mod_jk icon

Websites using 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.

Lead List Exporter

7.6k live mod_jk sites, ready to export.

That's how many mod_jk websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.

Pick a ready-made template, or build your own filters in the Lead List Exporter and pay only for the rows you export.

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mod_jk companies in South Korea

Every mod_jk website we detected in South Korea.

Companies with personnel emails

Only sites where a personal, company-hosted email was found.

Decision makers on LinkedIn

Sites with at least one personnel LinkedIn profile.

Top 100,000 mod_jk sites by traffic

Start with the highest-traffic end of the dataset.

Sites on a .com domain

Limit results to mod_jk websites on .com domains.

Companies with phone numbers

Only sites where an organisation phone number was found.

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Versions

Which mod_jk versions are most used?

We could read a version number on 99% of mod_jk sites. Of those, the most common is mod_jk 1, on 7,565 sites.

100% on v1
Versions detected
1
Sites with a version
7,565
Live Websites

Websites Using mod_jk

A sample of live mod_jk sites from our latest crawl, with the other technologies each one runs.

Open in the Lead List Exporter
DomainAlso runsCrawl Date
djkids.or.kr
Apache HTTP ServerJavaUNIXOpenSSLApache Tomcat
September 27, 2026
crescita-personale.it
jQueryApache HTTP ServerBootstrapGoogle Tag ManagerreCAPTCHA
September 27, 2026
industryintel.com
Apache HTTP ServerGoogle AnalyticsGoogle Tag ManagerreCAPTCHAOpenSSL
September 26, 2026
taxnara.co.kr
PHPApache HTTP ServerUNIXOpenSSLApache Tomcat
September 26, 2026
pzzl.com
jQueryPHPMySQLWordPressHSTS
September 26, 2026
100ksw.com
jQueryApache HTTP ServerBootstrapModernizrWindows Server
September 26, 2026
zkh-plus.com.ua
Apache HTTP ServerUNIXOpenSSLApache Tomcat
September 25, 2026
yicf.or.kr
Apache HTTP ServerOpenSSLApache Tomcat
September 25, 2026
woori-ps.com
jQueryApache HTTP ServerGoogle AnalyticsSlickYouTube
September 25, 2026
visaforkorea-mn.com
jQueryApache HTTP ServerjQuery UIJavaOpenSSL
September 25, 2026

How many websites use mod_jk?

We found mod_jk on 7,651 websites in our September 2026 crawl, across 89 countries.

Which countries use mod_jk the most?

By number of websites, the top countries are South Korea (30%, 2,259 sites), United States (12%, 950 sites), Canada (12%, 942 sites), Italy (6%, 444 sites) and China (5%, 384 sites). Together they account for 65% of the 7,651 mod_jk sites we track. 32% of the sites are in English, and .com is the most used domain ending, on 41% of them.

Where are mod_jk websites hosted?

The networks carrying the most mod_jk sites are Beanfield Technologies Inc. (853 sites), Korea Telecom (840 sites) and Amazon.com, Inc. (625 sites).

What technologies are used with mod_jk?

Across the 7,651 mod_jk sites we track, the technologies most often found alongside it are Apache HTTP Server (100%, 7,651 sites), Apache Tomcat (100%, 7,651 sites), OpenSSL (83%, 6,337 sites), jQuery (74%, 5,681 sites) and Java (52%, 3,980 sites).

Deep Dive

Breakdown of mod_jk websites

What else they run, plus their language, hosting network, domain extension and country.

Same category

Other technologies in Web server extensions

Web server extensions technologies run on 0.95% of the websites we track. mod_jk ranks #7 of 14, on 1.58% of Web server extensions sites.

All Web server extensions technologies

FAQ

Answers drawn from our latest crawl of mod_jk websites. Anything else, email us and we will look it up.

Through our own crawl, which checks each site's HTML, scripts and headers rather than relying on self-reported data.