EPiServer

Category - CMS, Ecommerce

Episerver is an online, commercial website creation tool and one of the most powerful website content management systems (CMS) in existence today.


We have discovered  7,680 live websites   are using EPiServer.

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Technology usage statistics

Websites using EPiServer:7,680 websites
Most popular in: Sweden
Market position in CMS category:#106
Market share in CMS:less than 0.1%
Most popular version:13.6.1

Security vulnerabilites

Known security issues associated with EPiServer
PublishedCVETitleDomains
Mar, 2021CVE-2020-24550An Open Redirect vulnerability in EpiServer Find before 13.2.7 allows an attacker to redirect users ...10
Jan, 2025CVE-2025-22388An issue was discovered in Optimizely EPiServer.CMS.Core before 12.22.0. A high-severity Stored Cros...3
Jan, 2025CVE-2025-22389An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. A medium-severity vulnerabi...3
Jan, 2025CVE-2025-22390An issue was discovered in Optimizely EPiServer.CMS.Core before 12.32.0. A medium-severity vulnerabi...3
Jul, 2025CVE-2025-27800Stored Cross-Site Scripting in Episerver Content Management System (CMS) Admin Dashboard2
Jul, 2025CVE-2025-27801Stored Cross-Site Scripting in Episerver Content Management System (CMS) Media Selection Preview2
Jul, 2025CVE-2025-27802Stored Cross-Site Scripting in Episerver Content Management System (CMS) Edit Preview2
Oct, 2018CVE-2018-12596Episerver Ektron CMS before 9.0 SP3 Site CU 31, 9.1 before SP3 Site CU 45, or 9.2 before SP2 Site CU...1

Technology adoption

Recent changes in EPiServer usage.
Websites that added EPiServer 476
Websites that dropped EPiServer 256
Websites that changed version of EPiServer  959

Available Reports


Alternative Names

  • EPiServer CMS
  • Optimizely CMS
  • Optimizely Commerce

Technology Information


Major Versions

  • 13.xx (5 subversions, 1,211 domains)

Website Distribution by Country

Number of websites using EPiServer
United States1,450 websites


Sweden4,904 websites
Netherlands212 websites
Norway209 websites
GB149 websites
Australia111 websites
Canada87 websites
Denmark82 websites
Switzerland76 websites
Finland75 websites

Website Distribution by TLD

Number of websites using EPiServer
.com2,183 websites
.se1,178 websites
.no716 websites
.org305 websites
.fi284 websites
.com.au263 websites
.co.uk240 websites
.dk209 websites
.nl192 websites
.de174 websites

EPiServer Versions

sorted by popularity
13.6.11,202 websites
13.2.23 websites
13.4.72 websites
13.5.72 websites
13.5.82 websites

See all EPiServer versions ...

Top Websites Using EPiServer

A look at the most popular websites built with EPiServer
DomainCountryRankContacts
ofcom.org.uk Sweden3,709
optimizely.com Sweden3,749
sanoma.com United States4,739
iata.org United States4,764
aap.org United States6,183
bain.com United States6,677
See full domain list

Always Used together


Microsoft ASP.NET: Total 3,028,902 domains found using Microsoft ASP.NET
Category - Web Application Frameworks. 5,133,932 domains found using Web Application Frameworks

Alternative Technologies


WordPress: Total 13,095,967 domains found using WordPress
Wix: Total 1,924,197 domains found using Wix
Squarespace: Total 1,798,521 domains found using Squarespace
Joomla: Total 752,485 domains found using Joomla
GoDaddy Website Builder: Total 462,300 domains found using GoDaddy Website Builder
Duda: Total 366,083 domains found using Duda
Weebly: Total 336,219 domains found using Weebly
Tumblr: Total 282,435 domains found using Tumblr
Drupal: Total 266,670 domains found using Drupal
Jimdo: Total 238,270 domains found using Jimdo

FAQ

EPiServer falls under the categories of Content Management System, and Ecommerce.
WebTechSurvey systematically indexes websites and their technologies. Users can find websites using EPiServer through the WebTechSurvey platform.
There are currently 59,130,664 live websites that use EPiServer.
The main competitors to EPiServer include WordPress, Wix, Squarespace, and Joomla.
EPiServer has a known security vulnerabilities: CVE-2025-27800, CVE-2025-27801, CVE-2025-27802, and CVE-2025-22388.