Open CMS

OpenCms, the Open Source Java Web Content Management System

Market Share By Site Popularity

The market share for Open CMS decreased by 0.523 percentage points for Most Popular Sites, more than any other segment during the same period of time.

Alexa RankCMS RankMarket ShareMarket Share Change
Most Popular Sites < 1,000#1170.171%-75.36%
Very Popular Sites < 10,000#690.326% 14.39%
Popular Sites < 100,000#850.126% 48.24%
Less Popular Sites < 1,000,000#1190.036% 50%
All Sites#1640.020%-16.67%

Market Share History

This chart shows the history of detected websites using Open CMS.  
In the last 6 months, market share has decreased 16.67% from 0.024% to 0.020%

CMS Versions: Major

Percentage of detected CMS versions

Major VersionPercent
Version 943.48%
Version 1056.52%

CMS Versions: Minor

Minor VersionPercent
Version 9.543.48%
Version 10.556.52%

Top Level Domains

Websites using Open CMS were found on 65 top level domains

Top Level DomainsPercent
Germany (.de)24.05%
Commercial (.com)19.75%
Spain (.es)12.88%
Austria (.at)7.485%
Italy (.it)7.362%
Organization (.org)2.699%
Russia (.ru)1.840%
Brazil (.br)1.718%
Czech Republic (.cz)1.595%
Switzerland (.ch)1.227%
European Union (.eu)1.227%
Taiwan (Republic of China) (.tw)0.982%
Network (.net)0.982%
Canada (.ca)0.859%
Chile (.cl)0.859%
Australia (.au)0.736%
Greece (.gr)0.736%
Denmark (.dk)0.613%
Belarus (.by)0.613%
Belgium (.be)0.613%
Info (.info)0.613%
India (.in)0.613%
France (.fr)0.613%
Mexico (.mx)0.491%
Ireland (.ie)0.491%
Portugal (.pt)0.491%
Vietnam (.vn)0.491%
China (.cn)0.491%
Romania (.ro)0.368%
Hong Kong (.hk)0.368%
Coop (.coop)0.368%
Asia (.asia)0.245%
Columbia (.co)0.245%
Liechtenstein (.li)0.245%
Japan (.jp)0.245%
Norway (.no)0.245%
Kenya (.ke)0.245%
Singapore (.sg)0.245%
Netherlands (.nl)0.245%
Malaysia (.my)0.245%
Education (.edu)0.245%
Argentina (.ar)0.245%
Government (.gov)0.245%
Slovakia (.sk)0.245%
Kazakhstan (.kz)0.123%
United Kingdom (.uk)0.123% (
Bulgaria (.bg)0.123%
British Indian Ocean Territory (.io)0.123%
Ukraine (.ua)0.123%
United Arab Emirates (.ae)0.123%
Cambodia (.kh)0.123%
Tuvalu (.tv)0.123%
Sweden (.se)0.123%
Poland (.pl)0.123%
United States of America (.us)0.123%
Hungary (.hu)0.123%
Guinea (.gn)0.123%
Philippines (.ph)0.123%
Cat (.cat)0.123%
Indonesia (.id)0.123%
Uganda (.ug)0.123%
Niue (.nu)0.123%
Thailand (.th)0.123%
Morocco (.ma)0.123%

Popular Sites Using Open CMS

We detected the following sites were using Open CMS

How We Detect Installations of Open CMS


A CMS will sometimes include a meta tag within the html of each page. This is usually a "generator" tag like <meta name="generator" content="What CMS" /> but could also be "application-name", "Powered-By" or anyting else the CMS creators decide to use.


HTTP headers can provide some of the best clues about a site's CMS. The values of set-cookie and x-powered-by headers are the most common and easiest to find.


If a CMS doesn't have meta tags, it will often have other uniquely identifiable html markup. This can range from unique html comments, ids or classes.

Let us know if you know how we can better detect Open CMS

Compare Open CMS

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