save 1.3KiB (43% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png could save 1.2KiB (14% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif could save 730B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif could save 726B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif could save 561B (75% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg could save 31.5KiB (92% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg could save 30.1KiB (45% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg could save 28KiB (94% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg could save 26.9KiB (93% reduction).
Compressing https://www.nap.edu/cover/23528/200 could save 25.2KiB (53% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg could save 20KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg could save 18KiB (47% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg could save 17.6KiB (60% reduction).
Compressing https://www.nap.edu/cover/12956/200 could save 15.7KiB (48% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg could save 15.3KiB (43% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg could save 12.9KiB (50% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg could save 11.9KiB (31% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg could save 10.2KiB (56% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg could save 9.4KiB (59% reduction).
Compressing https://www.nap.edu/cover/13165/200 could save 8.8KiB (34% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg could save 7.9KiB (72% reduction).
Compressing https://www.nap.edu/cover/23617/200 could save 7.3KiB (40% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg could save 7.2KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg could save 7KiB (73% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg could save 6.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg could save 5.8KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg could save 5.5KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg could save 5.2KiB (64% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg could save 4.7KiB (69% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg could save 4.6KiB (77% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg could save 4.5KiB (65% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg could save 4.1KiB (68% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg could save 4KiB (67% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg could save 3.1KiB (60% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg could save 3KiB (25% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg could save 3KiB (78% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg could save 2.9KiB (81% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg could save 2.8KiB (87% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg could save 2.7KiB (82% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg could save 2.6KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg could save 2.6KiB (85% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg could save 2.6KiB (82% reduction).
Compressing https://www.nap.edu/images/sprites_cp14.png could save 1.3KiB (43% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png could save 1.2KiB (14% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif could save 730B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif could save 726B (85% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif could save 561B (75% reduction).
priority - 42 Leverage browser caching
Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network.
Leverage browser caching for the following cacheable resources:
http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178437.gif (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…s/na_top_nav_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…/na_top_nav_repeat.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg (expiration not specified)
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigation.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js (expiration not specified)
https://www.nap.edu/images/sprites_cp14.png (expiration not specified)
https://www.nap.edu/images/widget-nasem-hdr2.png (expiration not specified)
https://www.nap.edu/widget/assets/widget.css (expiration not specified)
http://www.pnas.org/content/114/21.cover.gif (2 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-WSZZVS (15 minutes)
http://dwc.nas.edu/ga/onpi.js (2 hours)
http://www.google-analytics.com/analytics.js (2 hours)
http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052423.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052424.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_052425.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053166.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053174.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053175.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053182.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053212.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053226.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053389.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053459.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053516.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_053533.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_062695.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_072670.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_167988.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_172612.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_173940.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_174785.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_177706.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178437.gif (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_178977.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179125.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179152.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179220.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179256.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…graphics/na_179287.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…/na_facebook._icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…_nasem_logo_footer.png (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…s/na_rss_news_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/nasite/documents…cs/na_twitter_icon.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062679.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_062696.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…graphics/na_datebg.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…phics/na_graybarbg.jpg (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_news_left_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…ics/na_right_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…s/na_top_nav_arrow.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…/na_top_nav_repeat.gif (expiration not specified)
http://nas.edu/site_assets/groups/system/documents…na_topnav_hover_3a.jpg (expiration not specified)
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigation.js (expiration not specified)
http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js (expiration not specified)
https://www.nap.edu/images/sprites_cp14.png (expiration not specified)
https://www.nap.edu/images/widget-nasem-hdr2.png (expiration not specified)
https://www.nap.edu/widget/assets/widget.css (expiration not specified)
http://www.pnas.org/content/114/21.cover.gif (2 minutes)
https://static.doubleclick.net/instream/ad_status.js (15 minutes)
https://www.googletagmanager.com/gtm.js?id=GTM-WSZZVS (15 minutes)
http://dwc.nas.edu/ga/onpi.js (2 hours)
http://www.google-analytics.com/analytics.js (2 hours)
priority - 32 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 6 blocking script resources and 2 blocking CSS resources. This causes a delay in rendering your page.
None of the above-the-fold content on your page could be rendered without waiting for the following resources to load. Try to defer or asynchronously load blocking resources, or inline the critical portions of those resources directly in the HTML.
Remove render-blocking JavaScript:
http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js
http://nas.edu/site_assets/websites/na/sitenavigation.js
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js
http://nas.edu/site_assets/websites/na/sitenavigation.js
http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js
http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js
http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js
http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js
Optimize CSS Delivery of the following:
http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css
http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css
http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css
priority - 20 Enable compression
Compressing resources with gzip or deflate can reduce the number of bytes sent over the network.
Enable compression for the following resources to reduce their transfer size by 196KiB (74% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…t/na_nax_jquery_min.js could save 58.1KiB (64% reduction).
Compressing http://nas.edu/ could save 37.4KiB (79% reduction).
Compressing https://www.nap.edu/widget/nasem-home could save 33.4KiB (79% reduction).
Compressing http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js could save 21.1KiB (79% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css could save 11.2KiB (79% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 10.1KiB (83% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigation.js could save 9KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 7.2KiB (83% reduction).
Compressing https://www.nap.edu/widget/assets/widget.css could save 4.2KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 2.9KiB (63% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js could save 1.3KiB (57% reduction).
Compressing http://nas.edu/ could save 37.4KiB (79% reduction).
Compressing https://www.nap.edu/widget/nasem-home could save 33.4KiB (79% reduction).
Compressing http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js could save 21.1KiB (79% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css could save 11.2KiB (79% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 10.1KiB (83% reduction).
Compressing http://nas.edu/site_assets/websites/na/sitenavigation.js could save 9KiB (83% reduction).
Compressing http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 7.2KiB (83% reduction).
Compressing https://www.nap.edu/widget/assets/widget.css could save 4.2KiB (72% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 2.9KiB (63% reduction).
Compressing http://nas.edu/site_assets/groups/system/documents…na_js_news_carousel.js could save 1.3KiB (57% reduction).
priority - 2 Minify JavaScript
Compacting JavaScript code can save many bytes of data and speed up downloading, parsing, and execution time.
Minify JavaScript for the following resources to reduce their size by 19.5KiB (36% reduction).
Minifying http://nas.edu/site_assets/resources/sitestudio/ssajax/ssajax.js could save 11.8KiB (45% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 4.2KiB (35% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigation.js could save 1.8KiB (17% reduction).
Minifying http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 1.7KiB (38% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigationfunctions.js could save 4.2KiB (35% reduction).
Minifying http://nas.edu/site_assets/websites/na/sitenavigation.js could save 1.8KiB (17% reduction).
Minifying http://nas.edu/site_assets/groups/system/documents…et/na_js_menu_hover.js could save 1.7KiB (38% reduction).
priority - 1 Minify HTML
Compacting HTML code, including any inline JavaScript and CSS contained in it, can save many bytes of data and speed up download and parse times.
Minify HTML for the following resources to reduce their size by 11.4KiB (25% reduction).
Minifying http://nas.edu/ could save 11.4KiB (25% reduction).
priority - 1 Minify CSS
Compacting CSS code can save many bytes of data and speed up download and parse times.
Minify CSS for the following resources to reduce their size by 5.3KiB (19% reduction).
Minifying http://nas.edu/site_assets/groups/nasite/documents…et/na_mainpage_css.css could save 3.2KiB (23% reduction).
Minifying https://www.nap.edu/widget/assets/widget.css could save 1.1KiB (19% reduction).
Minifying http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 1KiB (12% reduction).
Minifying https://www.nap.edu/widget/assets/widget.css could save 1.1KiB (19% reduction).
Minifying http://nas.edu/site_assets/groups/nasite/documents…et/na_dropdown_css.css could save 1KiB (12% reduction).
nas.edu Mobile Resources
| Total Resources | 76 |
| Number of Hosts | 14 |
| Static Resources | 67 |
| JavaScript Resources | 15 |
| CSS Resources | 4 |
nas.edu Mobile Resource Breakdown
nas.edu mobile page usability
Last tested: 2017-05-27
Mobile Usability
Bad
63/100
nas.edu Mobile Usability Test Quick Summary
priority - 40 Use legible font sizes
The following text on your page renders in a way that may be difficult for some of your visitors to read. Use legible font sizes to provide a better user experience.
The following text fragments have a small font size. Increase the font size to make them more legible.
Current Operating Status and 1 others render only 5 pixels tall (12 CSS pixels).| renders only 4 pixels tall (10 CSS pixels).Home renders only 5 pixels tall (12 CSS pixels).Events & Activities and 3 others render only 5 pixels tall (12 CSS pixels).May 27, 2017 renders only 5 pixels tall (13 CSS pixels).More News renders only 4 pixels tall (11 CSS pixels).May 17 - Polic…new Academies and 1 others render only 5 pixels tall (12 CSS pixels).report renders only 5 pixels tall (12 CSS pixels).NEW REPORT renders only 4 pixels tall (10 CSS pixels).Actions Needed…trengthen U.S. and 1 others render only 5 pixels tall (13 CSS pixels).NEW REPORT and 2 others render only 4 pixels tall (10 CSS pixels).Assistive Tech…h Disabilities and 2 others render only 5 pixels tall (13 CSS pixels).2017 Global Gr…llenges Summit and 2 others render only 5 pixels tall (12 CSS pixels).Your browser d…ats available. renders only 5 pixels tall (14 CSS pixels).Click here to…t HTML5 video. renders only 5 pixels tall (14 CSS pixels)., jointly orga…shington, D.C. and 1 others render only 5 pixels tall (12 CSS pixels).Global Grand Challenges Summit renders only 5 pixels tall (12 CSS pixels).Read about rec…edicine in the and 4 others render only 5 pixels tall (12 CSS pixels).series of articles and videos and 2 others render only 5 pixels tall (12 CSS pixels).In Focus renders only 5 pixels tall (12 CSS pixels).for state-of-t…onal programs. and 1 others render only 5 pixels tall (12 CSS pixels).Art, Design an…roup Summaries renders only 5 pixels tall (13 CSS pixels).Download and 1 others render only 4 pixels tall (11 CSS pixels).The National A…, and Medicine and 1 others render only 5 pixels tall (12 CSS pixels).Browse the mos…ditions of the renders only 5 pixels tall (12 CSS pixels).Proceedings of…my of Sciences renders only 5 pixels tall (12 CSS pixels).Follow Us: renders only 4 pixels tall (10 CSS pixels).| renders only 4 pixels tall (10 CSS pixels).E-Newsletters renders only 5 pixels tall (12 CSS pixels).500 Fifth Stre…. 202.334.2000 and 3 others render only 5 pixels tall (12 CSS pixels).Privacy Statement and 3 others render only 5 pixels tall (12 CSS pixels).Copyright © 20…ights reserved renders only 4 pixels tall (10 CSS pixels).. renders only 4 pixels tall (10 CSS pixels).priority - 10 Configure the viewport
Your page does not have a viewport specified. This causes mobile devices to render your page as it would appear on a desktop browser, scaling it down to fit on a mobile screen. Configure a viewport to allow your page to render properly on all devices.
Configure a viewport for this page.
priority - 6 Size tap targets appropriately
Some of the links/buttons on your webpage may be too small for a user to easily tap on a touchscreen. Consider making these tap targets larger to provide a better user experience.
The following tap targets are close to other nearby tap targets and may need additional spacing around them.
The tap target
<input type="text" name="q"> is close to 2 other tap targets.The tap target
<input type="image" name="sa"> is close to 2 other tap targets.The tap target
<a href="http://www.nat…act/index.html">Contact Us</a> and 1 others are close to other tap targets.The tap target
<a id="divisions" href="./index.html" class="top_link">Home</a> and 3 others are close to other tap targets.The tap target
<a id="divisions" href="./index.html" class="top_link">Home</a> is close to 2 other tap targets.The tap target
<a href="./newsroom/index.html" class="leftlink">More News</a> is close to 2 other tap targets.The tap target
<li class="active">NEW REPORT…demies report.</li> is close to 2 other tap targets.The tap target
<li class="active">NEW REPORT…demies report.</li> and 3 others are close to other tap targets.The tap target
<li>NEW REPORT…global health.</li> and 2 others are close to other tap targets.The tap target
<a href="https://www.yo…?v=-h8BpXGUQs0" class="ytp-watermark…ix-sessionlink"></a> is close to 2 other tap targets.The tap target
<a href="http://www.nap.edu"></a> is close to 3 other tap targets.The tap target
<a href="https://www.na…ent=position 1" class="book-title">Art, Design an…roup Summaries</a> and 1 others are close to other tap targets.The tap target
<a href="http://www.pna…ontent/current">Proceedings of…my of Sciences</a> is close to 2 other tap targets.The tap target
<a href="./rss/index.html"></a> and 2 others are close to other tap targets.The tap target
<a href="./legal/privacy/index.html">Privacy Statement</a> and 3 others are close to other tap targets.The tap target
<a href="./legal/index.html">Copyright © 20…ights reserved</a> is close to 1 other tap targets.priority - 4 Size content to viewport
The page content is too wide for the viewport, forcing the user to scroll horizontally. Size the page content to the viewport to provide a better user experience.
