cdc.gov website information.
cdc.gov domain name is registered by .GOV top-level domain registry. See the other sites registred in .GOV domain zone.
Following name servers are specified for cdc.gov domain:
- ns2.cdc.gov
- ns3.cdc.gov
- ns1.cdc.gov
- icdc-us-ns2.cdc.gov
- icdc-us-ns1.cdc.gov
- icdc-us-ns3.cdc.gov
and probably website cdc.gov is hosted by LITS-AS-1, CA web hosting company. Check the complete list of other most popular websites hosted by LITS-AS-1, CA hosting company.
According to Alexa traffic rank the highest website cdc.gov position was 92 (in the world). The lowest Alexa rank position was 99. Now website cdc.gov ranked in Alexa database as number 98 (in the world).
Website cdc.gov Desktop speed measurement score (54/100) is better than the results of 28.19% of other sites shows that the page desktop performance can be improved.
cdc.gov Mobile usability score (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.
Mobile speed measurement score of cdc.gov (58/100) is better than the results of 50.23% 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 |
|---|---|---|
| Apr-26-2024 | 98 | 0 |
| Apr-25-2024 | 98 | 0 |
| Apr-24-2024 | 98 | 0 |
| Apr-23-2024 | 98 | 0 |
| Apr-22-2024 | 98 | 0 |
| Apr-21-2024 | 98 | 0 |
| Apr-20-2024 | 98 | 0 |
Advertisement
cdc.gov 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.
cdc.gov 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.
% DOTGOV WHOIS Server ready
Domain Name: CDC.GOV
Status: ACTIVE
Security Contact Email: ResponsibleDisclosure@hhs.gov
>>> Last update of whois database: 2023-09-26T12:52:25Z
cdc.gov server information
cdc.gov desktop page speed rank
Last tested: 2018-02-01
Desktop Speed
Bad
54/100
cdc.gov Desktop Speed Test Quick Summary
priority - 59 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 576.4KiB (61% reduction).
Compressing and resizing https://www.cdc.gov/homepage/images/whats-new/tbsymptoms-650px.png could save 240.2KiB (71% reduction).
Compressing https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-400px.jpg could save 86.7KiB (80% reduction).
Compressing https://www.cdc.gov/features/worldcancerday/worldcancerday_456px.jpg could save 47.8KiB (71% reduction).
Compressing https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-200px.jpg could save 47KiB (85% reduction).
Compressing and resizing https://www.cdc.gov/homepage/images/whats-new/i-am-cdc-neil-vora-650-px.jpg could save 43.8KiB (91% reduction).
Compressing and resizing https://www.cdc.gov/homepage/images/whats-new/do-you-have-the-flu_650px.jpg could save 30KiB (78% reduction).
Compressing and resizing https://www.cdc.gov/homepage/images/whats-new/norovirus-650px.jpg could save 22.7KiB (73% reduction).
Compressing https://www.cdc.gov/features/superbowlplaybook/superbowlplaybook_456px.jpg could save 15.9KiB (26% reduction).
Compressing https://www.cdc.gov/features/childrens-preparednes…redness-unit_456px.jpg could save 13.8KiB (24% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/sm.png could save 9.2KiB (24% reduction).
Compressing https://www.cdc.gov/features/holiday-travel-overse…vel-overseas_456px.jpg could save 5KiB (19% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png could save 3KiB (75% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/CDC_247.png could save 2.8KiB (13% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/su.png could save 1.7KiB (25% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png could save 1.7KiB (14% reduction).
Compressing https://www.cdc.gov/Templatepackage/3.0/images/hom…/homepage_gradient.jpg could save 1.1KiB (73% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png could save 968B (57% reduction).
Compressing https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg could save 925B (13% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png could save 899B (62% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png could save 872B (88% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/smRecommend.png could save 416B (44% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/homepage/outbreak_icon.png could save 217B (17% reduction).
Compressing https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-400px.jpg could save 86.7KiB (80% reduction).
Compressing https://www.cdc.gov/features/worldcancerday/worldcancerday_456px.jpg could save 47.8KiB (71% reduction).
Compressing https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-200px.jpg could save 47KiB (85% reduction).
Compressing and resizing https://www.cdc.gov/homepage/images/whats-new/i-am-cdc-neil-vora-650-px.jpg could save 43.8KiB (91% reduction).
Compressing and resizing https://www.cdc.gov/homepage/images/whats-new/do-you-have-the-flu_650px.jpg could save 30KiB (78% reduction).
Compressing and resizing https://www.cdc.gov/homepage/images/whats-new/norovirus-650px.jpg could save 22.7KiB (73% reduction).
Compressing https://www.cdc.gov/features/superbowlplaybook/superbowlplaybook_456px.jpg could save 15.9KiB (26% reduction).
Compressing https://www.cdc.gov/features/childrens-preparednes…redness-unit_456px.jpg could save 13.8KiB (24% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/sm.png could save 9.2KiB (24% reduction).
Compressing https://www.cdc.gov/features/holiday-travel-overse…vel-overseas_456px.jpg could save 5KiB (19% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png could save 3KiB (75% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/CDC_247.png could save 2.8KiB (13% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/su.png could save 1.7KiB (25% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png could save 1.7KiB (14% reduction).
Compressing https://www.cdc.gov/Templatepackage/3.0/images/hom…/homepage_gradient.jpg could save 1.1KiB (73% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png could save 968B (57% reduction).
Compressing https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg could save 925B (13% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png could save 899B (62% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png could save 872B (88% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/smRecommend.png could save 416B (44% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/homepage/outbreak_icon.png could save 217B (17% reduction).
priority - 26 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://www.cdc.gov/JScript/foresee-variables.js (expiration not specified)
https://www.cdc.gov/JScript/foresee/foresee-trigger.js (expiration not specified)
https://www.cdc.gov/JScript/homePageSurvey.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/adobe/analytics_cdcgov.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/topic_levels.js (expiration not specified)
https://www.cdc.gov/JScript/rd_search.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/bootstrap24.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/yamm.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/socialmenu.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/fonts/lato-regular-webfont.woff (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/masthead.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/outbreak_icon.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_1-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_3-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/sm.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smRecommend.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/digg-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/email-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/linkedin-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/pinterest-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/ss.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/su.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/libs/modernizr-latest.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/modules/socialmenu.js (expiration not specified)
https://www.cdc.gov/Templatepackage/3.0/images/hom…/homepage_gradient.jpg (expiration not specified)
https://www.cdc.gov/features/childrens-preparednes…redness-unit_456px.jpg (expiration not specified)
https://www.cdc.gov/features/holiday-travel-overse…vel-overseas_456px.jpg (expiration not specified)
https://www.cdc.gov/features/superbowlplaybook/superbowlplaybook_456px.jpg (expiration not specified)
https://www.cdc.gov/features/worldcancerday/worldcancerday_456px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/RD/CDC_247.png (expiration not specified)
https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png (expiration not specified)
https://www.cdc.gov/homepage/images/banner/17_2503…safety_v4_1184x300.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/banner/superbowl-650px.png (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-200px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-400px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/organization.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/virus.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/do-you-have-the-flu_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/i-am-cdc-neil-vora-650-px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/norovirus-650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/tbsymptoms-650px.png (expiration not specified)
https://www.cdc.gov/homepage/wcms-inc/localrd.css (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.cdc.gov/JScript/foresee/foresee-trigger.js (expiration not specified)
https://www.cdc.gov/JScript/homePageSurvey.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/adobe/analytics_cdcgov.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/topic_levels.js (expiration not specified)
