Tools & Wizards About Us
pubs.giss.nasa.gov screenshot

Report Summary

  • 71

    Performance

    Renders faster than
    81% of other websites

  • 95

    Accessibility

    Visual factors better than
    that of 86% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 94

    SEO

    Google-friendlier than
    90% of websites

pubs.giss.nasa.gov

Pubs.GISS: NASA Goddard Institute for Space Studies Publications

Page Load Speed

1.5 sec in total

First Response

340 ms

Resources Loaded

941 ms

Page Rendered

178 ms

pubs.giss.nasa.gov screenshot

About Website

Click here to check amazing Pubs GISS NASA content for United States. Otherwise, check out these important facts you probably never knew about pubs.giss.nasa.gov

Research at the NASA Goddard Institute for Space Studies (GISS) emphasizes a broad study of global change.

Visit pubs.giss.nasa.gov

Key Findings

We analyzed Pubs.giss.nasa.gov page load time and found that the first response time was 340 ms and then it took 1.1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

pubs.giss.nasa.gov performance score

71

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value5.1 s

25/100

25%

SI (Speed Index)

Value4.1 s

79/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value4.2 s

86/100

10%

Network Requests Diagram

pubs.giss.nasa.gov

340 ms

pubs.giss.nasa.gov

135 ms

css2104.css

398 ms

pubs.css

25 ms

pubs.js

39 ms

Our browser made a total of 11 requests to load all elements on the main page. We found that 36% of them (4 requests) were addressed to the original Pubs.giss.nasa.gov, 55% (6 requests) were made to Giss.nasa.gov and 9% (1 request) were made to Dap.digitalgov.gov. The less responsive or slowest element that took the longest time to load (440 ms) relates to the external source Giss.nasa.gov.

Page Optimization Overview & Recommendations

Page size can be reduced by 45.0 kB (22%)

Content Size

206.3 kB

After Optimization

161.3 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Pubs.giss.nasa.gov main page is 206.3 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. Only 10% of websites need less resources to load. Images take 152.0 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 12.8 kB

  • Original 18.3 kB
  • After minification 17.6 kB
  • After compression 5.4 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 12.8 kB or 70% of the original size.

Image Optimization

-6%

Potential reduce by 9.5 kB

  • Original 152.0 kB
  • After minification 142.6 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. Pubs GISS NASA images are well optimized though.

JavaScript Optimization

-25%

Potential reduce by 2.9 kB

  • Original 11.6 kB
  • After minification 10.7 kB
  • After compression 8.7 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 2.9 kB or 25% of the original size.

CSS Optimization

-81%

Potential reduce by 19.8 kB

  • Original 24.4 kB
  • After minification 19.7 kB
  • After compression 4.6 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. Pubs.giss.nasa.gov needs all CSS files to be minified and compressed as it can save up to 19.8 kB or 81% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

9

After Optimization

9

  • Images
  • JavaScript
  • CSS

The browser has sent 9 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Pubs GISS NASA. According to our analytics all requests are already optimized.

Network Requests Diagram

pubs.giss.nasa.gov

pubs.giss.nasa.gov

340 ms

pubs.giss.nasa.gov

pubs.giss.nasa.gov

135 ms

css2104.css

css2104.css

398 ms

pubs.css

pubs.css

25 ms

pubs.js

pubs.js

39 ms

Universal-Federated-Analytics-Min.js

Universal-Federated-Analytics-Min.js

16 ms

nasa_x2.png

nasa_x2.png

424 ms

pubs_744x96x.jpg

pubs_744x96x.jpg

440 ms

gsig.png

gsig.png

431 ms

bkgd1609.jpg

bkgd1609.jpg

46 ms

hedrc.png

hedrc.png

79 ms

Accessibility Review

pubs.giss.nasa.gov accessibility score

95

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.

Best Practices

pubs.giss.nasa.gov best practices score

83

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

Serves images with low resolution

General

Impact

Issue

High

Page has valid source maps

SEO Factors

pubs.giss.nasa.gov SEO score

94

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

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 Pubs.giss.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 Pubs.giss.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

pubs.giss.nasa.gov

Open Graph description is not detected on the main page of Pubs GISS NASA. 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: