vosviewer.com website information.
vosviewer.com domain name is registered by .COM top-level domain registry. See the other sites registred in .COM domain zone.
Following name servers are specified for vosviewer.com domain:
- violet.leidenuniv.nl
- indigo.leidenuniv.nl
and probably website vosviewer.com is hosted by AMAZON-AES - Amazon.com, Inc., US web hosting company. Check the complete list of other most popular websites hosted by AMAZON-AES - Amazon.com, Inc., US hosting company.
According to Alexa traffic rank the highest website vosviewer.com position was 8032 (in the world). The lowest Alexa rank position was 999421. Now website vosviewer.com ranked in Alexa database as number 296574 (in the world).
Website vosviewer.com Desktop speed measurement score (40/100) is better than the results of 14.88% of other sites shows that the page desktop performance can be improved.
vosviewer.com Mobile usability score (100/100) is better than the results of 100% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of vosviewer.com (27/100) is better than the results of 7.94% 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-18-2024 | 296,574 | -3,187 |
| Nov-17-2024 | 293,387 | 852 |
| Nov-16-2024 | 294,239 | -1,277 |
| Nov-15-2024 | 292,962 | 1,349 |
| Nov-14-2024 | 294,311 | -8,816 |
| Nov-13-2024 | 285,495 | 0 |
| Nov-12-2024 | 285,495 | 0 |
Advertisement
vosviewer.com 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.
vosviewer.com 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.
Domain Name: VOSVIEWER.COM
Registry Domain ID: 1561229408_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.rrpproxy.net
Registrar URL: http://www.key-systems.net
Updated Date: 2022-07-04T07:16:49Z
Creation Date: 2009-07-03T14:50:06Z
Registry Expiry Date: 2023-07-03T14:50:06Z
Registrar: Key-Systems GmbH
Registrar IANA ID: 269
Registrar Abuse Contact Email: abuse@key-systems.net
Registrar Abuse Contact Phone: +49.68949396850
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: EDNS5.ULTRADNS.COM
Name Server: EDNS5.ULTRADNS.ORG
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2022-09-06T16:02:28Z
vosviewer.com server information
vosviewer.com desktop page speed rank
Last tested: 2020-01-03
Desktop Speed
Bad
40/100
vosviewer.com Desktop Speed Test Quick Summary
priority - 123 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.2MiB (55% reduction).
Compressing https://www.vosviewer.com/media/images/content/f8c…c1f2591ccd889__278.png could save 148.7KiB (78% reduction).
Compressing https://www.vosviewer.com/media/images/content/b61…74fb257b16e4e__278.png could save 141.8KiB (75% reduction).
Compressing https://www.vosviewer.com/media/images/content/08a…cedf5df544371__278.png could save 141.1KiB (74% reduction).
Compressing https://www.vosviewer.com/media/images/content/ea3…65ac581592983__278.png could save 140.8KiB (74% reduction).
Compressing https://www.vosviewer.com/media/images/content/330…d9a3a8554bece__278.png could save 136.7KiB (72% reduction).
Compressing https://www.vosviewer.com/media/images/content/189…a4c4fea7db925__278.png could save 133.3KiB (70% reduction).
Compressing https://www.vosviewer.com/media/images/content/a85…29d0ecff44b58__278.png could save 122.9KiB (65% reduction).
Compressing https://www.vosviewer.com/media/images/content/1c6…e75e4957918d3__200.png could save 81.9KiB (79% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/9fb…5d9346b5f41a8a6a9f.png could save 40.3KiB (21% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/04f…a04ade04facfbb7ed2.png could save 31.4KiB (18% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/e01…2e9ff5cee0f75a3700.png could save 28KiB (17% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/98a…7d2aa747262f2da2c8.png could save 27.9KiB (19% reduction).
Compressing https://www.vosviewer.com/media/images/content/7ae…d52b58621dc6f__200.jpg could save 19.3KiB (71% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/gallery_next.png could save 2.7KiB (90% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/gallery_prev.png could save 2.7KiB (91% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/launchbutton.png could save 2.5KiB (76% reduction).
Compressing https://www.vosviewer.com/media/images/style/socials/socials.png could save 1.9KiB (12% reduction).
Compressing https://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png could save 1,020B (11% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/gallery_play.png could save 200B (33% reduction).
Compressing https://www.vosviewer.com/media/images/content/b61…74fb257b16e4e__278.png could save 141.8KiB (75% reduction).
Compressing https://www.vosviewer.com/media/images/content/08a…cedf5df544371__278.png could save 141.1KiB (74% reduction).
Compressing https://www.vosviewer.com/media/images/content/ea3…65ac581592983__278.png could save 140.8KiB (74% reduction).
Compressing https://www.vosviewer.com/media/images/content/330…d9a3a8554bece__278.png could save 136.7KiB (72% reduction).
Compressing https://www.vosviewer.com/media/images/content/189…a4c4fea7db925__278.png could save 133.3KiB (70% reduction).
Compressing https://www.vosviewer.com/media/images/content/a85…29d0ecff44b58__278.png could save 122.9KiB (65% reduction).
Compressing https://www.vosviewer.com/media/images/content/1c6…e75e4957918d3__200.png could save 81.9KiB (79% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/9fb…5d9346b5f41a8a6a9f.png could save 40.3KiB (21% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/04f…a04ade04facfbb7ed2.png could save 31.4KiB (18% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/e01…2e9ff5cee0f75a3700.png could save 28KiB (17% reduction).
Compressing https://www.vosviewer.com/media/images/gallery/98a…7d2aa747262f2da2c8.png could save 27.9KiB (19% reduction).
Compressing https://www.vosviewer.com/media/images/content/7ae…d52b58621dc6f__200.jpg could save 19.3KiB (71% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/gallery_next.png could save 2.7KiB (90% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/gallery_prev.png could save 2.7KiB (91% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/launchbutton.png could save 2.5KiB (76% reduction).
Compressing https://www.vosviewer.com/media/images/style/socials/socials.png could save 1.9KiB (12% reduction).
Compressing https://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png could save 1,020B (11% reduction).
Compressing https://www.vosviewer.com/media/images/style/ui/gallery_play.png could save 200B (33% reduction).
priority - 19 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:
https://ws.sharethis.com/button/css/buttons-secure.css (expiration not specified)
https://www.vosviewer.com/media/images/content/08a…cedf5df544371__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/189…a4c4fea7db925__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/1c6…e75e4957918d3__200.png (expiration not specified)
https://www.vosviewer.com/media/images/content/330…d9a3a8554bece__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/7ae…d52b58621dc6f__200.jpg (expiration not specified)
https://www.vosviewer.com/media/images/content/a85…29d0ecff44b58__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/b61…74fb257b16e4e__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/ea3…65ac581592983__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/f8c…c1f2591ccd889__278.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/04f…a04ade04facfbb7ed2.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/823…7d4d9231def60f7a14.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/98a…7d2aa747262f2da2c8.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/9fb…5d9346b5f41a8a6a9f.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/e01…2e9ff5cee0f75a3700.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos/cwts_logo_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos…ogo_complete_white.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos…ogo_complete_white.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos…er_logo_mini_white.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…_level1_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…_background_active.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…vel1_mp_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…enu_level1_pointer.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/mainmenu_shader.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…vel1_mp_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/socials/socials.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_next.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_play.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_prev.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_sprite.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/launchbutton.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/preload.gif (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/shadow_popup.png (expiration not specified)
https://buttons-config.sharethis.com/js/5def70c7ee37bc0019bf7408.js (60 seconds)
https://platform-api.sharethis.com/js/sharethis.js (10 minutes)
https://count-server.sharethis.com/v2.0/get_counts…2Fwww.vosviewer.com%2F (15 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
https://www.vosviewer.com/media/images/content/08a…cedf5df544371__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/189…a4c4fea7db925__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/1c6…e75e4957918d3__200.png (expiration not specified)
https://www.vosviewer.com/media/images/content/330…d9a3a8554bece__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/7ae…d52b58621dc6f__200.jpg (expiration not specified)
https://www.vosviewer.com/media/images/content/a85…29d0ecff44b58__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/b61…74fb257b16e4e__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/ea3…65ac581592983__278.png (expiration not specified)
https://www.vosviewer.com/media/images/content/f8c…c1f2591ccd889__278.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/04f…a04ade04facfbb7ed2.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/823…7d4d9231def60f7a14.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/98a…7d2aa747262f2da2c8.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/9fb…5d9346b5f41a8a6a9f.png (expiration not specified)
https://www.vosviewer.com/media/images/gallery/e01…2e9ff5cee0f75a3700.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos/cwts_logo_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos…ogo_complete_white.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos…ogo_complete_white.png (expiration not specified)
https://www.vosviewer.com/media/images/style/logos…er_logo_mini_white.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…_level1_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…_background_active.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…vel1_mp_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…enu_level1_pointer.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/mainmenu_shader.png (expiration not specified)
https://www.vosviewer.com/media/images/style/menu/…vel1_mp_background.png (expiration not specified)
https://www.vosviewer.com/media/images/style/socials/socials.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_next.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_play.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_prev.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/gallery_sprite.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/launchbutton.png (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/preload.gif (expiration not specified)
https://www.vosviewer.com/media/images/style/ui/shadow_popup.png (expiration not specified)
https://buttons-config.sharethis.com/js/5def70c7ee37bc0019bf7408.js (60 seconds)
https://platform-api.sharethis.com/js/sharethis.js (10 minutes)
https://count-server.sharethis.com/v2.0/get_counts…2Fwww.vosviewer.com%2F (15 minutes)
https://ssl.google-analytics.com/ga.js (2 hours)
priority - 10 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 3 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:
https://www.vosviewer.com/applepie_2_8/jquery/jque…1.min.js?v=2019022413a
https://www.vosviewer.com/applepie_2_8/jquery/jque…i.min.js?v=2019022413a
https://www.vosviewer.com/applepie_2_8/applepie.min.js?v=2019022413a
https://www.vosviewer.com/applepie_topping/topping.min.js?v=2019022413a
https://www.vosviewer.com/applepie_2_8/jquery/jque…i.min.js?v=2019022413a
https://www.vosviewer.com/applepie_2_8/applepie.min.js?v=2019022413a
https://www.vosviewer.com/applepie_topping/topping.min.js?v=2019022413a
Optimize CSS Delivery of the following:
https://www.vosviewer.com/applepie_2_8/jquery/jque….min.css?v=2019022413a
https://www.vosviewer.com/style/core.min.css?v=2019022413a
https://www.vosviewer.com/applepie_2_8/shadowbox/s….min.css?v=2019022413a
https://www.vosviewer.com/style/core.min.css?v=2019022413a
https://www.vosviewer.com/applepie_2_8/shadowbox/s….min.css?v=2019022413a
priority - 7 Avoid landing page redirects
Your page has 2 redirects. Redirects introduce additional delays before the page can be loaded.
Avoid landing page redirects for the following chain of redirected URLs.
http://vosviewer.com/
http://www.vosviewer.com/
https://www.vosviewer.com/
http://www.vosviewer.com/
https://www.vosviewer.com/
priority - 3 Reduce server response time
In our test, your server responded in 0.52 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
priority - 0 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 2.9KiB (26% reduction).
Minifying https://www.vosviewer.com/ could save 2.6KiB (29% reduction) after compression.
Minifying https://ws.sharethis.com/secure/index.html could save 322B (16% reduction) after compression.
Minifying https://ws.sharethis.com/secure/index.html could save 322B (16% reduction) after compression.
priority - 0 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 886B (12% reduction).
Minifying https://www.vosviewer.com/applepie_2_8/jquery/jque….min.css?v=2019022413a could save 886B (12% reduction) after compression.
priority - 0 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 231B (40% reduction).
