Serendipity is a PHP-powered weblog engine giving users an easy way to maintain a blog and developers a framework with the power for professional applications.

Market Share By Site Popularity

With a 0.019 percentage point decrease since 2020-03-29, the detection rating for Serendipity has fallen the most amongst Very Popular Sites.

Alexa RankCMS RankMarket ShareMarket Share Change
Most Popular Sites < 1,000n/an/a0%
Very Popular Sites < 10,000n/an/a -100%
Popular Sites < 100,000#3460.002% -50%
Less Popular Sites < 1,000,000#4040.001%0%
All Sites#4070.001% -50%

Market Share History

This chart shows the history of detected websites using Serendipity.  
In the last 6 months, market share has decreased 50.00% from 0.002% to 0.001%

CMS Versions: Major

Percentage of detected CMS versions

Major VersionPercent
Version 281.37%
Version 118.63%

CMS Versions: Minor

Minor VersionPercent
Version 2.41.961%
Version 2.361.76%
Version 2.19.804%
Version 2.07.843%
Version 1.71.961%
Version 1.67.843%
Version 1.58.824%

Top Level Domains

Websites using Serendipity were found on 9 top level domains

Top Level DomainsPercent
Germany (.de)40.28%
Commercial (.com)27.78%
Austria (.at)11.11%
Organization (.org)6.944%
Network (.net)5.556%
Netherlands (.nl)2.778%
Info (.info)2.778%
Poland (.pl)1.389%
Montenegro (.me)1.389%

Popular Sites Using Serendipity

We detected the following sites were using Serendipity

How We Detect Installations of Serendipity


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.


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.

Let us know if you know how we can better detect Serendipity

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