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Nullify alternatives & similar sites

Nullify — A Higher Order of Product Security — 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 Artificial Intelligence →

Domain	Match	Title	Country/Lang	Category	AI files	Contact	AI-protection
diffsec.dev ↗	70 match 2 shared topics	diff sec — open source AI for product security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
webscanner.dev ↗	69 match 2 shared topics	Sentinel — AI-Powered Web Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
aegissec.net ↗	68 match 2 shared topics	Aegis OT Security — AI‑Driven NDR	en	information-and-network-security Spree Commerce	robotsllmsaihumans	emailphone	none
agentsecurity.com ↗	68 match 2 shared topics	Agent Security \| Home	en	information-and-network-security Storyblok	robots llmsaihumans	emailphone	none
depthfirst.com ↗	68 match 2 shared topics	depthfirst \| Autonomous Security from Design to Production	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
adclhq.com ↗	68 match 2 shared topics	ADCL — Autonomous Offensive Security	en	artificial-intelligence	robots llmsaihumans	emailphone	partial · 8
adcl.io ↗	68 match 2 shared topics	ADCL — Autonomous Offensive Security	en	artificial-intelligence	robots llmsaihumans	emailphone	partial · 8
adcl-direct.com ↗	68 match 2 shared topics	ADCL — Autonomous Offensive Security	en	artificial-intelligence	robots llmsaihumans	emailphone	partial · 8
direct-adcl.com ↗	68 match 2 shared topics	ADCL — Autonomous Offensive Security	en	artificial-intelligence	robots llmsaihumans	emailphone	partial · 8
owlmind.dev ↗	68 match 2 shared topics	OwlMind — AI-Powered Security Research	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
threataiwatch.com ↗	67 match 2 shared topics	Mint Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentslocked.com ↗	67 match 2 shared topics	Agents Locked — Security for Vibe Coders	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agentgrade.net ↗	67 match 2 shared topics	AgentGrade — AI Agent Security Scanner	en	information-and-network-security	robots llmsaihumans	emailphone	none
thexar.com ↗	67 match 2 shared topics	thexar — AI Security Evaluation	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
tia-framework.com ↗	67 match 2 shared topics	TIA — Autonomous AI Security Operations	en	information-and-network-security	robotsllmsaihumans	emailphone	none
wavetransmitsecurity.com ↗	67 match 2 shared topics	Home \| Transmit Security	en	artificial-intelligence WordPress	robotsllmsaihumans	emailphone	none
waultsec.com ↗	67 match 2 shared topics	WaultSec — AI-Powered Server Security & Threat Detection	en	information-and-network-security	robotsllmsaihumans	emailphone	none
webtransmitsecurity.com ↗	67 match 2 shared topics	Home \| Transmit Security	en	artificial-intelligence WordPress	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.