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Quantumauth alternatives & similar sites

QuantumAuth — A Post-Quantum Identity Protocol for Web3 — 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
dilithia.org ↗	70 match 1 shared topics	Dilithia — Post-Quantum Blockchain	en	information-and-network-security	robots llmsaihumans	emailphone	none
skiaid.org ↗	70 match 1 shared topics	Skia — Sovereign Identity Provider	en	information-and-network-security	robots llmsaihumans	emailphone	partial · 8
cryptoquantumsafe.com ↗	69 match 1 shared topics	QuantumSafe \| Post-Quantum Cryptography Solutions	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
thotquantum.com ↗	69 match 1 shared topics	ThotQuantum - Post-Quantum Encryption-as-a-Service (EaaS)	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agent57.ai ↗	69 match 1 shared topics	Agent 57 — Identity Protection for the AI Era	en	information-and-network-security	robotsllmsaihumans	emailphone	none
0dq.io ↗	68 match 1 shared topics	0 Day Quantum - Post-Quantum Cryptography Readiness	en	information-and-network-security	robotsllmsaihumans	emailphone	none
agent-identity.org ↗	68 match 1 shared topics	SAIP \| Secure Agent Identity Protocol	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
siqn.org ↗	68 match 1 shared topics	Siqn - Post-Quantum Signatures for Your Software	en	information-and-network-security	robotsllmsaihumans	emailphone	none
sip-protocol.org ↗	68 match 1 shared topics	SIP Protocol - The Privacy Standard for Web3	en	information-and-network-security	robotsllmsaihumans	emailphone	none
web3securityprotocol.com ↗	68 match 1 shared topics	Web3Security Protocol \| Secure Your Crypto & Web3 Assets	en	information-and-network-security	robotsllmsaihumans	emailphone	none
janjatek.com ↗	68 match 1 shared topics	JANJATEK — Critical Systems & Post-Quantum Security	Portugal~ en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
ozoname.com ↗	68 match 1 shared topics	OZO Name \| A Universal Identity Layer for Web3	en	information-and-network-security	robotsllmsaihumans	emailphone	none
singularencryption.com ↗	68 match 1 shared topics	Singular Encryption - Zero-Touch Quantum Protection for the Quantum Era	en	information-and-network-security	robotsllmsaihumans	emailphone	none
baseline-protocol.org ↗	68 match 1 shared topics	Baseline Protocol	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
agentidentityprotocol.io ↗	68 match 1 shared topics	Agent Identity Protocol (AIP) - Agent Identity Protocol	en	information-and-network-security	robots llmsaihumans	emailphone	none
curvyprotocol.app ↗	67 match 1 shared topics	Curvy Protocol	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
curvyprotocol.org ↗	67 match 1 shared topics	Curvy Protocol	en	information-and-network-security	robotsllmsaihumans	emailphone	none
directoryshield.com ↗	67 match 1 shared topics	DirectoryShield - Intelligent Identity Protection	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.