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Report Summary

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    Performance

  • 0

    Accessibility

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    Best Practices

  • 0

    SEO

m.cdc.gov

Centers for Disease Control and Prevention

Page Load Speed

1.8 sec in total

First Response

185 ms

Resources Loaded

1.2 sec

Page Rendered

402 ms

m.cdc.gov screenshot

About Website

Click here to check amazing M Cdc content for United States. Otherwise, check out these important facts you probably never knew about m.cdc.gov

As the nation’s health protection agency, CDC saves lives and protects people from health, safety, and security threats.

Visit m.cdc.gov

Key Findings

We analyzed M.cdc.gov page load time and found that the first response time was 185 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

m.cdc.gov performance score

0

Network Requests Diagram

m.cdc.gov

185 ms

bootstrap24.css

111 ms

app.css

156 ms

modernizr-latest.js

48 ms

homepage.css

66 ms

Our browser made a total of 79 requests to load all elements on the main page. We found that 78% of them (62 requests) were addressed to the original M.cdc.gov, 8% (6 requests) were made to Www2c.cdc.gov and 5% (4 requests) were made to Search.usa.gov. The less responsive or slowest element that took the longest time to load (315 ms) relates to the external source Search.usa.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 934.8 kB (57%)

Content Size

1.6 MB

After Optimization

699.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of M.cdc.gov main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 60% of websites need less resources to load. Javascripts take 675.1 kB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 58.3 kB

  • Original 70.3 kB
  • After minification 57.2 kB
  • After compression 12.0 kB

HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 13.1 kB, which is 19% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 58.3 kB or 83% of the original size.

Image Optimization

-8%

Potential reduce by 37.8 kB

  • Original 444.9 kB
  • After minification 407.1 kB

Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. M Cdc images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 462.2 kB

  • Original 675.1 kB
  • After minification 631.7 kB
  • After compression 212.9 kB

It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 462.2 kB or 68% of the original size.

CSS Optimization

-85%

Potential reduce by 376.5 kB

  • Original 444.2 kB
  • After minification 435.9 kB
  • After compression 67.6 kB

CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. M.cdc.gov needs all CSS files to be minified and compressed as it can save up to 376.5 kB or 85% of the original size.

Requests Breakdown

Number of requests can be reduced by 39 (51%)

Requests Now

76

After Optimization

37

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of M Cdc. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

m.cdc.gov

m.cdc.gov

185 ms

bootstrap24.css

bootstrap24.css

111 ms

app.css

app.css

156 ms

modernizr-latest.js

modernizr-latest.js

48 ms

homepage.css

homepage.css

66 ms

yamm.css

yamm.css

37 ms

localrd.css

localrd.css

44 ms

libs.min.js

libs.min.js

212 ms

core.min.js

core.min.js

35 ms

app.min.js

app.min.js

68 ms

foresee-trigger.js

foresee-trigger.js

52 ms

foresee-variables.js

foresee-variables.js

54 ms

Universal-Federated-Analytics-Min.js

Universal-Federated-Analytics-Min.js

67 ms

rd_custom_interactions.js

rd_custom_interactions.js

70 ms

topic_levels.js

topic_levels.js

95 ms

s_code_v21_cdcgov.js

s_code_v21_cdcgov.js

93 ms

rd_search.js

rd_search.js

95 ms

homePageSurvey.js

homePageSurvey.js

106 ms

rss-featurefeed-disease.js

rss-featurefeed-disease.js

105 ms

rss-featurefeed-healthy.js

rss-featurefeed-healthy.js

105 ms

rss-featurefeed-travel.js

rss-featurefeed-travel.js

106 ms

rss-featurefeed-emergency.js

rss-featurefeed-emergency.js

117 ms

homepage_gradient.jpg

homepage_gradient.jpg

271 ms

masthead.svg

masthead.svg

271 ms

masthead_3-col.svg

masthead_3-col.svg

266 ms

masthead_1-col.svg

masthead_1-col.svg

275 ms

su.png

su.png

264 ms

sm-plus.gif

sm-plus.gif

274 ms

16_250322-bt_thapar_zika_general_2_v4_1184x300.jpg

16_250322-bt_thapar_zika_general_2_v4_1184x300.jpg

282 ms

zika_285px.jpg

zika_285px.jpg

277 ms

healthy-contact-lens_285px.jpg

healthy-contact-lens_285px.jpg

279 ms

travelinsurance_285px.jpg

travelinsurance_285px.jpg

278 ms

colorectalcancer_285px.jpg

colorectalcancer_285px.jpg

278 ms

outbreak_icon.png

outbreak_icon.png

279 ms

CDC_247.png

CDC_247.png

279 ms

cdc_24-7_horizontal.png

cdc_24-7_horizontal.png

280 ms

immunization-schedules_200px.jpg

immunization-schedules_200px.jpg

280 ms

immunization-schedules_450px.jpg

immunization-schedules_450px.jpg

280 ms

virus.jpg

virus.jpg

281 ms

organization.jpg

organization.jpg

282 ms

dr_frieden.jpg

dr_frieden.jpg

283 ms

TwitterFailoverButton.png

TwitterFailoverButton.png

283 ms

ss.png

ss.png

283 ms

sm.png

sm.png

283 ms

lato-regular-webfont.woff

lato-regular-webfont.woff

283 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

284 ms

analytics.js

analytics.js

182 ms

feed.asp

feed.asp

170 ms

feed.asp

feed.asp

171 ms

feed.asp

feed.asp

171 ms

feed.asp

feed.asp

168 ms

feed.asp

feed.asp

169 ms

socialmenu.js

socialmenu.js

108 ms

socialmenu.css

socialmenu.css

107 ms

remote.loader.js

remote.loader.js

216 ms

feed.asp

feed.asp

66 ms

smRecommend.png

smRecommend.png

111 ms

smTweet.png

smTweet.png

109 ms

s33668742000591

s33668742000591

88 ms

facebook-32.png

facebook-32.png

77 ms

twitter-32.png

twitter-32.png

78 ms

foresee-surveydef.js

foresee-surveydef.js

75 ms

collect

collect

70 ms

travelhealthinsurance_456px.jpg

travelhealthinsurance_456px.jpg

55 ms

winterweather_456px.jpg

winterweather_456px.jpg

29 ms

healthy-contact-lens_456px.jpg

healthy-contact-lens_456px.jpg

156 ms

birth-defects-day_456px.jpg

birth-defects-day_456px.jpg

54 ms

foresee-dhtml.css

foresee-dhtml.css

21 ms

print.css

print.css

19 ms

sayt.css

sayt.css

89 ms

sayt_loader_libs.js

sayt_loader_libs.js

315 ms

stats.js

stats.js

173 ms

addthis-32.png

addthis-32.png

19 ms

twitter-16.png

twitter-16.png

20 ms

facebook-16.png

facebook-16.png

19 ms

pinterest-16.png

pinterest-16.png

21 ms

linkedin-16.png

linkedin-16.png

20 ms

email-16.png

email-16.png

20 ms

digg-16.png

digg-16.png

28 ms

SEO Factors

m.cdc.gov SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise M.cdc.gov can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that M.cdc.gov main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.

Social Sharing Optimization

m.cdc.gov

Open Graph data is detected on the main page of M Cdc. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: