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Quantos alternatives & similar sites

Quantos — Post-Quantum Layer 1 DAG — 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
cryptoquantumsafe.com ↗	73 match 1 shared topics	QuantumSafe \| Post-Quantum Cryptography Solutions	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
cipherzenith.com ↗	73 match 1 shared topics	Cipher Zenith — Post-Quantum Sovereignty	en	information-and-network-security	robotsllmsaihumans	emailphone	none
quantumchat.cloud ↗	72 match 1 shared topics	QuantumChat — Post-Quantum Encrypted Communication	en	information-and-network-security	robotsllmsaihumans	emailphone	none
quantumhandshake.tech ↗	72 match 1 shared topics	QuantumHandshake™ — Post-Quantum Trust Infrastructure	en	information-and-network-security	robotsllmsaihumans	emailphone	none
quantumhandshake.org ↗	72 match 1 shared topics	QuantumHandshake™ — Post-Quantum Trust Infrastructure	en	information-and-network-security	robotsllmsaihumans	emailphone	none
quantumhandshake.net ↗	72 match 1 shared topics	QuantumHandshake™ — Post-Quantum Trust Infrastructure	en	information-and-network-security	robotsllmsaihumans	emailphone	none
quantroot.org ↗	71 match 1 shared topics	Quantroot — Post-Quantum Security for Bitcoin Taproot	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qmask.io ↗	71 match 1 shared topics	QMask \| Post-Quantum Secure Wallet for Quantova	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
qring.io ↗	71 match 1 shared topics	QRing.io \| Post-Quantum Privacy	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qryptofederal.com ↗	71 match 1 shared topics	QryptoTrust — Post-Quantum Platform	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qlavis.org ↗	71 match 1 shared topics	Qlavis™ · Messenger — Post-Quantum Encrypted Communications	en	information-and-network-security	robotsllmsaihumans	emailphone	none
quantumencryptor.org ↗	71 match 1 shared topics	Quantum Encryptor — Post-Quantum Hybrid Encryption	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qrypta.io ↗	71 match 1 shared topics	QRYPTA - Post-Quantum Secure Document Vault	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qunext.ai ↗	71 match 1 shared topics	QuNext AI - Post-Quantum Cryptography Platform	en	information-and-network-security	robotsllmsaihumans	emailphone	none
qvs.app ↗	70 match 1 shared topics	QVS — Quantum Vulnerability Scanner \| Post-Quantum Cryptography Assessment	en	information-and-network-security	robotsllmsaihumans	emailphone	none
0dq.io ↗	70 match 1 shared topics	0 Day Quantum - Post-Quantum Cryptography Readiness	en	information-and-network-security	robotsllmsaihumans	emailphone	none
quantumauth.io ↗	70 match 1 shared topics	QuantumAuth — A Post-Quantum Identity Protocol for Web3	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
qubitor.org ↗	70 match 1 shared topics	Qubitor Network — A post-quantum security layer for value	en	information-and-network-security	robotsllmsaihumans	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.