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3St alternatives & similar sites

Willkommen — 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
nilshaupt.de ↗	73 match 1 shared topics	Nils Haupt \| Willkommen	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
nis2-checkup.de ↗	66 match 1 shared topics	Herzlich Willkommen \| nordsec Privacy & Compliance GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
nis2-info.de ↗	66 match 1 shared topics	Herzlich Willkommen \| nordsec Privacy & Compliance GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
ast-ag.com ↗	66 match 1 shared topics	Willkommen bei ast-ag.com - AST ASSET SECURITY TRUST AG	de	information-and-network-security	robotsllmsaihumans	emailphone	none
cybersecuritycouncilgermany.com ↗	63 match 1 shared topics	Cybersicherheitsrat Deutschland – Willkommen auf der Seite des Cybersicherheitsrat Deutschland e.V.	de	information-and-network-security WordPress Spree Commerce	robotsllmsaihumans	emailphone	none
cybersecuritycouncil.eu ↗	63 match 1 shared topics	Cybersicherheitsrat Deutschland – Willkommen auf der Seite des Cybersicherheitsrat Deutschland e.V.	European Union de	information-and-network-security WordPress Spree Commerce	robotsllmsaihumans	emailphone	none
neochat.de ↗	61 match 1 shared topics	neochat – Sichere Versicherungskommunikation	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
serene-mastery.com ↗	61 match 1 shared topics	SereneMastery Cyber – Cybersicherheit für Ihr KMU	de	information-and-network-security	robotsllmsaihumans	emailphone	none
digitalbestatter.at ↗	61 match 1 shared topics	digitalbestatter – Wenn es hart auf hart kommt …	Austria de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
netzbestatter.at ↗	61 match 1 shared topics	digitalbestatter – Wenn es hart auf hart kommt …	Austria de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
keutmeier.com ↗	61 match 1 shared topics	Sichere Kommunikation: GPG & Datenschutz \| Sebastian Keutmeier	de	information-and-network-security	robotsllmsaihumans	emailphone	none
it-securitygroup.eu ↗	61 match 1 shared topics	IT-Security Group - Ihr kompetenter Partner für Datensicherheit und Serviceleistungen	European Union de	information-and-network-security	robotsllmsaihumans	emailphone	none
qgroup.net ↗	60 match 1 shared topics	QGroup Cybersicherheit	de	information-and-network-security	robotsllmsaihumans	email phone	none
qrguard.io ↗	60 match 1 shared topics	QRGuard	de	information-and-network-security	robotsllmsaihumans	emailphone	none
qrlab.biz ↗	60 match 1 shared topics	...	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
qrlab.info ↗	60 match 1 shared topics	...	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
qrlab.net ↗	60 match 1 shared topics	...	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
qroniton.net ↗	60 match 1 shared topics	QRONITON	de	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.