Tools & Wizards About Us
isgi.unistra.fr screenshot

Report Summary

  • 98

    Performance

    Renders faster than
    95% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 75

    SEO

    Google-friendlier than
    32% of websites

isgi.unistra.fr

ISGI - International Service of Geomagnetic Indices

Page Load Speed

2.4 sec in total

First Response

575 ms

Resources Loaded

1.7 sec

Page Rendered

137 ms

isgi.unistra.fr screenshot

About Website

Click here to check amazing ISGI Unistra content for France. Otherwise, check out these important facts you probably never knew about isgi.unistra.fr

ISGI, International Service for Geomagnetic Indices, provides reference geomagnetic indices endorsed by IAGA, to the scientific community

Visit isgi.unistra.fr

Key Findings

We analyzed Isgi.unistra.fr page load time and found that the first response time was 575 ms and then it took 1.9 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

isgi.unistra.fr performance score

98

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.2 s

99/100

10%

LCP (Largest Contentful Paint)

Value1.2 s

100/100

25%

SI (Speed Index)

Value3.1 s

93/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.5 s

92/100

10%

Network Requests Diagram

isgi.unistra.fr

575 ms

isgi.unistra.fr

416 ms

styles.css

99 ms

script.js

673 ms

jquery-1.11.3.min.js

295 ms

Our browser made a total of 17 requests to load all elements on the main page. We found that 94% of them (16 requests) were addressed to the original Isgi.unistra.fr, 6% (1 request) were made to Pa-stats.u-strasbg.fr. The less responsive or slowest element that took the longest time to load (673 ms) relates to the external source Pa-stats.u-strasbg.fr.

Page Optimization Overview & Recommendations

Page size can be reduced by 90.8 kB (28%)

Content Size

326.0 kB

After Optimization

235.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Isgi.unistra.fr main page is 326.0 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. 15% of websites need less resources to load. Images take 131.7 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 75.2 kB

  • Original 84.6 kB
  • After minification 84.2 kB
  • After compression 9.4 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 75.2 kB or 89% of the original size.

Image Optimization

-10%

Potential reduce by 13.4 kB

  • Original 131.7 kB
  • After minification 118.3 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. ISGI Unistra images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 865 B

  • Original 105.7 kB
  • After minification 105.7 kB
  • After compression 104.8 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.

CSS Optimization

-32%

Potential reduce by 1.3 kB

  • Original 4.1 kB
  • After minification 4.1 kB
  • After compression 2.7 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. Isgi.unistra.fr needs all CSS files to be minified and compressed as it can save up to 1.3 kB or 32% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

15

After Optimization

15

  • Images
  • JavaScript
  • CSS

The browser has sent 15 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ISGI Unistra. According to our analytics all requests are already optimized.

Network Requests Diagram

isgi.unistra.fr

isgi.unistra.fr

575 ms

isgi.unistra.fr

isgi.unistra.fr

416 ms

styles.css

styles.css

99 ms

script.js

script.js

673 ms

jquery-1.11.3.min.js

jquery-1.11.3.min.js

295 ms

highcharts.js

highcharts.js

492 ms

logo_ISGI.gif

logo_ISGI.gif

311 ms

logo_IAGA.gif

logo_IAGA.gif

293 ms

logo_WDS.jpg

logo_WDS.jpg

487 ms

LOGO_CNRS_BLEU.png

LOGO_CNRS_BLEU.png

390 ms

logo_CNES.gif

logo_CNES.gif

390 ms

logo_unistra.png

logo_unistra.png

392 ms

logo_EOST2.jpg

logo_EOST2.jpg

487 ms

icon_home.gif

icon_home.gif

487 ms

frise.png

frise.png

390 ms

barre.png

barre.png

390 ms

print.css

print.css

98 ms

Accessibility Review

isgi.unistra.fr accessibility score

87

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.

Names and labels

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

Links do not have a discernible name

Best Practices

isgi.unistra.fr best practices score

83

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

SEO Factors

isgi.unistra.fr SEO score

75

Search Engine Optimization Advices

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 Isgi.unistra.fr 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 Isgi.unistra.fr 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

isgi.unistra.fr

Open Graph description is not detected on the main page of ISGI Unistra. 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: