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vJUG - The World's First Virtual Java User Group — 18 websites ranked by shared content topics, category and on-page relevance.

Each result shows its full tech stack, contacts and AI-policy — not just a name · Browse all sites in Programming Languages →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
barcelonajug.org ↗	70 match 1 shared topics	Barcelona Java User Group	en	programming-languages	robotsllmsaihumans	emailphone	none
howtopython.org ↗	65 match 1 shared topics	How To Python - Explore the World of Python Programming	en	programming-languages WordPress	robotsllmsaihumans	emailphone	none
essentials4j.org ↗	64 match 1 shared topics	essentials4j - the perfect library for every Java 8 project!	en	programming-languages	robotsllmsaihumans	emailphone	none
virtala.dev ↗	64 match 1 shared topics	Janne Virtala	en	programming-languages	robotsllmsaihumans	emailphone	none
databasechallenges.com ↗	64 match 1 shared topics	DatabaseChallenges.com — Take the Challenge	en	programming-languages	robotsllmsaihumans	emailphone	none
databasechallenge.com ↗	64 match 1 shared topics	DatabaseChallenge.com — Take the Challenge	en	programming-languages	robotsllmsaihumans	emailphone	none
vision-maps.com ↗	64 match 1 shared topics	Effective Java 3rd Edition - Key Principles	en	programming-languages	robotsllmsaihumans	emailphone	none
helloworldopen.com ↗	64 match 1 shared topics	Hello World Open - The Coding World Championships	en	programming-languages	robotsllmsaihumans	emailphone	none
dartw.com ↗	64 match 1 shared topics	The Constructive Irritant – Presenting my perspective on the world and our place in it.	en	programming-languages WordPress	robotsllmsaihumans	emailphone	none
7php.com ↗	64 match 1 shared topics	7PHP - The PHPeople Matters	en	programming-languages WordPress	robotsllmsaihumans	emailphone	none
vivalaprogramacion.com ↗	64 match 1 shared topics	Viva La Programación - The Revolutionary Code Movement	en	programming-languages	robotsllmsaihumans	emailphone	none
booleanworld.com ↗	63 match 1 shared topics	Boolean World	en	programming-languages WordPress	robotsllmsaihumans	emailphone	none
cyber-warrior.pro ↗	63 match 1 shared topics	HKNX \| Indie iOS Developer Building FelekQuiz, MindVora & Fun World	en	programming-languages	robotsllmsaihumans	emailphone	partial · 8
oneforthecode.com ↗	63 match 1 shared topics	One For The Code	en	programming-languages	robotsllmsaihumans	emailphone	none
howtojava.net ↗	63 match 1 shared topics	How To Java	en	programming-languages	robotsllmsaihumans	emailphone	none
1px.dev ↗	63 match 1 shared topics	@p7g world	en	programming-languages	robotsllmsaihumans	emailphone	none
onjava8.com ↗	63 match 1 shared topics	On Java 8 by Bruce Eckel	en	programming-languages	robotsllmsaihumans	emailphone	none
online-java.com ↗	63 match 1 shared topics	Online Java - IDE, Code Editor, Compiler	en	programming-languages	robotsllmsaihumans	emailphone	none

How the match score works

Each match is a 0–100 similarity score — the higher it is, the more two sites resemble one another. It’s computed automatically from our own crawl data (never from what a site says about itself) by combining several independent signals, so a high score means several of them point the same way:

shared topics how many of the same fine‑grained content topics (IAB sub‑categories) both sites cover — the main signal.
same category whether they sit in the same business / industry category.
content & title how closely their titles and page descriptions line up in wording and meaning.

No single signal decides the result — they’re blended together. Treat the score as a way to rank candidates rather than an absolute percentage; the chips on each result show which signals contributed.