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R2Gs alternatives & similar sites

Club R2GS - — 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 Information And Network Security →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
offensive-intelligence.com ↗	64 match 1 shared topics	Offensive Intelligence : hacking et renseignement	fr	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
cybersecurite.tn ↗	64 match 1 shared topics	Agence Nationale de la Cybersécurité en Tunisie	fr	information-and-network-security Drupal	robotsllmsaihumans	email phone	none
hacktualites.com ↗	64 match 1 shared topics	HACKTUALITES - Le Forum de la Cybersécurité	fr	information-and-network-security WordPress	robots llmsaihumans	emailphone	none
astree-solution.com ↗	64 match 1 shared topics	Astrée Solution CYBERSECURITE - Société labellisée ExpertCyber	fr	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
astree-solutions.com ↗	64 match 1 shared topics	Astrée Solution CYBERSECURITE - Société labellisée ExpertCyber	fr	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
astreesolution.com ↗	64 match 1 shared topics	Astrée Solution CYBERSECURITE - Société labellisée ExpertCyber	fr	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
kyron-solutions.eu ↗	64 match 1 shared topics	KYRON : Activez votre cybermaîtrise !	European Union fr	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
dark4d.fr ↗	64 match 1 shared topics	Solutions et expertise en cybersécurité - Dark4D	France fr	information-and-network-security	robotsllmsaihumans	emailphone	none
hackersdate.com ↗	64 match 1 shared topics	Hackersdate	fr	information-and-network-security	robotsllmsaihumans	emailphone	none
cyberfact.eu ↗	64 match 1 shared topics	CyberFact – Expert Cybersécurité n°1 \| Audit, Pentest, RGPD à Paris & Île-de-France	European Union fr	information-and-network-security	robotsllmsaihumans	email phone	none
hackerprofessionnel.com ↗	64 match 1 shared topics	Pirates Informatiques Professionnels de Confiance - Contactez-nous \| Engager Hacker Pro	fr	information-and-network-security	robotsllmsaihumans	emailphone	none
cyberfenua.info ↗	63 match 1 shared topics	CyberFenua \| Expert Cybersécurité CISSP en Polynésie Française	PF~ fr	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
elit-cyber.com ↗	63 match 1 shared topics	Accueil : Concentrez-vous sur votre cœur de métier et confiez à nos experts la cybersécurité de votre système d'information. - Elit-Cyber	fr	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
arsium.ch ↗	63 match 1 shared topics	Arsium \| Expert en cybersécurité et IT industriel à Lyon	Switzerland fr	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
cyberexperts.tech ↗	63 match 1 shared topics	Cyber Experts - Toute l'info sur la sécurité IT & la cybersécurité	fr	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
cyblex-consulting.com ↗	63 match 1 shared topics	Cyblex Consulting - Cabinet d'audit et de conseil en cybersécurité qualifié PASSI	fr	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
tyrex-cyber.com ↗	63 match 1 shared topics	TYREX – décontamination USB	fr	information-and-network-security WordPress	robots llmsaihumans	emailphone	none
0xmatthieu.dev ↗	63 match 1 shared topics	Matthieu \| Pentester en devenir	fr	information-and-network-security	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.