Category - Web Server Extensions

mod_jk is an Apache module used to connect the Tomcat servlet container with web servers such as Apache, iPlanet, Sun ONE using the Apache JServ Protocol.

We have discovered 5,848 live website that are using mod_jk.

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Technology usage statistics

Websites using mod_jk 5,848 websites
Most popular in the country United States of America
Market position in Web Server Extensions #10
Market share in Web Server Extensions 1.48%
Most popular version 1.2.41

Technology adoption

Recent changes in mod_jk usage. (See mod_jk Usage Changes report)
Websites that added mod_jk +120
Websites that dropped mod_jk -172
Websites that changed version of mod_jk 18

Distribution by websites popularity

mod_jk detection in the top websites by popularity
Top 10k sites 7 websites
Top 100k sites 45 websites
Top 1m sites 1,072 websites

Websites utilizing mod_jk

Top websites that use mod_jk

Domain Country Rank Contacts United States of America 516 United States of America 3,359 United States of America 4,186 United States of America 4,186 United States of America 4,456 United States of America 5,524
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Market Share

mod_jk market share within the Web Server Extensions category

Geographical Distribution

Technology usage distribution by websites across the globe.


(Ordered by popularity)
  • 1.2.41 (18.67%)
  • 1.2.46 (17.19%)
  • 1.2.40 (15.81%)
  • 1.2.37 (11.27%)
  • 1.2.42 (10.35%)
  • 1.2.48 (4.83%)
  • 1.2.43 (3.08%)
  • 1.2.32 (2.74%)
  • 1.2.26 (2.29%)
  • 1.2.28 (2.25%)

See all 37 versions ...

mod_jk often used together with

Category - Web Servers.
Apache is used together with mod_jk on 6,037 domains. Total 3,726,942 domains found using Apache
Category - Programming Languages.
Java is used together with mod_jk on 5,859 domains. Total 260,072 domains found using Java
Category - Web Servers.
Apache Tomcat is used together with mod_jk on 5,858 domains. Total 31,087 domains found using Apache Tomcat
Category - Web Server Extensions.
OpenSSL is used together with mod_jk on 4,891 domains. Total 198,403 domains found using OpenSSL
Category - Document Encoding.
UTF-8 is used together with mod_jk on 3,889 domains. Total 8,085,874 domains found using UTF-8
Category - Document Standards.
JavaScript is used together with mod_jk on 3,346 domains. Total 6,112,271 domains found using JavaScript

Alternative Technologies

BytesLog: Total 140 domains found using BytesLog
mod_accel: Total 16 domains found using mod_accel
mod_apreq2: Total 1,831 domains found using mod_apreq2
mod_auth_kerb: Total 868 domains found using mod_auth_kerb
mod_auth_pam: Total 516 domains found using mod_auth_pam
mod_auth_passthrough: Total 1,113 domains found using mod_auth_passthrough
mod_auth_pgsql: Total 374 domains found using mod_auth_pgsql
mod_bwlimited: Total 27,987 domains found using mod_bwlimited
mod_chroot: Total 53 domains found using mod_chroot
mod_dav: Total 9,707 domains found using mod_dav