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Open Security alternatives & similar sites

Open Security | Personal Cybersecurity by Alex Chamberlain — 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
0xpolar.com ↗	72 match 1 shared topics	0xpolar - Cybersecurity Research & Offensive Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
lwsecure.com ↗	72 match 1 shared topics	LW Secure \| Managed Cybersecurity Services	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
inboxgetagency.com ↗	72 match 1 shared topics	Agency Cybersecurity \| Security and Compliance Team	en	information-and-network-security	robots llmsaihumans	emailphone	none
torjua.com ↗	72 match 1 shared topics	Torjua — Cybersecurity by Puida	Finland~ en	information-and-network-security	robotsllmsaihumans	emailphone	none
blackboxsecurity.tech ↗	72 match 1 shared topics	BlackBox Security — IT & Cybersecurity, Kingston JM	en	information-and-network-security	robotsllmsaihumans	emailphone	none
thinktravasecurity.com ↗	72 match 1 shared topics	Trava Security \| Cybersecurity & Compliance Solutions	United States~ en	information-and-network-security	robots llmsaihumans	emailphone	none
blackswan-cybersecurity.com ↗	71 match 1 shared topics	Blackswan Cybersecurity \| 24/7 Managed Security & Breach Response	en	information-and-network-security WordPress WooCommerce	robots llmsaihumans	emailphone	none
securityhive.eu ↗	71 match 1 shared topics	SecurityHive \| Honeypot Threat Detection & Cybersecurity	European Union en	information-and-network-security	robotsllmsaihumans	emailphone	none
blackcloak.io ↗	71 match 1 shared topics	BlackCloak \| Digital Executive Protection \| Personal Cybersecurity	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
cm-alliance.com ↗	71 match 1 shared topics	Cyber Security Training and Cybersecurity Consulting UK	en	information-and-network-security HubSpot	robotsllmsaihumans	emailphone	none
badrabbitsecurity.com ↗	71 match 1 shared topics	Bad Rabbit Security \| Cyber Security Consulting Services	en	information-and-network-security Wix	robots llmsaihumans	emailphone	none
incorecybersecurity.com ↗	71 match 1 shared topics	INCORE CYBERSECURITY	en	information-and-network-security	robotsllmsaihumans	emailphone	none
security.eu ↗	71 match 1 shared topics	security.eu — Managed Cybersecurity Services	European Union en	information-and-network-security	robotsllmsaihumans	emailphone	none
0daysecurity.io ↗	71 match 1 shared topics	0day Security (Zero-Day) \| Advanced Cybersecurity Solutions	United States~ en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
baitsecurity.com ↗	71 match 1 shared topics	Bait Security \| IT Procurement & Cybersecurity Solutions	en	information-and-network-security	robotsllmsaihumans	email phone	none
coretechsec.com ↗	71 match 1 shared topics	CoreTech Security \| World-class Cybersecurity And Engineering	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
coretech-security.com ↗	71 match 1 shared topics	CoreTech Security \| World-class Cybersecurity And Engineering	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
corebridgesecurity.com ↗	71 match 1 shared topics	CoreBridge Security \| Enterprise Cyber Security Consultants	en	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.