Tools & Wizards About Us
root-forum.cern.ch screenshot

Report Summary

  • 77

    Performance

    Renders faster than
    85% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 94

    SEO

    Google-friendlier than
    90% of websites

root-forum.cern.ch

ROOT Forum

Page Load Speed

5.5 sec in total

First Response

730 ms

Resources Loaded

4 sec

Page Rendered

720 ms

root-forum.cern.ch screenshot

About Website

Visit root-forum.cern.ch now to see the best up-to-date ROOT Forum Cern content for United States and also check out these interesting facts you probably never knew about root-forum.cern.ch

ROOT support and discussion

Visit root-forum.cern.ch

Key Findings

We analyzed Root-forum.cern.ch page load time and found that the first response time was 730 ms and then it took 4.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

root-forum.cern.ch performance score

77

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value5.3 s

58/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value3.8 s

90/100

10%

Network Requests Diagram

root-forum.cern.ch

730 ms

browser-detect-115ab5953de1b5bb122bfb26b757f5391dd8d1d2aef2b81baf7b59aee99d9f34.js

102 ms

en_US-bae2f2564dc4f22f1dbb7bda4d767f81ece2ec62bb70dbd06a9d097f9457c4a8.js

308 ms

ember_jquery-995fa9bf31464532692332d4a5c85988ebb80637550b8cd00f07d8953c4e46e5.js

704 ms

vendor-a520d2facd37b23a6fce06beaf5feaa3034f761d5b4f37c89c4cecd3ead14192.js

526 ms

Our browser made a total of 72 requests to load all elements on the main page. We found that 99% of them (71 requests) were addressed to the original Root-forum.cern.ch, 1% (1 request) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Root-forum.cern.ch.

Page Optimization Overview & Recommendations

Page size can be reduced by 540.9 kB (81%)

Content Size

670.4 kB

After Optimization

129.5 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Root-forum.cern.ch main page is 670.4 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. 50% of websites need less resources to load. CSS take 354.8 kB which makes up the majority of the site volume.

HTML Optimization

-89%

Potential reduce by 250.7 kB

  • Original 280.2 kB
  • After minification 248.8 kB
  • After compression 29.6 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 31.5 kB, which is 11% 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 250.7 kB or 89% of the original size.

Image Optimization

-0%

Potential reduce by 0 B

  • Original 9.7 kB
  • After minification 9.7 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. ROOT Forum Cern images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 2.7 kB

  • Original 25.7 kB
  • After minification 25.1 kB
  • After compression 23.0 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

-81%

Potential reduce by 287.5 kB

  • Original 354.8 kB
  • After minification 351.7 kB
  • After compression 67.2 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. Root-forum.cern.ch needs all CSS files to be minified and compressed as it can save up to 287.5 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 57 (80%)

Requests Now

71

After Optimization

14

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 71 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ROOT Forum Cern. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 21 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

root-forum.cern.ch

root-forum.cern.ch

730 ms

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102 ms

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308 ms

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704 ms

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513 ms

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1198 ms

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607 ms

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611 ms

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624 ms

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623 ms

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1179 ms

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1180 ms

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1179 ms

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1172 ms

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1173 ms

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1173 ms

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1176 ms

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1179 ms

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1179 ms

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1769 ms

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Accessibility Review

root-forum.cern.ch accessibility score

96

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

root-forum.cern.ch 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

High

Page has valid source maps

SEO Factors

root-forum.cern.ch 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 Root-forum.cern.ch 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 Root-forum.cern.ch 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

root-forum.cern.ch

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