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Whois & Analysis for

Dec 26, 2019 7:53 am UTC


The owner has chosen to keep his whois contact information private.
Desktop screen Desktop screenshot for

8 criteria passed
3 criteria to solve


Make your meta description eloquent and appealing, neither too short nor too long.
Consider adding a robots.txt file in your web server's root directory.


• Domain Owner
• Category
Science  >  Physics
• Alexa Rank
#16.502, is in the world's top 20.000 websites!


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Redirection redirects to
SSL Certificate
This website is not SSL secured (HTTPS), the certificate issued by COMODO CA Limited has expired on February 6, 2020.
Title Tag
Home | CERN
Length: 11 (recommended: 10 to 70)
Meta Description
CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works.
Length: 233 (recommended: 50 to 160)
Google preview
Desktop Version

Home | CERN

CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific research. Its business is fundamental p...

Mobile Version

Home | CERN

CERN, the European Organization for Nuclear Research, is one of the world’s largest and most respected centres for scientific rese...

Great, language/character encoding is specified: utf-8
Hreflang Tags
Alternate URL Hreflang en fr
URL Resolve

Great, a redirect is in place to redirect traffic from your non-preferred domain. All versions of your page point to the same URL.

No robots.txt file was found on this page.
URL Parameters
Great, the domain URLs look clean.
Attribute Value
viewport width=device-width, initial-scale=1.0


The owner has associated the following topics to the website.

The results of our semantic analysis are shown below using the website's language.

They are the main concepts covered by

Each concept has a confidence score. The higher it is, the more important the topic is relative to the page.

CERN Confidence: 90% Arrow up

The European Organization for Nuclear Research (French: Organisation européenne pour la recherche nucléaire), known as CERN (derived from the name "Conseil Européen pour la Recherche Nucléaire"; see ), is a European research organization that operates the largest particle physics laboratory in the world.

Established in 1954, the organization is based in a northwest suburb of Geneva on the Franco–Swiss border, and has 22 .

Israel is the only non-European country granted full membership.

Physics Confidence: 74% Arrow up

Physics (from, from phúsis "nature") is the natural science that involves the study of matter and its motion and behavior through space and time, along with related concepts such as energy and force.

One of the most fundamental scientific disciplines, the main goal of physics is to understand how the universe behaves.

Universe Confidence: 68% Arrow up

The Universe is all of time and space and its contents.

It includes planets, moons, minor planets, stars, galaxies, the contents of intergalactic space, and all matter and energy.

The size of the entire Universe is unknown.

Scientific method Confidence: 67% Arrow

WEBSITE SPEED website speed is slow. Page speed is important for visitors and search engines.

Get insights to improve your page loading time.

Page Loading Time


This domain loads at the median speed of 0.9 seconds.

Speed Percentile

83% is faster than approximately 83 percent of the web. Your website page speed needs to be as fast as you can make it, without compromising the customer experience.

A good goal to achieve is a loading time of 2 seconds on desktop and mobile devices.


Page on which speed is tested live:

Chrome User Experience Report Results

Lighthouse Results


This website is ranked #16.502 by Alexa.

This rank is traffic based. The lower the rank is, the better the domain is ranked.

Daily visitors by country

  • daily visitors distribution - Total: 17 countries
  • Flag for IndiaIndia (15.3%)
  • Flag for United States of AmericaUnited States of America (8.7%)
  • Flag for SwitzerlandSwitzerland (16.0%)
  • Flag for ChinaChina (10.5%)
  • Flag for ChinaChina (25.7%)
  • Flaf icon for other countryOthers (23.8%)

Traffic country ranks

Country Rank
Flag for IndiaIndia #11.918
Flag for IndonesiaIndonesia #29.157
Flag for EgyptEgypt #22.868
Flag for TurkeyTurkey #23.443
Flag for MalaysiaMalaysia #13.542


Doctype HTML5 Arrow Responsive website, mobile-friendly. Arrow

Mobile Rendering

This website seems to be optimized for Mobile Visitors.

How looks like on a mobile device such as an iPhone.

How looks like on a tablet such as an iPad.

Main colors used

These are the main HTML color codes used by this website. Arrow
  • 15% #303030
  • 12% #808080
  • 12% #302010
  • 10% #202020
  • 7% #307090
  • 6% #403010
  • 6% #707080
  • 5% #506070
  • 5% #909090
  • 4% #504020
  • 4% #8090a0
  • 3% #205070

Text/code ratio's text/code ratio is 3.96%. It's a bit low. Consider raising it by adding more text content of value for your visitors, or keeping your code clean.
Text / Code Ratio 3.96%

A good text to HTML ratio is anywhere from 25 to 70%.

This percentage refers to the visible text ratio, as opposed to HTML elements, image tags and other non-visible information.

Main HTML tags

Headings Arrow up

Great, we found headings on this page.

  • <H1> 6
  • <H2> 6
  • <H3> 34
  • <H4> 0
  • <H5> 0
  • <H6> 0
Top level heading
Cern accelerating science
Featured resources
Latest news
Explore cern
Upcoming events
2nd level heading
What is the universe made of?
Find us
Cern & you

For a better readability, only the first 20 <H3> tags are shown below.

3rd level heading
Na61/shıne gives neutrino experiments a helpi... (2)
Probing dark matter using antimatter
Ls2 report: lhcb looks to the future with sci...
Ls2 report: the ps is rejuvenated for its 60t...
Cern courier nov/dec 2019
Alt attributes Arrow up

We found 2 images on this website.
Great, 0 ALT attributes are missing on your image tags.


This is an overview of your homepage shares on social networks.

You have a relatively high presence on social media, keep going!

The more people share your website, the more likely you will get links from others, which is a key point when it comes to improving your overall search engine rankings.

  • Facebook iconFacebook
  • Total Engagement 8.837
  • Likes 3.717
  • Shares 3.763
  • Comments 1.357


Server map
  • Service Provider (ISP)
  • IP Address
  • Country
  • Flag for SwitzerlandSwitzerland
  • Region
  • Geneva , Geneva
  • Latitude and Longitude
  • 46.2054 : 6.1459