Compressing https://count-server.sharethis.com/v2.0/get_counts…2Fwww.vosviewer.com%2F could save 231B (40% reduction).
vosviewer.com Desktop Resources
| Total Resources | 63 |
| Number of Hosts | 9 |
| Static Resources | 49 |
| JavaScript Resources | 11 |
| CSS Resources | 5 |
vosviewer.com Desktop Resource Breakdown
vosviewer.com mobile page speed rank
Last tested: 2019-02-11
Mobile Speed
Bad
27/100
vosviewer.com Mobile Speed Test Quick Summary
priority - 127 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 1.2MiB (55% reduction).
Compressing http://www.vosviewer.com/media/images/content/f8c9…c1f2591ccd889__278.png could save 148.7KiB (78% reduction).
Compressing http://www.vosviewer.com/media/images/content/b614…74fb257b16e4e__278.png could save 141.8KiB (75% reduction).
Compressing http://www.vosviewer.com/media/images/content/08a8…cedf5df544371__278.png could save 141.1KiB (74% reduction).
Compressing http://www.vosviewer.com/media/images/content/ea30…65ac581592983__278.png could save 140.8KiB (74% reduction).
Compressing http://www.vosviewer.com/media/images/content/3300…d9a3a8554bece__278.png could save 136.7KiB (72% reduction).
Compressing http://www.vosviewer.com/media/images/content/189f…a4c4fea7db925__278.png could save 133.3KiB (70% reduction).
Compressing http://www.vosviewer.com/media/images/content/a85a…29d0ecff44b58__278.png could save 122.9KiB (65% reduction).
Compressing http://www.vosviewer.com/media/images/content/1c61…e75e4957918d3__200.png could save 81.9KiB (79% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/9fb2…5d9346b5f41a8a6a9f.png could save 40.3KiB (21% reduction).
Compressing http://www.vosviewer.com/media/images/content/f07c…8a9aefd52965a__100.png could save 36KiB (64% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/04f3…a04ade04facfbb7ed2.png could save 31.4KiB (18% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/e019…2e9ff5cee0f75a3700.png could save 28KiB (17% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/98a9…7d2aa747262f2da2c8.png could save 27.9KiB (19% reduction).
Compressing http://www.vosviewer.com/media/images/content/7ae5…d52b58621dc6f__200.jpg could save 19.3KiB (71% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/gallery_next.png could save 2.7KiB (90% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/gallery_prev.png could save 2.7KiB (91% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/launchbutton.png could save 2.5KiB (76% reduction).
Compressing http://www.vosviewer.com/media/images/style/socials/socials.png could save 1.9KiB (12% reduction).
Compressing http://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png could save 1,020B (11% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/gallery_play.png could save 200B (33% reduction).
Compressing http://www.vosviewer.com/media/images/content/b614…74fb257b16e4e__278.png could save 141.8KiB (75% reduction).
Compressing http://www.vosviewer.com/media/images/content/08a8…cedf5df544371__278.png could save 141.1KiB (74% reduction).
Compressing http://www.vosviewer.com/media/images/content/ea30…65ac581592983__278.png could save 140.8KiB (74% reduction).
Compressing http://www.vosviewer.com/media/images/content/3300…d9a3a8554bece__278.png could save 136.7KiB (72% reduction).
Compressing http://www.vosviewer.com/media/images/content/189f…a4c4fea7db925__278.png could save 133.3KiB (70% reduction).
Compressing http://www.vosviewer.com/media/images/content/a85a…29d0ecff44b58__278.png could save 122.9KiB (65% reduction).
Compressing http://www.vosviewer.com/media/images/content/1c61…e75e4957918d3__200.png could save 81.9KiB (79% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/9fb2…5d9346b5f41a8a6a9f.png could save 40.3KiB (21% reduction).
