CDC.GOV Website Information

cdc.gov Website Information

Daily Unique Visits: 3,781,306

Daily Page Views: 30,250,448

Income Per Day: $30,250

Estimated Value: $32,670,000

This website is located in United States and is using following IP address 198.246.102.49. See the complete list of popular websites hosted in United States.

cdc.gov is registered under .GOV top-level domain. Please check other sites in .GOV zone.

Website cdc.gov is using the following name servers:

  • icdc-us-ns1.cdc.gov
  • ns1.cdc.gov
  • ns2.cdc.gov
  • ns3.cdc.gov
  • icdc-us-ns3.cdc.gov
  • icdc-us-ns2.cdc.gov

and is probably hosted by CDC - U.S. Center For Disease Control and Prevention, US. See the full list of other websites hosted by CDC - U.S. Center For Disease Control and Prevention, US.

The highest website cdc.gov position in Alexa rank database was 82 and the lowest rank position was 4996. Current position of cdc.gov in Alexa rank database is 403.

Desktop speed score of cdc.gov (54/100) is better than the results of 28.19% of other sites and shows that the page desktop performance can be improved.

Mobile usability score of cdc.gov (99/100) is better than the results of 79.46% of other sites and means that the page is mobile-friendly.

Mobile speed 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.

Advertisement

cdc.gov Alexa Rank

The traffic rank is based on three months of aggregated historical traffic data from millions of Alexa Toolbar users and is a combined measure of page views and users.


cdc.gov whois

WHOIS gives you the ability to lookup any generic domains to find out the registered domain holder. WHOIS database are provided for information purposes only. It allows the public to check whether a specific domain name is still available or not and to obtain information related to the registration records of existing domain names.


% DOTGOV WHOIS Server ready
Domain Name: CDC.GOV
Status: ACTIVE
Security Contact Email: ResponsibleDisclosure@hhs.gov

>>> Last update of whois database: 2021-04-24T20:42:02Z

cdc.gov server information

Servers Location

cdc.gov desktop page speed rank

Last tested: 2018-02-01


Desktop Speed Bad
54/100

cdc.gov Desktop Speed Test Quick Summary


priority - 59Optimize 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).

priority - 26Leverage 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)

priority - 8Eliminate 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.

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

priority - 1Minify 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.

priority - 0Minify 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 - 0Minify 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.

priority - 0Enable 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 Resource Breakdown

Total Resources66
Number of Hosts4
Static Resources52
JavaScript Resources15
CSS Resources8

cdc.gov mobile page speed rank

Last tested: 2017-04-27


Mobile Speed Bad
58/100

cdc.gov Mobile Speed Test Quick Summary


priority - 50Leverage 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)

priority - 19Optimize 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).

priority - 8Eliminate 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.

Optimize CSS Delivery of the following:

https://www.cdc.gov/TemplatePackage/3.0/css/lib/bootstrap24.css

priority - 1Minify 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.

priority - 0Minify 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 - 0Minify 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 Resource Breakdown

Total Resources84
Number of Hosts9
Static Resources67
JavaScript Resources28
CSS Resources10

cdc.gov mobile page usability

Last tested: 2017-04-27


Mobile Usability Good
99/100

cdc.gov Mobile Usability Test Quick Summary


priority - 0Size 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 HTML validation

Warnings

The “banner” role is unnecessary for element “header”.

Line: 88 Column: 6 - 65
"...er"> <header role="banner" aria-label="Header" class="pt-2 pb-2"> ..."

The “navigation” role is unnecessary for element “nav”.

Line: 285 Column: 7 - 87
"...iv> <nav role="navigation" aria-label="Mobile Nav" id="mobilenav" class="sticky-top"> <..." Line: 289 Column: 3 - 50
"...rea --> <nav role="navigation" aria-label="Section Nav"> <b..." Line: 329 Column: 6 - 78
"...ea"> <nav role="navigation" aria-label="Section Nav" class="w-100 sticky-top"> ..." Line: 430 Column: 4 - 60
"...l" --> <nav role="navigation" aria-label="Left Navigation Menu"> ..." Line: 625 Column: 3 - 112
"...footer> <nav role="navigation" aria-label="Social Media" class="d-lg-none w-100 op-100 z-max bg-primary p-fix-bottom"> <..."

The “main” role is unnecessary for element “main”.

Line: 320 Column: 4 - 78
"...nt --> <main class="col-12 order-lg-2" role="main" aria-label="Main Content Area"> <..."

The “contentinfo” role is unnecessary for element “footer”.

Line: 465 Column: 5 - 51
"...d --> <footer role="contentinfo" aria-label="Footer"> ..."

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

cdc.gov Ping

Ping is a computer network administration software utility used to test the reachability of a host on an Internet Protocol (IP) network. It measures the round-trip time for messages sent from the originating host to a destination computer that are echoed back to the source.


cdc.gov TRACEROUTE

Traceroute is a computer network diagnostic tool for displaying the route (path) and measuring transit delays of packets across an Internet Protocol (IP) network. The history of the route is recorded as the round-trip times of the packets received from each successive host (remote node) in the route (path); the sum of the mean times in each hop is a measure of the total time spent to establish the connection. Traceroute proceeds unless all (three) sent packets are lost more than twice, then the connection is lost and the route cannot be evaluated.