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Security404 alternatives & similar sites

Security404 – You Can’t Breach What You Can’t Reach. — 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
haveibeenpwned.com ↗	70 match shared topic	Have I Been Pwned: Check if your email address has been exposed in a data breach	en	information-and-network-security	robotsllmsaihumans	emailphone	none
illumio.com ↗	70 match shared topic	Breach Containment & AI Cloud Detection and Response \| Illumio	United States~ en	information-and-network-security	robotsllmsaihumans	emailphone	none
intruder.io ↗	70 match shared topic	Intruder \| Stop Breaches Before They Start	en	information-and-network-security	robotsllmsaihumans	emailphone	none
safebreach.com ↗	70 match shared topic	SafeBreach \| Exposure Validation Platform	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
drivestrike.com ↗	70 match shared topic	Remote Wipe \| Data Breach Protection \| DriveStrike	en	information-and-network-security WordPress WooCommerce	robots llmsaihumans	emailphone	none
trustwave.com ↗	62 match shared topic	Secure What's Next \| LevelBlue	en	information-and-network-security HubSpot	robotsllmsaihumans	emailphone	none
nmap.org ↗	62 match shared topic	Nmap: the Network Mapper - Free Security Scanner	en	information-and-network-security	robotsllmsaihumans	emailphone	none
insecure.org ↗	62 match shared topic	Insecure.Org - Nmap Free Security Scanner, Tools & Hacking resources	en	information-and-network-security	robotsllmsaihumans	emailphone	none
redcanary.com ↗	62 match shared topic	Red Canary: Find and stop cyber threats anywhere	en	information-and-network-security WordPress	robots llmsaihumans	emailphone	none
datarisk.ca ↗	62 match shared topic	Datarisk Canada Homepage \| Cybersecurity Audit & Assessment	Canada en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
informatica.org ↗	62 match shared topic	Informatica Corporation \| Canada's Cybersecurity Leader	en	information-and-network-security WordPress WooCommerce	robots llmsaihumans	emailphone	none
vectra.ai ↗	62 match shared topic	Vectra AI \| Cybersecurity AI That Stops Attacks Others Can’t	United States~ en	information-and-network-security Webflow	robotsllmsaihumans	emailphone	none
pixelscan.net ↗	62 match shared topic	Pixelscan \| Fast multi-check tool for detection analysis	en	information-and-network-security	robotsllmsaihumans	emailphone	none
cybersecuritydomrep.com ↗	62 match shared topic	Cyber Security Dominican Republic \| by G5 Cyber Security (USA), Inc.(G5CS)	en	information-and-network-security	robotsllmsaihumans	emailphone	none
openvas.org ↗	62 match shared topic	OPENVAS - Open Vulnerability Assessment Scanner	en	information-and-network-security	robotsllmsaihumans	emailphone	none
hackertarget.com ↗	62 match shared topic	28 Online Vulnerability Scanners & Network Tools	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
ptkd.com ↗	62 match shared topic	— uniquely replaced by Helmet per-route at prerender, or at runtime when the SPA hydrates. Other meta tags (description, og:, twitter:, canonical, robots) are provided per-route by SEOHead/Helmet; we don't repeat them here because vite-prerender-plugin would append rather than replace them. -->	en	information-and-network-security	robotsllms ai humans	emailphone	none
internetivo.com ↗	62 match shared topic	IVO - Do what you love. Get paid securely.	Cyprus~ en	information-and-network-security	robots llmsaihumans	emailphone	partial · 8

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.