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deepimpact.jpl.nasa.gov screenshot

Report Summary

  • 42

    Performance

    Renders faster than
    61% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

deepimpact.jpl.nasa.gov

Deep Impact (EPOXI) - NASA Science

Page Load Speed

3 sec in total

First Response

162 ms

Resources Loaded

1.8 sec

Page Rendered

1 sec

deepimpact.jpl.nasa.gov screenshot

About Website

Welcome to deepimpact.jpl.nasa.gov homepage info - get ready to check Deep Impact Jpl NASA best content for United States right away, or after learning these important things about deepimpact.jpl.nasa.gov

What was Deep Impact (EPOXI)? The primary mission of NASA’s Deep Impact was to probe beneath the surface of a comet. The spacecraft delivered a special impactor into the path of Tempel 1 to reveal nev...

Visit deepimpact.jpl.nasa.gov

Key Findings

We analyzed Deepimpact.jpl.nasa.gov page load time and found that the first response time was 162 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

deepimpact.jpl.nasa.gov performance score

42

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.3 s

18/100

10%

LCP (Largest Contentful Paint)

Value9.8 s

0/100

25%

SI (Speed Index)

Value4.8 s

67/100

10%

TBT (Total Blocking Time)

Value620 ms

48/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

Network Requests Diagram

deepimpact.jpl.nasa.gov

162 ms

377 ms

313 ms

713 ms

entry.CGfWGV5B.css

6 ms

Our browser made a total of 41 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Deepimpact.jpl.nasa.gov, 78% (32 requests) were made to Science.nasa.gov and 7% (3 requests) were made to Eex-gateway.fr011.ttecfed.com. The less responsive or slowest element that took the longest time to load (713 ms) relates to the external source Science.nasa.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 280.3 kB (7%)

Content Size

4.1 MB

After Optimization

3.8 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Deepimpact.jpl.nasa.gov main page is 4.1 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 3.7 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 271.2 kB

  • Original 336.0 kB
  • After minification 333.9 kB
  • After compression 64.8 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 271.2 kB or 81% of the original size.

Image Optimization

-0%

Potential reduce by 6.0 kB

  • Original 3.7 MB
  • After minification 3.7 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. Deep Impact Jpl NASA images are well optimized though.

JavaScript Optimization

-9%

Potential reduce by 3.1 kB

  • Original 35.3 kB
  • After minification 35.3 kB
  • After compression 32.3 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. This website has mostly compressed JavaScripts.

Requests Breakdown

Number of requests can be reduced by 15 (52%)

Requests Now

29

After Optimization

14

  • Images
  • JavaScript
  • CSS

The browser has sent 29 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Deep Impact Jpl 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 5 to 1 for JavaScripts and from 12 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

deepimpact.jpl.nasa.gov

deepimpact.jpl.nasa.gov

162 ms

377 ms

313 ms

713 ms

entry.CGfWGV5B.css

entry.CGfWGV5B.css

6 ms

style-index.DcH8Kg-2.css

style-index.DcH8Kg-2.css

7 ms

NavSecondaryDesktopBlock.sfNfmpJt.css

NavSecondaryDesktopBlock.sfNfmpJt.css

8 ms

BaseBreadcrumbs.QyjX-RkR.css

BaseBreadcrumbs.QyjX-RkR.css

8 ms

NavSecondaryDesktopDropdown.tJDJ0NFE.css

NavSecondaryDesktopDropdown.tJDJ0NFE.css

8 ms

NavSecondaryMobileBlock.B9SVoust.css

NavSecondaryMobileBlock.B9SVoust.css

9 ms

NavSecondaryMobile.PKlJOVsG.css

NavSecondaryMobile.PKlJOVsG.css

11 ms

MobileDropdown.85bdEfbx.css

MobileDropdown.85bdEfbx.css

10 ms

style-index.C80Ur6rI.css

style-index.C80Ur6rI.css

9 ms

PlayPauseButton.CWCCCydN.css

PlayPauseButton.CWCCCydN.css

9 ms

BlockLayout.BuQOopRv.css

BlockLayout.BuQOopRv.css

10 ms

navigation.BmH1KO7C.css

navigation.BmH1KO7C.css

11 ms

nasa-logo_2x.C0A3w2m0.png

nasa-logo_2x.C0A3w2m0.png

27 ms

deep_impact.jpg

deep_impact.jpg

181 ms

PublicSans-Regular.Df1PzLfj.woff

PublicSans-Regular.Df1PzLfj.woff

13 ms

PublicSans-Light.CzEHfy2N.woff

PublicSans-Light.CzEHfy2N.woff

12 ms

PublicSans-ExtraLight.CgSR4KL3.woff

PublicSans-ExtraLight.CgSR4KL3.woff

11 ms

PublicSans-Bold.B3Mhse2e.woff

PublicSans-Bold.B3Mhse2e.woff

12 ms

494399main_color-color_labeled_350.jpg

494399main_color-color_labeled_350.jpg

226 ms

main-image-star-forming-region-carina-nircam-final-5mb-1-jpeg.webp

main-image-star-forming-region-carina-nircam-final-5mb-1-jpeg.webp

36 ms

jpegpia24836.height-1024-jpg.webp

jpegpia24836.height-1024-jpg.webp

31 ms

observingsunposter-jpg.webp

observingsunposter-jpg.webp

33 ms

jpegpia21771.width-1600-jpg.webp

jpegpia21771.width-1600-jpg.webp

31 ms

p.js

p.js

31 ms

Universal-Federated-Analytics-Min.js

Universal-Federated-Analytics-Min.js

59 ms

gateway.min.js

gateway.min.js

71 ms

fs.utils.js

fs.utils.js

51 ms

fs.compress.js

fs.compress.js

52 ms

PublicSans-Italic.fe38sMgu.woff

PublicSans-Italic.fe38sMgu.woff

4 ms

PublicSans-LightItalic.CPUP_Ilj.woff

PublicSans-LightItalic.CPUP_Ilj.woff

4 ms

PublicSans-ExtraLightItalic.DrZ51es6.woff

PublicSans-ExtraLightItalic.DrZ51es6.woff

5 ms

PublicSans-BoldItalic.Cvd4Oofz.woff

PublicSans-BoldItalic.Cvd4Oofz.woff

5 ms

404-bg.B-eOJ4h_.jpg

404-bg.B-eOJ4h_.jpg

13 ms

nasa-logo.CFKB7Wqh.svg

nasa-logo.CFKB7Wqh.svg

2 ms

nasa-logo_2x.C0A3w2m0.png

nasa-logo_2x.C0A3w2m0.png

2 ms

admin-bar-logo-color.ziwswd3d.png

admin-bar-logo-color.ziwswd3d.png

1 ms

default-thumbnail.fCFQV2Qj.jpg

default-thumbnail.fCFQV2Qj.jpg

2 ms

Accessibility Review

deepimpact.jpl.nasa.gov accessibility score

91

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

deepimpact.jpl.nasa.gov best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

deepimpact.jpl.nasa.gov SEO score

100

Search Engine Optimization Advices

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 Deepimpact.jpl.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 Deepimpact.jpl.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

deepimpact.jpl.nasa.gov

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