Compressing http://www.vosviewer.com/media/images/content/f07c…8a9aefd52965a__100.png could save 36KiB (64% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/04f3…a04ade04facfbb7ed2.png could save 31.4KiB (18% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/e019…2e9ff5cee0f75a3700.png could save 28KiB (17% reduction).
Compressing http://www.vosviewer.com/media/images/gallery/98a9…7d2aa747262f2da2c8.png could save 27.9KiB (19% reduction).
Compressing http://www.vosviewer.com/media/images/content/7ae5…d52b58621dc6f__200.jpg could save 19.3KiB (71% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/gallery_next.png could save 2.7KiB (90% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/gallery_prev.png could save 2.7KiB (91% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/launchbutton.png could save 2.5KiB (76% reduction).
Compressing http://www.vosviewer.com/media/images/style/socials/socials.png could save 1.9KiB (12% reduction).
Compressing http://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png could save 1,020B (11% reduction).
Compressing http://www.vosviewer.com/media/images/style/ui/gallery_play.png could save 200B (33% reduction).
priority - 61 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 596.5KiB (72% reduction).
Compressing http://www.vosviewer.com/applepie_2_8/applepie.min.js?v=f6d8f8ee2f74 could save 339KiB (67% reduction).
Compressing http://www.vosviewer.com/style/core.min.css?v=f6d8f8ee2f74 could save 170.5KiB (86% reduction).
Compressing http://www.vosviewer.com/applepie_2_8/jquery/jquer….min.js?v=f6d8f8ee2f74 could save 61.1KiB (65% reduction).
Compressing http://www.vosviewer.com/ could save 23.8KiB (73% reduction).
Compressing http://www.vosviewer.com/applepie_2_8/shadowbox/sh…min.css?v=f6d8f8ee2f74 could save 1.4KiB (66% reduction).
Compressing http://www.vosviewer.com/style/gallery/custom.html could save 642B (59% reduction).
Compressing http://pd.sharethis.com/pd/test_oracle could save 125B (29% reduction).
Compressing http://www.vosviewer.com/style/core.min.css?v=f6d8f8ee2f74 could save 170.5KiB (86% reduction).
Compressing http://www.vosviewer.com/applepie_2_8/jquery/jquer….min.js?v=f6d8f8ee2f74 could save 61.1KiB (65% reduction).
Compressing http://www.vosviewer.com/ could save 23.8KiB (73% reduction).
Compressing http://www.vosviewer.com/applepie_2_8/shadowbox/sh…min.css?v=f6d8f8ee2f74 could save 1.4KiB (66% reduction).
Compressing http://www.vosviewer.com/style/gallery/custom.html could save 642B (59% reduction).
Compressing http://pd.sharethis.com/pd/test_oracle could save 125B (29% reduction).
priority - 40 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 4 blocking script resources and 3 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://www.vosviewer.com/applepie_2_8/jquery/jquer….min.js?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_2_8/jquery/jquer….min.js?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_2_8/applepie.min.js?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_topping/topping.min.js?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_2_8/jquery/jquer….min.js?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_2_8/applepie.min.js?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_topping/topping.min.js?v=f6d8f8ee2f74
Optimize CSS Delivery of the following:
http://www.vosviewer.com/applepie_2_8/jquery/jquer…min.css?v=f6d8f8ee2f74
http://www.vosviewer.com/style/core.min.css?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_2_8/shadowbox/sh…min.css?v=f6d8f8ee2f74
http://www.vosviewer.com/style/core.min.css?v=f6d8f8ee2f74
http://www.vosviewer.com/applepie_2_8/shadowbox/sh…min.css?v=f6d8f8ee2f74
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://pd.sharethis.com/pd/test_oracle (expiration not specified)
http://www.vosviewer.com/media/images/content/08a8…cedf5df544371__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/189f…a4c4fea7db925__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/1c61…e75e4957918d3__200.png (expiration not specified)
http://www.vosviewer.com/media/images/content/3300…d9a3a8554bece__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/7ae5…d52b58621dc6f__200.jpg (expiration not specified)
http://www.vosviewer.com/media/images/content/a85a…29d0ecff44b58__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/b614…74fb257b16e4e__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/ea30…65ac581592983__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/f07c…8a9aefd52965a__100.png (expiration not specified)
http://www.vosviewer.com/media/images/content/f8c9…c1f2591ccd889__278.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/04f3…a04ade04facfbb7ed2.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/823b…7d4d9231def60f7a14.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/98a9…7d2aa747262f2da2c8.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/9fb2…5d9346b5f41a8a6a9f.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/e019…2e9ff5cee0f75a3700.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/…ogo_complete_white.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/…ogo_complete_white.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/…er_logo_mini_white.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…_level1_background.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…_background_active.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…vel1_mp_background.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…enu_level1_pointer.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/mainmenu_shader.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/s…vel1_mp_background.png (expiration not specified)