https://www.cdc.gov/JScript/rd_search.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/bootstrap24.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/yamm.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/socialmenu.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/fonts/lato-regular-webfont.woff (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/masthead.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/outbreak_icon.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_1-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_3-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/sm.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smRecommend.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/digg-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/email-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/linkedin-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/pinterest-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/ss.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/su.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/libs/modernizr-latest.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/modules/socialmenu.js (expiration not specified)
https://www.cdc.gov/Templatepackage/3.0/images/hom…/homepage_gradient.jpg (expiration not specified)
https://www.cdc.gov/features/childrens-preparednes…redness-unit_456px.jpg (expiration not specified)
https://www.cdc.gov/features/holiday-travel-overse…vel-overseas_456px.jpg (expiration not specified)
https://www.cdc.gov/features/superbowlplaybook/superbowlplaybook_456px.jpg (expiration not specified)
https://www.cdc.gov/features/worldcancerday/worldcancerday_456px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/RD/CDC_247.png (expiration not specified)
https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png (expiration not specified)
https://www.cdc.gov/homepage/images/banner/17_2503…safety_v4_1184x300.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/banner/superbowl-650px.png (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-200px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/fellowships-400px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/organization.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/virus.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/do-you-have-the-flu_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/i-am-cdc-neil-vora-650-px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/norovirus-650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/tbsymptoms-650px.png (expiration not specified)
https://www.cdc.gov/homepage/wcms-inc/localrd.css (expiration not specified)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 blocking script resources and 5 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.cdc.gov/TemplatePackage/3.0/js/libs/modernizr-latest.js
Optimize CSS Delivery of the following:
https://www.cdc.gov/TemplatePackage/3.0/css/lib/bootstrap24.css
https://www.cdc.gov/TemplatePackage/3.0/css/app.css?3.2.3.8
https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css
https://www.cdc.gov/TemplatePackage/3.0/css/lib/yamm.css
https://www.cdc.gov/homepage/wcms-inc/localrd.css
https://www.cdc.gov/TemplatePackage/3.0/css/app.css?3.2.3.8
https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css
https://www.cdc.gov/TemplatePackage/3.0/css/lib/yamm.css
https://www.cdc.gov/homepage/wcms-inc/localrd.css
priority - 1 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 6.8KiB (20% reduction).
Minifying https://www.cdc.gov/JScript/metrics/adobe/analytics_cdcgov.js could save 2.8KiB (13% reduction) after compression.
Minifying https://www.cdc.gov/JScript/rd_search.js could save 1.8KiB (52% reduction) after compression.
Minifying https://www.cdc.gov/JScript/foresee/foresee-surveydef.js?build=7 could save 836B (15% reduction) after compression.
Minifying https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js could save 596B (49% reduction) after compression.
Minifying https://www.cdc.gov/JScript/foresee-variables.js could save 478B (95% reduction).
Minifying https://www.cdc.gov/JScript/homePageSurvey.js could save 243B (23% reduction) after compression.
Minifying https://www.cdc.gov/JScript/metrics/topic_levels.js could save 167B (23% reduction) after compression.
Minifying https://www.cdc.gov/JScript/rd_search.js could save 1.8KiB (52% reduction) after compression.
Minifying https://www.cdc.gov/JScript/foresee/foresee-surveydef.js?build=7 could save 836B (15% reduction) after compression.
Minifying https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js could save 596B (49% reduction) after compression.
Minifying https://www.cdc.gov/JScript/foresee-variables.js could save 478B (95% reduction).
Minifying https://www.cdc.gov/JScript/homePageSurvey.js could save 243B (23% reduction) after compression.
Minifying https://www.cdc.gov/JScript/metrics/topic_levels.js could save 167B (23% reduction) after compression.
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 1.9KiB (16% reduction).
Minifying https://www.cdc.gov/ could save 1.9KiB (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 923B (16% reduction).
Minifying https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css could save 759B (16% reduction) after compression.
Minifying https://www.cdc.gov/TemplatePackage/3.0/css/socialmenu.css could save 164B (18% reduction) after compression.
Minifying https://www.cdc.gov/TemplatePackage/3.0/css/socialmenu.css could save 164B (18% 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 171B (35% reduction).
Compressing https://www.cdc.gov/JScript/foresee-variables.js could save 171B (35% reduction).
cdc.gov Desktop Resources
| Total Resources | 66 |
| Number of Hosts | 4 |
| Static Resources | 52 |
| JavaScript Resources | 15 |
| CSS Resources | 8 |
cdc.gov Desktop Resource Breakdown
cdc.gov mobile page speed rank
Last tested: 2017-04-27
Mobile Speed
Bad
58/100
cdc.gov Mobile Speed Test Quick Summary
priority - 50 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://www.cdc.gov/Features/WorldMalariaDay/WorldMalariaDay_456px.jpg (expiration not specified)
https://www.cdc.gov/JScript/foresee-variables.js (expiration not specified)
https://www.cdc.gov/JScript/foresee/foresee-trigger.js (expiration not specified)
https://www.cdc.gov/JScript/homePageSurvey.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/adobe/analytics_cdcgov.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/topic_levels.js (expiration not specified)
https://www.cdc.gov/JScript/rd_search.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/bootstrap24.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/yamm.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/mobile.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/socialmenu.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/fonts/lato-regular-webfont.woff (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/arrow_totop.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/masthead.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/outbreak_icon.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_1-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_3-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/sm.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smRecommend.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/digg-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/email-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/linkedin-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/pinterest-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/ss.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/su.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/libs/modernizr-latest.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/modules/socialmenu.js (expiration not specified)
https://www.cdc.gov/features/SpringWeather/SpringWeather_456px.jpg (expiration not specified)
https://www.cdc.gov/features/air-quality-heartheal…-hearthealth_456px.jpg (expiration not specified)
https://www.cdc.gov/features/travel-natural-disast…al-disasters_456px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/RD/CDC_247.png (expiration not specified)
https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png (expiration not specified)
https://www.cdc.gov/homepage/images/banner/16_2503…weather_v2_734x268.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/banner/springweather_760x260.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/…st-bsl4-suit-400px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/zach-braden.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/organization.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/virus.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/air-…-hearthealth_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/eis-conference_650px.png (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/infantimmunizations_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/meningococcal_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/~inc~/localrd.css (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-disease.js (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-emergency.js (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-healthy.js (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-travel.js (expiration not specified)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=207…796518&_=1493321796549 (13.1 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796514&_=1493321796544 (13.7 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796515&_=1493321796545 (14.5 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796516&_=1493321796546 (14.5 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796517&_=1493321796547 (14.5 minutes)
https://d15vqlr7iz6e8x.cloudfront.net/assets/legac…t_75_ffffff_40x100.png (60 minutes)
https://search.usa.gov/assets/sayt.css (60 minutes)
https://search.usa.gov/assets/sayt_loader.js (60 minutes)
https://search.usa.gov/assets/sayt_loader_libs.js (60 minutes)
https://search.usa.gov/assets/stats.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
https://www.cdc.gov/JScript/foresee-variables.js (expiration not specified)
https://www.cdc.gov/JScript/foresee/foresee-trigger.js (expiration not specified)
https://www.cdc.gov/JScript/homePageSurvey.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/adobe/analytics_cdcgov.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js (expiration not specified)
https://www.cdc.gov/JScript/metrics/topic_levels.js (expiration not specified)
https://www.cdc.gov/JScript/rd_search.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/bootstrap24.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/lib/yamm.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/mobile.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/css/socialmenu.css (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/fonts/lato-regular-webfont.woff (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/arrow_totop.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/masthead.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/homepage/outbreak_icon.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_1-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/masthead_3-col.svg (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/sm.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smRecommend.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/digg-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/email-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/linkedin-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/pinterest-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-16.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/ss.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/images/su.png (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/libs/modernizr-latest.js (expiration not specified)
https://www.cdc.gov/TemplatePackage/3.0/js/modules/socialmenu.js (expiration not specified)
https://www.cdc.gov/features/SpringWeather/SpringWeather_456px.jpg (expiration not specified)
https://www.cdc.gov/features/air-quality-heartheal…-hearthealth_456px.jpg (expiration not specified)
https://www.cdc.gov/features/travel-natural-disast…al-disasters_456px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/RD/CDC_247.png (expiration not specified)
https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png (expiration not specified)
https://www.cdc.gov/homepage/images/banner/16_2503…weather_v2_734x268.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/banner/springweather_760x260.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/…st-bsl4-suit-400px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/cdc-in-action/zach-braden.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/organization.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/rd/virus.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/air-…-hearthealth_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/eis-conference_650px.png (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/infantimmunizations_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/images/whats-new/meningococcal_650px.jpg (expiration not specified)
https://www.cdc.gov/homepage/~inc~/localrd.css (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-disease.js (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-emergency.js (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-healthy.js (expiration not specified)
https://www.cdc.gov/homepage/~inc~/rss-featurefeed-travel.js (expiration not specified)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=207…796518&_=1493321796549 (13.1 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796514&_=1493321796544 (13.7 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796515&_=1493321796545 (14.5 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796516&_=1493321796546 (14.5 minutes)
https://www2c.cdc.gov/podcasts/feed.asp?feedid=198…796517&_=1493321796547 (14.5 minutes)
https://d15vqlr7iz6e8x.cloudfront.net/assets/legac…t_75_ffffff_40x100.png (60 minutes)
https://search.usa.gov/assets/sayt.css (60 minutes)
https://search.usa.gov/assets/sayt_loader.js (60 minutes)
https://search.usa.gov/assets/sayt_loader_libs.js (60 minutes)
https://search.usa.gov/assets/stats.js (60 minutes)
https://www.google-analytics.com/analytics.js (2 hours)
priority - 19 Optimize images
Properly formatting and compressing images can save many bytes of data.
