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esteem.larc.nasa.gov screenshot

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

esteem.larc.nasa.gov

NASA Website

Page Load Speed

1.3 sec in total

First Response

297 ms

Resources Loaded

910 ms

Page Rendered

76 ms

esteem.larc.nasa.gov screenshot

About Website

Welcome to esteem.larc.nasa.gov homepage info - get ready to check Esteem Larc NASA best content for United States right away, or after learning these important things about esteem.larc.nasa.gov

NASA.gov brings you the latest images, videos and news from America's space agency. Get the latest updates on NASA missions, watch NASA TV live, and learn about our quest to reveal the unknown and ben...

Visit esteem.larc.nasa.gov

Key Findings

We analyzed Esteem.larc.nasa.gov page load time and found that the first response time was 297 ms and then it took 986 ms to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

esteem.larc.nasa.gov performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value47.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value56.5 s

0/100

25%

SI (Speed Index)

Value49.7 s

0/100

10%

TBT (Total Blocking Time)

Value14,930 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value72.7 s

0/100

10%

Network Requests Diagram

esteem.larc.nasa.gov

297 ms

esteem.larc.nasa.gov

105 ms

89 ms

date.css

26 ms

datepicker.1.7.css

33 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 5% of them (2 requests) were addressed to the original Esteem.larc.nasa.gov, 37% (14 requests) were made to Nasa.gov and 11% (4 requests) were made to Script.crazyegg.com. The less responsive or slowest element that took the longest time to load (297 ms) belongs to the original domain Esteem.larc.nasa.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 507.0 kB (81%)

Content Size

622.9 kB

After Optimization

115.9 kB

  • HTML
  • JavaScript
  • CSS

In fact, the total size of Esteem.larc.nasa.gov main page is 622.9 kB. 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. CSS take 527.1 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 22.2 kB

  • Original 28.5 kB
  • After minification 28.4 kB
  • After compression 6.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 22.2 kB or 78% of the original size.

JavaScript Optimization

-48%

Potential reduce by 32.1 kB

  • Original 67.3 kB
  • After minification 67.3 kB
  • After compression 35.2 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 32.1 kB or 48% of the original size.

CSS Optimization

-86%

Potential reduce by 452.7 kB

  • Original 527.1 kB
  • After minification 431.2 kB
  • After compression 74.3 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. Esteem.larc.nasa.gov needs all CSS files to be minified and compressed as it can save up to 452.7 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 25 (78%)

Requests Now

32

After Optimization

7

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 32 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Esteem Larc NASA. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

esteem.larc.nasa.gov

esteem.larc.nasa.gov

297 ms

esteem.larc.nasa.gov

esteem.larc.nasa.gov

105 ms

89 ms

date.css

date.css

26 ms

datepicker.1.7.css

datepicker.1.7.css

33 ms

date_repeat_field.css

date_repeat_field.css

27 ms

editor-global.css

editor-global.css

35 ms

scald_before_after_image.css

scald_before_after_image.css

38 ms

scald_htmlsnippet.css

scald_htmlsnippet.css

53 ms

scald_iframe.css

scald_iframe.css

37 ms

views.css

views.css

38 ms

vendor.css

vendor.css

48 ms

nasa.css

nasa.css

64 ms

Universal-Federated-Analytics-Min.js

Universal-Federated-Analytics-Min.js

32 ms

google_tag.script.js

google_tag.script.js

62 ms

vendor.js

vendor.js

98 ms

nasa.js

nasa.js

92 ms

1109.js

1109.js

38 ms

css

css

38 ms

css2

css2

49 ms

analytics.js

analytics.js

107 ms

iframe_api

iframe_api

142 ms

gateway.min.js

gateway.min.js

96 ms

wrapper.js

wrapper.js

69 ms

gtm.js

gtm.js

69 ms

www.nasa.gov.json

www.nasa.gov.json

18 ms

a18bb0e21d11a839b7adb013c92ee611.js

a18bb0e21d11a839b7adb013c92ee611.js

35 ms

collect

collect

41 ms

collect

collect

120 ms

fs.record.js

fs.record.js

19 ms

fs.utils.js

fs.utils.js

38 ms

fs.trigger.js

fs.trigger.js

38 ms

NaPecZTIAOhVxoMyOr9n_E7fdMPmCKZRbrw.ttf

NaPecZTIAOhVxoMyOr9n_E7fdMPmCKZRbrw.ttf

117 ms

NaPDcZTIAOhVxoMyOr9n_E7ffBzCGItzZpabuWI.ttf

NaPDcZTIAOhVxoMyOr9n_E7ffBzCGItzZpabuWI.ttf

117 ms

NaPDcZTIAOhVxoMyOr9n_E7ffHjDGItzZpabuWI.ttf

NaPDcZTIAOhVxoMyOr9n_E7ffHjDGItzZpabuWI.ttf

118 ms

www-widgetapi.js

www-widgetapi.js

79 ms

www.nasa.gov.json

www.nasa.gov.json

78 ms

iFrame.html

iFrame.html

6 ms

Accessibility Review

esteem.larc.nasa.gov accessibility score

95

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-hidden="true"] elements contain focusable descendents

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

esteem.larc.nasa.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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

esteem.larc.nasa.gov SEO score

83

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 Esteem.larc.nasa.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 Esteem.larc.nasa.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

esteem.larc.nasa.gov

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