http://www.vosviewer.com/media/images/style/socials/socials.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_next.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_play.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_prev.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_sprite.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/launchbutton.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/preload.gif (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/shadow_popup.png (expiration not specified)
https://ws.sharethis.com/button/css/buttons-secure.css (expiration not specified)
http://t.sharethis.com/1/d/t.dhj?rnd=1549886469060…&dmn=www.vosviewer.com (60 minutes)
http://www.google-analytics.com/ga.js (2 hours)
http://www.vosviewer.com/media/images/content/08a8…cedf5df544371__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/189f…a4c4fea7db925__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/1c61…e75e4957918d3__200.png (expiration not specified)
http://www.vosviewer.com/media/images/content/3300…d9a3a8554bece__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/7ae5…d52b58621dc6f__200.jpg (expiration not specified)
http://www.vosviewer.com/media/images/content/a85a…29d0ecff44b58__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/b614…74fb257b16e4e__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/ea30…65ac581592983__278.png (expiration not specified)
http://www.vosviewer.com/media/images/content/f07c…8a9aefd52965a__100.png (expiration not specified)
http://www.vosviewer.com/media/images/content/f8c9…c1f2591ccd889__278.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/04f3…a04ade04facfbb7ed2.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/823b…7d4d9231def60f7a14.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/98a9…7d2aa747262f2da2c8.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/9fb2…5d9346b5f41a8a6a9f.png (expiration not specified)
http://www.vosviewer.com/media/images/gallery/e019…2e9ff5cee0f75a3700.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/…ogo_complete_white.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/leidenuniv_logo.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/…ogo_complete_white.png (expiration not specified)
http://www.vosviewer.com/media/images/style/logos/…er_logo_mini_white.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…_level1_background.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…_background_active.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…vel1_mp_background.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/m…enu_level1_pointer.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/mainmenu_shader.png (expiration not specified)
http://www.vosviewer.com/media/images/style/menu/s…vel1_mp_background.png (expiration not specified)
http://www.vosviewer.com/media/images/style/socials/socials.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_next.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_play.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_prev.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/gallery_sprite.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/launchbutton.png (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/preload.gif (expiration not specified)
http://www.vosviewer.com/media/images/style/ui/shadow_popup.png (expiration not specified)
https://ws.sharethis.com/button/css/buttons-secure.css (expiration not specified)
http://t.sharethis.com/1/d/t.dhj?rnd=1549886469060…&dmn=www.vosviewer.com (60 minutes)
http://www.google-analytics.com/ga.js (2 hours)
priority - 8 Prioritize visible content
Your page requires additional network round trips to render the above-the-fold content. For best performance, reduce the amount of HTML needed to render above-the-fold content.
The entire HTML response was not sufficient to render the above-the-fold content. This usually indicates that additional resources, loaded after HTML parsing, were required to render above-the-fold content. Prioritize visible content that is needed for rendering above-the-fold by including it directly in the HTML response.
Only about 41% of the final above-the-fold content could be rendered with the full HTML response.
Click to see the screenshot with only the HTML response:
priority - 4 Reduce server response time
In our test, your server responded in 0.48 seconds.
There are many factors that can slow down your server response time. Please read our recommendations to learn how you can monitor and measure where your server is spending the most time.
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 10.2KiB (29% reduction).
Minifying http://www.vosviewer.com/ could save 9.8KiB (31% reduction).
Minifying https://ws.sharethis.com/secure/index.html could save 321B (16% reduction) after compression.
Minifying http://www.vosviewer.com/style/gallery/custom.html could save 129B (12% reduction).
Minifying https://ws.sharethis.com/secure/index.html could save 321B (16% reduction) after compression.
Minifying http://www.vosviewer.com/style/gallery/custom.html could save 129B (12% reduction).
priority - 0 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 110B (26% reduction).
Minifying http://pd.sharethis.com/pd/test_oracle could save 110B (26% reduction).
vosviewer.com Mobile Resources
| Total Resources | 84 |
| Number of Hosts | 19 |
| Static Resources | 52 |
| JavaScript Resources | 13 |
| CSS Resources | 5 |
vosviewer.com Mobile Resource Breakdown
vosviewer.com mobile page usability
Last tested: 2019-02-11
Mobile Usability
Good
100/100
vosviewer.com similar domains
Similar domains:
www.vosviewer.com
www.vosviewer.net
www.vosviewer.org
www.vosviewer.info
www.vosviewer.biz
www.vosviewer.us
www.vosviewer.mobi
www.osviewer.com
www.vosviewer.com
www.cosviewer.com
www.vcosviewer.com
www.cvosviewer.com
www.fosviewer.com
www.vfosviewer.com
www.fvosviewer.com
www.gosviewer.com
www.vgosviewer.com
www.gvosviewer.com
www.bosviewer.com
www.vbosviewer.com
www.bvosviewer.com
www.vsviewer.com
www.visviewer.com
www.voisviewer.com
www.viosviewer.com
www.vksviewer.com
www.voksviewer.com
www.vkosviewer.com
www.vlsviewer.com
www.volsviewer.com
www.vlosviewer.com
www.vpsviewer.com
www.vopsviewer.com
www.vposviewer.com
www.voviewer.com
www.vowviewer.com
www.voswviewer.com
www.vowsviewer.com
www.voeviewer.com
www.voseviewer.com
www.voesviewer.com
www.vodviewer.com
www.vosdviewer.com
www.vodsviewer.com
www.vozviewer.com
www.voszviewer.com
www.vozsviewer.com
www.voxviewer.com
www.vosxviewer.com
www.voxsviewer.com
www.voaviewer.com
www.vosaviewer.com
www.voasviewer.com
www.vosiewer.com
www.vosciewer.com
www.vosvciewer.com
www.voscviewer.com
www.vosfiewer.com
www.vosvfiewer.com
www.vosfviewer.com
www.vosgiewer.com
www.vosvgiewer.com
www.vosgviewer.com
www.vosbiewer.com
www.vosvbiewer.com
www.vosbviewer.com
www.vosvewer.com
www.vosvuewer.com
www.vosviuewer.com
www.vosvuiewer.com
www.vosvjewer.com
www.vosvijewer.com
www.vosvjiewer.com
www.vosvkewer.com
www.vosvikewer.com
www.vosvkiewer.com
www.vosvoewer.com
www.vosvioewer.com
www.vosvoiewer.com
www.vosviwer.com
www.vosviwwer.com
www.vosviewwer.com
www.vosviwewer.com
www.vosviswer.com
www.vosvieswer.com
www.vosvisewer.com
www.vosvidwer.com
www.vosviedwer.com
www.vosvidewer.com
www.vosvirwer.com
www.vosvierwer.com
www.vosvirewer.com
www.vosvieer.com
www.vosvieqer.com
www.vosviewqer.com
www.vosvieqwer.com
www.vosvieaer.com
www.vosviewaer.com
www.vosvieawer.com
www.vosvieser.com
www.vosviewser.com
www.vosvieeer.com
www.vosvieweer.com
www.vosvieewer.com
www.vosviewr.com
www.vosviewwr.com
www.vosviewewr.com
www.vosviewsr.com
www.vosviewesr.com
www.vosviewdr.com
www.vosviewedr.com
www.vosviewder.com
www.vosviewrr.com
www.vosviewerr.com
www.vosviewrer.com
www.vosviewe.com
www.vosviewee.com
www.vosviewere.com
www.vosviewed.com
www.vosviewerd.com
www.vosviewef.com
www.vosviewerf.com
www.vosviewefr.com
www.vosviewet.com
www.vosviewert.com
www.vosviewetr.com
www.vosviewer.con
www.vosviewer.net
www.vosviewer.org
www.vosviewer.info
www.vosviewer.biz
www.vosviewer.us
www.vosviewer.mobi
www.osviewer.com
www.vosviewer.com
www.cosviewer.com
www.vcosviewer.com
www.cvosviewer.com
www.fosviewer.com
www.vfosviewer.com
www.fvosviewer.com
www.gosviewer.com
www.vgosviewer.com
www.gvosviewer.com
www.bosviewer.com
www.vbosviewer.com
www.bvosviewer.com
www.vsviewer.com
www.visviewer.com
www.voisviewer.com
www.viosviewer.com
www.vksviewer.com
www.voksviewer.com
www.vkosviewer.com
www.vlsviewer.com
www.volsviewer.com
www.vlosviewer.com
www.vpsviewer.com
www.vopsviewer.com
www.vposviewer.com
www.voviewer.com
www.vowviewer.com
www.voswviewer.com
www.vowsviewer.com
www.voeviewer.com
www.voseviewer.com
www.voesviewer.com
www.vodviewer.com
www.vosdviewer.com
www.vodsviewer.com
www.vozviewer.com
www.voszviewer.com
www.vozsviewer.com
www.voxviewer.com
www.vosxviewer.com
www.voxsviewer.com
www.voaviewer.com
www.vosaviewer.com
www.voasviewer.com
www.vosiewer.com
www.vosciewer.com
www.vosvciewer.com
www.voscviewer.com
www.vosfiewer.com
www.vosvfiewer.com
www.vosfviewer.com
www.vosgiewer.com
www.vosvgiewer.com
www.vosgviewer.com
www.vosbiewer.com
www.vosvbiewer.com
www.vosbviewer.com
www.vosvewer.com
www.vosvuewer.com
www.vosviuewer.com
www.vosvuiewer.com
www.vosvjewer.com
www.vosvijewer.com
www.vosvjiewer.com
www.vosvkewer.com
www.vosvikewer.com
www.vosvkiewer.com
www.vosvoewer.com
www.vosvioewer.com
www.vosvoiewer.com
www.vosviwer.com
www.vosviwwer.com
www.vosviewwer.com
www.vosviwewer.com
www.vosviswer.com
www.vosvieswer.com
www.vosvisewer.com
www.vosvidwer.com
www.vosviedwer.com
www.vosvidewer.com
www.vosvirwer.com
www.vosvierwer.com
www.vosvirewer.com
www.vosvieer.com
www.vosvieqer.com
www.vosviewqer.com
www.vosvieqwer.com
www.vosvieaer.com
www.vosviewaer.com
www.vosvieawer.com
www.vosvieser.com
www.vosviewser.com
www.vosvieeer.com
www.vosvieweer.com
www.vosvieewer.com
www.vosviewr.com
www.vosviewwr.com
www.vosviewewr.com
www.vosviewsr.com
www.vosviewesr.com
www.vosviewdr.com
www.vosviewedr.com
www.vosviewder.com
www.vosviewrr.com
www.vosviewerr.com
www.vosviewrer.com
www.vosviewe.com
www.vosviewee.com
www.vosviewere.com
www.vosviewed.com
www.vosviewerd.com
www.vosviewef.com
www.vosviewerf.com
www.vosviewefr.com
www.vosviewet.com
www.vosviewert.com
www.vosviewetr.com
www.vosviewer.con
vosviewer.com 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.
vosviewer.com 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.