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NthLayer — Defense-in-depth for AI agent systems — 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
4tress.org ↗	69 match 2 shared topics	4tress.org — Decentralized Identity for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
megent.dev ↗	68 match 2 shared topics	Firewall for AI agents.	en	information-and-network-security	robotsllmsaihumans	emailphone	none
obsvr.dev ↗	68 match 2 shared topics	obsvr \| System of Record for AI Systems	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
identityfabric.ai ↗	68 match 2 shared topics	IdentityFabric \| Trust for agentic systems	en	information-and-network-security	robotsllmsaihumans	emailphone	none
asymptotelabs.ai ↗	68 match 2 shared topics	Asymptote: The Security Harness for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
astracipher.com ↗	68 match 2 shared topics	AstraCipher — Identity for the Age of AI Agents	en	information-and-network-security	robots llmsaihumans	emailphone	partial · 8
iaga.tech ↗	68 match 2 shared topics	IAGA Sentinel — EU AI Act conformity-evidence layer for AI agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
0eroshot.com ↗	68 match 2 shared topics	ZeroShot — Offensive Security Testing for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
a-perture.com ↗	68 match 2 shared topics	Aperture - ZK Compliance for AI Agent Payments	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
4keyless.io ↗	67 match 2 shared topics	4Keyless — Secure AI Agent Gateway	en	information-and-network-security	robots llmsaihumans	emailphone	none
astha.ai ↗	67 match 2 shared topics	Astha — Runtime Security & Compliance for AI Agent Infrastructure	en	information-and-network-security	robots llmsaihumans	emailphone	full · 15
mimirwell.net ↗	67 match 2 shared topics	MimirWell — Sovereign Encrypted Memory for AI Agents	en	information-and-network-security	robotsllmsaihumans	emailphone	none
id-agent.org ↗	67 match 2 shared topics	AgentID - Cryptographic Identity for AI Agents	en	artificial-intelligence	robotsllmsaihumans	emailphone	none
numyra.ai ↗	67 match 2 shared topics	Numyra — The Security Layer for the Agentic Era	en	information-and-network-security	robotsllmsaihumans	emailphone	none
1id.com ↗	67 match 2 shared topics	1id.com — Hardware-Backed Identity for AI Agents & Relying Parties	en	information-and-network-security	robots llmsaihumans	emailphone	none
qshield.app ↗	67 match 2 shared topics	QShield — Enterprise AI Agent Security Control Plane	en	information-and-network-security	robotsllmsaihumans	emailphone	none
queryshield.dev ↗	67 match 2 shared topics	QueryShield — secure SQL proxy for AI agents	en	information-and-network-security	robots llmsaihumans	emailphone	none
raxe.ai ↗	67 match 2 shared topics	RAXE – Runtime Detection & Evidence for AI Agents	en	artificial-intelligence	robots llmsaihumans	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.