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usap.gov screenshot

Report Summary

  • 59

    Performance

    Renders faster than
    74% of other websites

  • 93

    Accessibility

    Visual factors better than
    that of 80% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

usap.gov

The USAP Portal: Science and Support in Antarctica - Welcome to the United States Antarctic Program Portal

Page Load Speed

1.6 sec in total

First Response

200 ms

Resources Loaded

1.4 sec

Page Rendered

54 ms

usap.gov screenshot

About Website

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

USAP.gov is the main repository for information about the United States Antarctic Program. The site is designed for the general public, news agencies, academia, and program participants. Topics includ...

Visit usap.gov

Key Findings

We analyzed Usap.gov page load time and found that the first response time was 200 ms and then it took 1.4 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

usap.gov performance score

59

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

12/100

10%

LCP (Largest Contentful Paint)

Value13.5 s

0/100

25%

SI (Speed Index)

Value4.9 s

64/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.4 s

60/100

10%

Network Requests Diagram

usap.gov

200 ms

www.usap.gov

622 ms

usapgovstyle.css

95 ms

jquery-ui.min.css

142 ms

jquery.min.js

192 ms

Our browser made a total of 35 requests to load all elements on the main page. We found that 80% of them (28 requests) were addressed to the original Usap.gov, 9% (3 requests) were made to Script.crazyegg.com and 6% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (622 ms) belongs to the original domain Usap.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 451.5 kB (29%)

Content Size

1.5 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Usap.gov main page is 1.5 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. 55% of websites need less resources to load. Images take 920.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 30.2 kB

  • Original 37.1 kB
  • After minification 28.5 kB
  • After compression 6.9 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 8.5 kB, which is 23% 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 30.2 kB or 81% of the original size.

Image Optimization

-5%

Potential reduce by 49.2 kB

  • Original 920.0 kB
  • After minification 870.8 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. USAP images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 313.5 kB

  • Original 506.6 kB
  • After minification 500.3 kB
  • After compression 193.1 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 313.5 kB or 62% of the original size.

CSS Optimization

-79%

Potential reduce by 58.7 kB

  • Original 74.5 kB
  • After minification 67.1 kB
  • After compression 15.9 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. Usap.gov needs all CSS files to be minified and compressed as it can save up to 58.7 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (33%)

Requests Now

33

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of USAP. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

usap.gov

usap.gov

200 ms

www.usap.gov

www.usap.gov

622 ms

usapgovstyle.css

usapgovstyle.css

95 ms

jquery-ui.min.css

jquery-ui.min.css

142 ms

jquery.min.js

jquery.min.js

192 ms

jquery-migrate.min.js

jquery-migrate.min.js

203 ms

jquery-ui.min.js

jquery-ui.min.js

379 ms

jquery.validate.min.js

jquery.validate.min.js

242 ms

jquery.touchSwipe.min.js

jquery.touchSwipe.min.js

206 ms

shadowbox.js

shadowbox.js

246 ms

global.js

global.js

239 ms

Universal-Federated-Analytics-Min.js

Universal-Federated-Analytics-Min.js

26 ms

9775.js

9775.js

47 ms

title-usap.png

title-usap.png

56 ms

logo-usap.png

logo-usap.png

59 ms

logo-nsf.png

logo-nsf.png

57 ms

aims-logo.png

aims-logo.png

58 ms

McM00027.jpg

McM00027.jpg

160 ms

boresight00090.jpg

boresight00090.jpg

55 ms

spole00059.jpg

spole00059.jpg

139 ms

darksector00059.jpg

darksector00059.jpg

140 ms

Pal00007.jpg

Pal00007.jpg

195 ms

rss-2018-nsfflatlogo-sm.png

rss-2018-nsfflatlogo-sm.png

141 ms

news-icon.png

news-icon.png

141 ms

SAHPR_resources.png

SAHPR_resources.png

159 ms

pl-logo-home.jpg

pl-logo-home.jpg

160 ms

antsun-logo-home.jpg

antsun-logo-home.jpg

161 ms

spec-blueribbon.png

spec-blueribbon.png

161 ms

logo-nsf-lg.png

logo-nsf-lg.png

186 ms

nsf-white.svg

nsf-white.svg

194 ms

js

js

55 ms

analytics.js

analytics.js

35 ms

www.usap.gov.json

www.usap.gov.json

25 ms

2e23b996f30aa45a4331ff625e76329e.js

2e23b996f30aa45a4331ff625e76329e.js

23 ms

collect

collect

33 ms

Accessibility Review

usap.gov accessibility score

93

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

usap.gov best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

usap.gov SEO score

90

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

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

High

Tap targets are not sized appropriately

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 Usap.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 Usap.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

usap.gov

Open Graph description is not detected on the main page of USAP. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: