mod_jk

Web server extensions Visit tomcat.apache.org

Mod_jk is an Apache module used to connect the Tomcat servlet container with web servers such as Apache, iPlanet, Sun ONE (formerly Netscape) and even IIS using the Apache JServ Protocol. A web server waits for client HTTP requests.

Websites using mod_jk

These are the top websites using mod_jk based on traffic.

# Website Traffic
1 geonames.org
9%
2 s2m.net.ma
3%
3 cambridge.org
2%
4 unimi.it
2%
5 udngroup.com
1%
6 freedomain.one
1%
7 linodeusercontent.com
1%
8 nstc.gov.tw
1%
9 academusoft.uts.edu.co
1%
10 uniajc.edu.co
1%

Get the full list of websites and companies using mod_jk.

mod_jk reports

Create relevant reports for mod_jk to find sales leads or learn more about your target audience.

Example reports
mod_jk websites in the United States
mod_jk websites in the United Kindom
Email addresses and phone numbers of mod_jk customers
mod_jk websites with a .com domain
Top 5,000 most visited mod_jk websites
5,000 low-traffic mod_jk websites
Top 500 websites for every technology in the category Web server extensions

Or, Create a custom mod_jk report.

mod_jk usage trend

This graph shows the growth of mod_jk since July 2020.

mod_jk demographics

A breakdown of countries and languages used by mod_jk websites.

Countries
Languages

Alternatives to mod_jk

These are the most popular mod_jk alternatives in 2025.

# Technology Compare
1
OpenSSL		 mod_jk vs. OpenSSL
2
Google PageSpeed		 mod_jk vs. Google PageSpeed
3
mod_perl		 mod_jk vs. mod_perl
4
mod_ssl		 mod_jk vs. mod_ssl
5
mod_wsgi		 mod_jk vs. mod_wsgi

See the full list of mod_jk alternatives.

Apps

Wappalyzer works with the tools you use every day.

Chrome

See the technologies of websites you visit in your browser.

Firefox

See the technologies of websites you visit in your browser.

Edge

See the technologies of websites you visit in your browser.

Safari

See the technologies of websites you visit in your browser.

Salesforce

See the technology stacks of your leads in your CRM.

HubSpot

See the technology stacks of your leads in your CRM.

Pipedrive

See the technology stacks of your leads in your CRM.

Semrush

See the technology stacks of your clients and prospects in your CRM.

Pabbly

Automated workflows and email marketing.

Zapier

Connect Wappalyzer to the apps you use, no code required.

Make

Connect Wappalyzer to the apps you use, no code required.

Gmail

See the technology stacks of your contacts in Gmail.

iPhone

Wappalyzer in your pocket.

Wappalyzer is trusted by thousands of professionals world-wide

Wappalyzer has proven to be a great tool to help us break down the aggregate analysis of how the web is doing by various technologies. Ilya Grigorik
Principal Engineer at Shopify
These days you need advanced marketing tools to stand out from the competition. Wappalyzer help us do just that. Thomas Alibert
Growth Engineer at PayFit
I use Wappalyzer all the time and it's been invaluable in being relevant in my outreach. Michael Petselas
Customer Growth Specialist at HubSpot
Wappalyzer is an integral part of our sales process, enabling us to optimise lead segmentation at scale. It’s a total game changer for our organisation. Roman Schweiger
Head of Business Development at Boomerank
Wappalyzer has been such a useful part of the HTTP Archive dataset. It's enabled us to slice the data in new ways and discover more interesting insights about the state of the web. Rick Viscomi
Senior DevRel Engineer at Google
Wappalyzer is helping our sales teams to understand prospects better and faster by having a clear view on their tech stack. Rabin Nuchtabek
Chief Growth Engineer at Skedify

Subscribe to receive occasional product updates.