Optimize the following images to reduce their size by 188.9KiB (33% reduction).
Compressing https://www.cdc.gov/features/SpringWeather/SpringWeather_456px.jpg could save 55.5KiB (79% reduction).
Compressing https://www.cdc.gov/features/air-quality-heartheal…-hearthealth_456px.jpg could save 44.2KiB (62% reduction).
Compressing https://www.cdc.gov/homepage/images/banner/16_2503…weather_v2_734x268.jpg could save 21.5KiB (43% reduction).
Compressing https://www.cdc.gov/homepage/images/whats-new/meningococcal_650px.jpg could save 13.1KiB (21% reduction).
Compressing https://www.cdc.gov/homepage/images/whats-new/infantimmunizations_650px.jpg could save 9.4KiB (16% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/sm.png could save 9.2KiB (24% reduction).
Compressing https://www.cdc.gov/homepage/images/whats-new/air-…-hearthealth_650px.jpg could save 7.9KiB (16% reduction).
Compressing https://www.cdc.gov/Features/WorldMalariaDay/WorldMalariaDay_456px.jpg could save 6.1KiB (13% reduction).
Compressing https://www.cdc.gov/features/travel-natural-disast…al-disasters_456px.jpg could save 5.2KiB (14% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png could save 3KiB (75% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/CDC_247.png could save 2.8KiB (13% reduction).
Compressing https://www.cdc.gov/homepage/images/banner/springweather_760x260.jpg could save 2.5KiB (12% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/su.png could save 1.7KiB (25% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png could save 1.7KiB (14% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png could save 968B (57% reduction).
Compressing https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg could save 925B (13% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png could save 899B (62% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png could save 872B (88% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/arrow_totop.png could save 861B (85% reduction).
Compressing https://www.cdc.gov/homepage/images/cdc-in-action/zach-braden.jpg could save 781B (12% reduction).
Compressing https://www.cdc.gov/features/air-quality-heartheal…-hearthealth_456px.jpg could save 44.2KiB (62% reduction).
Compressing https://www.cdc.gov/homepage/images/banner/16_2503…weather_v2_734x268.jpg could save 21.5KiB (43% reduction).
Compressing https://www.cdc.gov/homepage/images/whats-new/meningococcal_650px.jpg could save 13.1KiB (21% reduction).
Compressing https://www.cdc.gov/homepage/images/whats-new/infantimmunizations_650px.jpg could save 9.4KiB (16% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/sm.png could save 9.2KiB (24% reduction).
Compressing https://www.cdc.gov/homepage/images/whats-new/air-…-hearthealth_650px.jpg could save 7.9KiB (16% reduction).
Compressing https://www.cdc.gov/Features/WorldMalariaDay/WorldMalariaDay_456px.jpg could save 6.1KiB (13% reduction).
Compressing https://www.cdc.gov/features/travel-natural-disast…al-disasters_456px.jpg could save 5.2KiB (14% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/smTweet.png could save 3KiB (75% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/CDC_247.png could save 2.8KiB (13% reduction).
Compressing https://www.cdc.gov/homepage/images/banner/springweather_760x260.jpg could save 2.5KiB (12% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/su.png could save 1.7KiB (25% reduction).
Compressing https://www.cdc.gov/homepage/images/RD/cdc_24-7_horizontal.png could save 1.7KiB (14% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/twitter-32.png could save 968B (57% reduction).
Compressing https://www.cdc.gov/homepage/images/rd/cdc-museum-135px.jpg could save 925B (13% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/facebook-32.png could save 899B (62% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/social/addthis-32.png could save 872B (88% reduction).
Compressing https://www.cdc.gov/TemplatePackage/3.0/images/arrow_totop.png could save 861B (85% reduction).
Compressing https://www.cdc.gov/homepage/images/cdc-in-action/zach-braden.jpg could save 781B (12% reduction).
priority - 8 Eliminate render-blocking JavaScript and CSS in above-the-fold content
Your page has 1 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.
Optimize CSS Delivery of the following:
https://www.cdc.gov/TemplatePackage/3.0/css/lib/bootstrap24.css
priority - 1 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 5.9KiB (19% reduction).
Minifying https://www.cdc.gov/JScript/metrics/adobe/analytics_cdcgov.js could save 3KiB (13% reduction) after compression.
Minifying https://www.cdc.gov/JScript/rd_search.js could save 1.5KiB (48% reduction) after compression.
Minifying https://www.cdc.gov/JScript/foresee/foresee-surveydef.js?build=7 could save 836B (15% reduction) after compression.
Minifying https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js could save 626B (75% reduction) after compression.
Minifying https://www.cdc.gov/JScript/rd_search.js could save 1.5KiB (48% reduction) after compression.
Minifying https://www.cdc.gov/JScript/foresee/foresee-surveydef.js?build=7 could save 836B (15% reduction) after compression.
Minifying https://www.cdc.gov/JScript/metrics/rd_custom_interactions.js could save 626B (75% reduction) after compression.
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 2.4KiB (19% reduction).
Minifying https://www.cdc.gov/ could save 2.4KiB (19% 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 759B (16% reduction).
Minifying https://www.cdc.gov/TemplatePackage/3.0/css/homepage/homepage.css could save 759B (16% reduction) after compression.
cdc.gov Mobile Resources
| Total Resources | 84 |
| Number of Hosts | 9 |
| Static Resources | 67 |
| JavaScript Resources | 28 |
| CSS Resources | 10 |
cdc.gov Mobile Resource Breakdown
cdc.gov mobile page usability
Last tested: 2017-04-27
Mobile Usability
Good
99/100
cdc.gov Mobile Usability Test Quick Summary
priority - 0 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
<a href="http://api.add…prevention.png" class="share_button_f…tp-link-policy">Recommend on Facebook</a> and 1 others are close to other tap targets.cdc.gov similar domains
Similar domains:
www.cdc.com
www.cdc.net
www.cdc.org
www.cdc.info
www.cdc.biz
www.cdc.us
www.cdc.mobi
www.dc.gov
www.cdc.gov
www.xdc.gov
www.cxdc.gov
www.xcdc.gov
www.ddc.gov
www.cddc.gov
www.dcdc.gov
www.fdc.gov
www.cfdc.gov
www.fcdc.gov
www.vdc.gov
www.cvdc.gov
www.vcdc.gov
www.cc.gov
www.cxc.gov
www.cdxc.gov
www.csc.gov
www.cdsc.gov
www.csdc.gov
www.cec.gov
www.cdec.gov
www.cedc.gov
www.crc.gov
www.cdrc.gov
www.crdc.gov
www.cfc.gov
www.cdfc.gov
www.ccc.gov
www.cdcc.gov
www.ccdc.gov
www.cd.gov
www.cdx.gov
www.cdcx.gov
www.cdd.gov
www.cdcd.gov
www.cdf.gov
www.cdcf.gov
www.cdv.gov
www.cdcv.gov
www.cdvc.gov
www.cdc.net
www.cdc.org
www.cdc.info
www.cdc.biz
www.cdc.us
www.cdc.mobi
www.dc.gov
www.cdc.gov
www.xdc.gov
www.cxdc.gov
www.xcdc.gov
www.ddc.gov
www.cddc.gov
www.dcdc.gov
www.fdc.gov
www.cfdc.gov
www.fcdc.gov
www.vdc.gov
www.cvdc.gov
www.vcdc.gov
www.cc.gov
www.cxc.gov
www.cdxc.gov
www.csc.gov
www.cdsc.gov
www.csdc.gov
www.cec.gov
www.cdec.gov
www.cedc.gov
www.crc.gov
www.cdrc.gov
www.crdc.gov
www.cfc.gov
www.cdfc.gov
www.ccc.gov
www.cdcc.gov
www.ccdc.gov
www.cd.gov
www.cdx.gov
www.cdcx.gov
www.cdd.gov
www.cdcd.gov
www.cdf.gov
www.cdcf.gov
www.cdv.gov
www.cdcv.gov
www.cdvc.gov
cdc.gov 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.
cdc.gov 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.