Analyze

aliceinfo.cern.ch: Welcome to the ALICE collaboration | ALICE Collaboration

Page load speed analysis

  • 58/100

    Normal result
  • 7

    Successful tests
  • 1

    Failed test
  • First response

    517 ms

  • Resources loaded

    11.3 sec

  • Page rendered

    336 ms

  • Total page load time

    12.2 sec

Click here to check amazing ALICE Info Cern content for France. Otherwise, check out these important facts you probably never knew about aliceinfo.cern.ch

We analyzed Aliceinfo.cern.ch page load time and found that the first response time was 517 ms and then it took 11.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Page optimization

  • HTML 67.8 kB
    Images 1.4 MB
    Javascripts 547.9 kB
    CSS 68.8 kB

    In fact, the total size of Aliceinfo.cern.ch main page is 2.1 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. 40% of websites need less resources to load. Images take 1.4 MB which makes up the majority of the site volume.

    • Original 67.8 kB
    • After minification 64.3 kB
    • After compression 13.2 kB

    HTML optimization

    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 54.6 kB or 81% of the original size.

    • Original 1.4 MB
    • After optimization 1.4 MB

    Image optimization

    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. ALICE Info Cern images are well optimized though.

    • Original 547.9 kB
    • After minification 531.2 kB
    • After compression 165.3 kB

    JavaScript optimization

    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 382.6 kB or 70% of the original size.

    • Original 68.8 kB
    • After minification 67.2 kB
    • After compression 15.1 kB

    CSS optimization

    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. Aliceinfo.cern.ch needs all CSS files to be minified and compressed as it can save up to 53.7 kB or 78% of the original size.

Network requests diagram

  • aliceinfo.cern.ch
  • alice-collaboration.web.cern.ch
  • css_ywqYrtSodM0qVMzAkOSnqZ_iBnAVpkSeD_yPtUN9tBk.css
  • css_ur_FZkACTTDzuT5S4rdswwhlU_KXO4jja3zOoYjkDgw.css
  • css_i2tt-T0u1RImDZRf4tv2dVuAq5-04_b9Xv_ez3QiGtk.css
  • PTSansWeb.css
  • css_g9eJET_QLncO1_tLtHruWozPRxx03lrdBXyecNOo6Fo.css
  • css_Px_DPWwbo1Dyv9hDjTumJlD0BulUyHm3N-kVF_Z8owk.css
  • jquery.js
  • jquery.once.js
  • drupal.js
  • shCore.js
  • shAutoloader.js
  • cern_dev_status.js
  • mathjax.js
  • MathJax.js
  • cern.js
  • script.js
  • ckeditor_syntaxhighlighter_autoloader.js
  • css_i0sYiRb2G5IvzoKplbGV65FyzD9xjuvVGqJpatYCGC0.css
  • TeX-AMS-MML_HTMLorMML.js
  • LRsaba_CERN_0212_00656.jpg
  • ALICE_Color_Logo_DB.png
  • alice-detector.png
  • outline_80_white.png
  • cern-logo-large.png
  • PTS55F_W.woff
  • PTS75F_W.woff
  • PTC75F_W.woff
  • PTC55F_W.woff
  • jax.js
  • fontdata.js
  • MathJax_Main-Regular.woff
  • MathJax_Main-Bold.woff
  • MathJax_Math-Italic.woff
  • MathJax_Size1-Regular.woff

Our browser made a total of 36 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Aliceinfo.cern.ch, 61% (22 requests) were made to Alice-collaboration.web.cern.ch and 22% (8 requests) were made to Cdn.mathjax.org. The less responsive or slowest element that took the longest time to load (8.9 sec) relates to the external source Alice-collaboration.web.cern.ch.

Additional info on aliceinfo.cern.ch

Requests

The browser has sent 26 CSS, Javascripts, AJAX and image requests in order to completely render the main page of ALICE Info 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 14 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

14

Javascripts

5

Images

7

CSS

26

All

Possible request optimization

1

Javascripts

5

Images

1

CSS

19

Optimized

7

All

Normal result

Redirects

As for redirects, our browser was forwarded to http://alice-collaboration.web.cern.ch/ before it reached this domain.

IP address

Aliceinfo.cern.ch uses IP address which is currently shared with 1 other domain. The more sites share the same IP address, the higher the host server’s workload is. It is strongly recommended that the host server should be changed or the hosting provider should be requested to give a different (separate) IP address for this domain.

Normal result

IP Trace

aliceinfo.cern.ch

aliweb.cern.ch

137.138.47.213

DNS records

Type Host Target/ip TTL Other
A

pcaliweb02.cern.ch

137.138.47.213 10800
CNAME

aliceinfo.cern.ch

pcaliweb02.cern.ch 300
MX

pcaliweb02.cern.ch

cern-ch.mail.protection.outlook.com 600 Pri: 10
AAAA

pcaliweb02.cern.ch

300 Ipv6: 2001:1458:201:b50e::100:3a

Language and encoding

Good result

Language

EN en language flag

Detected

EN en language flag

Claimed

Encoding

UTF-8

Claimed

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Aliceinfo.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 Aliceinfo.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.

HTTPS certificate

SSL Certificate

Aliceinfo.cern.ch has no SSL certificate. Web browsing can be safer with HTTPS connection, so we suggest that it should be obtained for this site.

Normal result

Visitor World Map

Country of origin for 24.6% of all visits is France. It lies approximately 190 miles away from the server location (Switzerland) and such a small distance can positively affect website speed, as data can travel really fast between those locations.

Good result

Poor result

Social Sharing Optimization

Open Graph description is not detected on the main page of ALICE Info Cern. 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:

aliceinfo.cern.ch

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