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defense.gov screenshot

Report Summary

  • 27

    Performance

    Renders faster than
    46% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 56% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

defense.gov

U.S. Department of Defense

Page Load Speed

1.8 sec in total

First Response

152 ms

Resources Loaded

1 sec

Page Rendered

584 ms

defense.gov screenshot

About Website

Welcome to defense.gov homepage info - get ready to check Defense best content for United States right away, or after learning these important things about defense.gov

The Department of Defense is America's largest government agency. Our mission is to provide the military forces needed to deter war and ensure our nation's security.

Visit defense.gov

Key Findings

We analyzed Defense.gov page load time and found that the first response time was 152 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 35% of websites can load faster.

Performance Metrics

defense.gov performance score

27

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value9.9 s

0/100

10%

LCP (Largest Contentful Paint)

Value14.2 s

0/100

25%

SI (Speed Index)

Value9.9 s

10/100

10%

TBT (Total Blocking Time)

Value890 ms

32/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value14.0 s

10/100

10%

Network Requests Diagram

www.defense.gov

152 ms

default.css

51 ms

module.css

25 ms

module.css

30 ms

slick.css

39 ms

Our browser made a total of 111 requests to load all elements on the main page. We found that 69% of them (77 requests) were addressed to the original Defense.gov, 15% (17 requests) were made to Media.defense.gov and 9% (10 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (544 ms) relates to the external source Media.defense.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 2.8 MB (40%)

Content Size

6.9 MB

After Optimization

4.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Defense.gov main page is 6.9 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. Only a small number of websites need less resources to load. Images take 3.2 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 204.4 kB

  • Original 252.5 kB
  • After minification 213.2 kB
  • After compression 48.2 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 39.4 kB, which is 16% 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 204.4 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 2.7 kB

  • Original 3.2 MB
  • After minification 3.2 MB

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. Defense images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 2.1 MB

  • Original 2.8 MB
  • After minification 2.5 MB
  • After compression 715.9 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 2.1 MB or 74% of the original size.

CSS Optimization

-74%

Potential reduce by 482.3 kB

  • Original 647.6 kB
  • After minification 555.6 kB
  • After compression 165.3 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. Defense.gov needs all CSS files to be minified and compressed as it can save up to 482.3 kB or 74% of the original size.

Requests Breakdown

Number of requests can be reduced by 68 (71%)

Requests Now

96

After Optimization

28

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 96 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Defense. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 45 to 1 for JavaScripts and from 25 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.defense.gov

www.defense.gov

152 ms

default.css

default.css

51 ms

module.css

module.css

25 ms

module.css

module.css

30 ms

slick.css

slick.css

39 ms

slick-theme.css

slick-theme.css

27 ms

template.css

template.css

33 ms

bootstrap.min.css

bootstrap.min.css

57 ms

skin.css

skin.css

40 ms

container.css

container.css

53 ms

portal.css

portal.css

49 ms

livebadge.css

livebadge.css

62 ms

dnn.css

dnn.css

54 ms

home-new.css

home-new.css

74 ms

fa-social-icons.css

fa-social-icons.css

73 ms

skipnav.css

skipnav.css

62 ms

style.css

style.css

63 ms

colorbox.css

colorbox.css

80 ms

mediaelementplayer.css

mediaelementplayer.css

84 ms

base.css

base.css

81 ms

all.min.css

all.min.css

76 ms

v4-shims.min.css

v4-shims.min.css

94 ms

video-js.min.css

video-js.min.css

95 ms

style.min.css

style.min.css

86 ms

jquery.js

jquery.js

106 ms

jquery-migrate.js

jquery-migrate.js

89 ms

jquery-ui.js

jquery-ui.js

129 ms

addthis_widget.js

addthis_widget.js

49 ms

slick.min.js

slick.min.js

104 ms

slick.min.css

slick.min.css

105 ms

Universal-Federated-Analytics-6.9.js

Universal-Federated-Analytics-6.9.js

121 ms

ScriptResource.axd

ScriptResource.axd

121 ms

ScriptResource.axd

ScriptResource.axd

118 ms

slick.min.js

slick.min.js

118 ms

mediaelement-and-player.min.js

mediaelement-and-player.min.js

126 ms

dnn.js

dnn.js

121 ms

dnn.modalpopup.js

dnn.modalpopup.js

121 ms

page.js

page.js

46 ms

skin.js

skin.js

165 ms

menu.js

menu.js

147 ms

dnncore.js

dnncore.js

151 ms

mobile-detect.min.js

mobile-detect.min.js

142 ms

moment.js

moment.js

143 ms

vue.min.js

vue.min.js

139 ms

css

css

44 ms

vue-resource.min.js

vue-resource.min.js

128 ms

ArticleCS.js

ArticleCS.js

124 ms

jquery.colorbox.js

jquery.colorbox.js

141 ms

jquery-migrate.js

jquery-migrate.js

143 ms

DVIDSVideoAnalytics.min.js

DVIDSVideoAnalytics.min.js

132 ms

jquery.touchSwipe.min.js

jquery.touchSwipe.min.js

133 ms

cycle2.js

cycle2.js

137 ms

jquery.cycle2.swipe.js

jquery.cycle2.swipe.js

137 ms

jquery.imageScroll.min.js

jquery.imageScroll.min.js

122 ms

jquery.carouFredSel-6.2.1-packed.js

jquery.carouFredSel-6.2.1-packed.js

122 ms

bodyScrollLock.js

bodyScrollLock.js

144 ms

es6dependencies.build.js

es6dependencies.build.js

139 ms

gridslideshow.build.js

gridslideshow.build.js

145 ms

dgov2_sharemore.js

dgov2_sharemore.js

143 ms

dnn.servicesframework.js

dnn.servicesframework.js

140 ms

common.js

common.js

143 ms

moment-timezone-with-data.js

moment-timezone-with-data.js

145 ms

image-set-polyfill.js

image-set-polyfill.js

126 ms

video.min.js

video.min.js

143 ms

script.js

script.js

127 ms

dgov-icons.js

dgov-icons.js

128 ms

dle-events-panel.js

dle-events-panel.js

127 ms

dvids-dle-api.js

dvids-dle-api.js

129 ms

analyticsParamsForDVIDSAnalyticsAPI.js

analyticsParamsForDVIDSAnalyticsAPI.js

126 ms

bootstrap.min.js

bootstrap.min.js

169 ms

240502-D-XI929-1001.JPG

240502-D-XI929-1001.JPG

174 ms

DOD-Icon-Header.png

DOD-Icon-Header.png

82 ms

vcl-988_hoz_rgb.svg

vcl-988_hoz_rgb.svg

125 ms

DOD-Icon-Header.png

DOD-Icon-Header.png

83 ms

171112-N-TQ088-1754C.JPG

171112-N-TQ088-1754C.JPG

267 ms

130822-F-BW403-1082A.JPG

130822-F-BW403-1082A.JPG

329 ms

240304-F-ZA639-1511A.JPG

240304-F-ZA639-1511A.JPG

329 ms

240502-A-D0439-001.JPG

240502-A-D0439-001.JPG

329 ms

240411-M-VR873-2432.JPG

240411-M-VR873-2432.JPG

328 ms

240502-N-OW182-000C.JPG

240502-N-OW182-000C.JPG

329 ms

240425-F-OC707-8009A.JPG

240425-F-OC707-8009A.JPG

327 ms

240424-F-XO712-1012A.JPG

240424-F-XO712-1012A.JPG

502 ms

240501-Z-TJ333-001A.JPG

240501-Z-TJ333-001A.JPG

502 ms

220325-D-RB598-001.JPG

220325-D-RB598-001.JPG

544 ms

240412-M-XL497-1160.JPG

240412-M-XL497-1160.JPG

501 ms

240316-D-WM747-1019.JPG

240316-D-WM747-1019.JPG

502 ms

us_flag_small.png

us_flag_small.png

143 ms

icon-dot-gov.svg

icon-dot-gov.svg

143 ms

icon-https.svg

icon-https.svg

142 ms

S6uyw4BMUTPHjx4wWw.ttf

S6uyw4BMUTPHjx4wWw.ttf

158 ms

S6u9w4BMUTPHh7USSwiPHA.ttf

S6u9w4BMUTPHh7USSwiPHA.ttf

159 ms

S6u9w4BMUTPHh6UVSwiPHA.ttf

S6u9w4BMUTPHh6UVSwiPHA.ttf

328 ms

S6u9w4BMUTPHh50XSwiPHA.ttf

S6u9w4BMUTPHh50XSwiPHA.ttf

328 ms

fa-brands-400.ttf

fa-brands-400.ttf

159 ms

wlp2gwHKFkZgtmSR3NB0oRJfbwhW.ttf

wlp2gwHKFkZgtmSR3NB0oRJfbwhW.ttf

375 ms

wlppgwHKFkZgtmSR3NB0oRJXsCxGDNNV.ttf

wlppgwHKFkZgtmSR3NB0oRJXsCxGDNNV.ttf

375 ms

wlppgwHKFkZgtmSR3NB0oRJX1C1GDNNV.ttf

wlppgwHKFkZgtmSR3NB0oRJX1C1GDNNV.ttf

374 ms

wlpogwHKFkZgtmSR3NB0oRJfajhRK_M.ttf

wlpogwHKFkZgtmSR3NB0oRJfajhRK_M.ttf

374 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

351 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYA.ttf

352 ms

fa-solid-900.ttf

fa-solid-900.ttf

341 ms

fa-regular-400.ttf

fa-regular-400.ttf

127 ms

220325-D-RB598-001.JPG

220325-D-RB598-001.JPG

266 ms

240412-M-XL497-1160.JPG

240412-M-XL497-1160.JPG

264 ms

240316-D-WM747-1019.JPG

240316-D-WM747-1019.JPG

221 ms

210512-D-BM568-1287R.JPG

210512-D-BM568-1287R.JPG

265 ms

remote.loader.js

remote.loader.js

212 ms

sm.25.html

sm.25.html

160 ms

eso.BRQnzO8v.js

eso.BRQnzO8v.js

203 ms

ajax-loader.gif

ajax-loader.gif

58 ms

sayt_loader.js

sayt_loader.js

19 ms

Accessibility Review

defense.gov accessibility score

84

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

[aria-*] attributes are not valid or misspelled

Best Practices

defense.gov best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

defense.gov SEO score

77

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

High

robots.txt is not valid

Mobile Friendly

Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).

Impact

Issue

High

Document uses legible font sizes

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 Defense.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 Defense.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

defense.gov

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