The page content is 1,006 CSS pixels wide, but the viewport is only 980 CSS pixels wide. The following elements fall outside the viewport:
The element
The element
The element
The element
The element
The element
The element
The element
The element
The element
The element
<b>May 27, 2017</b> falls outside the viewport.The element
<img src="./site_assets/…/na_053533.jpg"> falls outside the viewport.The element
<iframe src="http://www.nap…get/nasem-home"> falls outside the viewport.The element
<a href="http://www.pna…ontent/current">Proceedings of…my of Sciences</a> falls outside the viewport.The element
<img src="./site_assets/…/na_053226.jpg"> falls outside the viewport.The element
<div></div> falls outside the viewport.The element
<div></div> falls outside the viewport.The element
<div></div> falls outside the viewport.The element
<li></li> falls outside the viewport.The element
<img src="./site_assets/…ogo_footer.png"> falls outside the viewport.The element
<div class="copyright">Copyright © 20…ghts reserved.</div> falls outside the viewport.nas.edu similar domains
Similar domains:
www.nas.com
www.nas.net
www.nas.org
www.nas.info
www.nas.biz
www.nas.us
www.nas.mobi
www.as.edu
www.nas.edu
www.bas.edu
www.nbas.edu
www.bnas.edu
www.has.edu
www.nhas.edu
www.hnas.edu
www.jas.edu
www.njas.edu
www.jnas.edu
www.mas.edu
www.nmas.edu
www.mnas.edu
www.ns.edu
www.nqs.edu
www.naqs.edu
www.nqas.edu
www.nws.edu
www.naws.edu
www.nwas.edu
www.nss.edu
www.nass.edu
www.nsas.edu
www.nzs.edu
www.nazs.edu
www.nzas.edu
www.na.edu
www.naw.edu
www.nasw.edu
www.nae.edu
www.nase.edu
www.naes.edu
www.nad.edu
www.nasd.edu
www.nads.edu
www.naz.edu
www.nasz.edu
www.nax.edu
www.nasx.edu
www.naxs.edu
www.naa.edu
www.nasa.edu
www.naas.edu
www.nas.net
www.nas.org
www.nas.info
www.nas.biz
www.nas.us
www.nas.mobi
www.as.edu
www.nas.edu
www.bas.edu
www.nbas.edu
www.bnas.edu
www.has.edu
www.nhas.edu
www.hnas.edu
www.jas.edu
www.njas.edu
www.jnas.edu
www.mas.edu
www.nmas.edu
www.mnas.edu
www.ns.edu
www.nqs.edu
www.naqs.edu
www.nqas.edu
www.nws.edu
www.naws.edu
www.nwas.edu
www.nss.edu
www.nass.edu
www.nsas.edu
www.nzs.edu
www.nazs.edu
www.nzas.edu
www.na.edu
www.naw.edu
www.nasw.edu
www.nae.edu
www.nase.edu
www.naes.edu
www.nad.edu
www.nasd.edu
www.nads.edu
www.naz.edu
www.nasz.edu
www.nax.edu
www.nasx.edu
www.naxs.edu
www.naa.edu
www.nasa.edu
www.naas.edu
nas.edu Ping
Ping is a networking utility tool to test if a particular host is reachable. It is a diagnostic that checks reachability of a host on an Internet Protocol (IP) network. In a computer network, a ping test is a way of sending messages from one host to another. Aside from checking if the host is connected to a network, ping also gives indicators of the reliability and general speed of the connection.
nas.edu TRACEROUTE
Traceroute is a network diagnostic tool used to track the pathway taken by a packet on an IP network from source to destination. Traceroute also records the time taken for each hop the packet makes during its route to the destination. Traceroute uses ICMP (Internet Control Message Protocol) echo packets with variable time to live values. The response time of each hop is calculated. To guarantee accuracy, each hop is queried multiple times (usually three times) to better measure the response of that particular hop.