Open CMS

OpenCms from Alkacon Software, the open source content management system (CMS) based on Java and XML for public internet website, extranet or intranet.

Other CMS / CMS

Top 1M Market Share

Market Share By Site Popularity

The market share for decreased by 0.01 percentage points for Very Popular Sites, more than any other segment during the same period of time.

Alexa RankWebsitesMarket ShareMarket Share Change
Most Popular Sites < 1,00010.100%0%
Very Popular Sites < 10,000100.100% -9.09%
Popular Sites < 100,000470.047% -2.08%
Less Popular Sites < 1,000,0001740.017%0%
All Sites1,3360.009% -10%

Market Share History

This chart shows the history of detected websites using .  
In the last 6 months, market share has decreased 10.00% from 0.010% to 0.009%

CMS Versions: Major

Percentage of detected CMS versions

Major VersionPercent
Version 9100.00%

CMS Versions: Minor

Minor VersionPercent
Version 9.5100.00%

Top Level Domains

Websites using were found on 68 top level domains

Top Level DomainsPercent
Germany (.de)27.40%
Spain (.es)24.01%
Commercial (.com)15.56%
Italy (.it)6.374%
Austria (.at)2.897%
Organization (.org)2.815%
Australia (.au)1.573%
European Union (.eu)1.242%
Russia (.ru)1.242%
Czech Republic (.cz)1.159%
Network (.net)1.076%
Brazil (.br)0.993%
Switzerland (.ch)0.828%
Taiwan (Republic of China) (.tw)0.828%
Cat (.cat)0.662%
China (.cn)0.579%
Chile (.cl)0.579%
France (.fr)0.497%
Mexico (.mx)0.414%
Greece (.gr)0.414%
Denmark (.dk)0.414%
Norway (.no)0.414%
Japan (.jp)0.414%
New Zealand (.nz)0.414%
Hong Kong (.hk)0.331%
Romania (.ro)0.331%
Belarus (.by)0.331%
Ireland (.ie)0.331%
Info (.info)0.331%
Canada (.ca)0.331%
Portugal (.pt)0.331%
India (.in)0.331%
Liechtenstein (.li)0.248%
Netherlands (.nl)0.248%
Columbia (.co)0.248%
Argentina (.ar)0.248%
Belgium (.be)0.166%
Asia (.asia)0.166%
Tanzania (.tz)0.166%
Kenya (.ke)0.166%
United Arab Emirates (.ae)0.166%
South Africa (.za)0.166%
Poland (.pl)0.166%
Slovakia (.sk)0.166%
Vietnam (.vn)0.166%
Malaysia (.my)0.166%
Education (.edu)0.166%
Cambodia (.kh)0.083%
Macau (.mo)0.083%
Burma (Union of Myanmar) (.mm)0.083%
Laos (.la)0.083%
Peru (.pe)0.083%
United Kingdom (.uk)0.083% (
Bulgaria (.bg)0.083%
Ukraine (.ua)0.083%
Indonesia (.id)0.083%
Kazakhstan (.kz)0.083%
Coop (.coop)0.083%
United States of America (.us)0.083%
Sweden (.se)0.083%
Philippines (.ph)0.083%
Serbia (.rs)0.083%
Uganda (.ug)0.083%
Niue (.nu)0.083%
Thailand (.th)0.083%
Government (.gov)0.083%
British Indian Ocean Territory (.io)0.083%

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.


In addition to detecting the CMS, in some cases we are able to accurately detect which version of the CMS is being used.


Open CMS depends on 1 technology


0 technologies depend on Open CMS

Dedicated Content Management System Detection