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DFN-CERT Services GmbH — 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
cryptitsec.de ↗	69 match 1 shared topics	CryptITSec Service - Maßgeschneiderte IT-Services und Software	Germany de	information-and-network-security WordPress	robots llmsaihumans	emailphone	none
delta.ch ↗	69 match 1 shared topics	DELTAgroup Security & Services \| DELTAgroup	Switzerland de	information-and-network-security TYPO3	robotsllmsaihumans	emailphone	none
cybrdf.com ↗	68 match 1 shared topics	Cyber Security Services	de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
dressierte-affen.de ↗	68 match 1 shared topics	Inside Security GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
domain-global.de ↗	67 match 1 shared topics	Verification Service	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
vnet-services.com ↗	67 match 1 shared topics	vnet-services – vnet-services	de	information-and-network-security WordPress	robotsllmsaihumans	email phone	none
ds2edv.de ↗	66 match 1 shared topics	DS2 EDV-Service	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
d-society.dev ↗	66 match 1 shared topics	Home \| D-Society GmbH	de	information-and-network-security Grav	robotsllmsaihumans	emailphone	none
kritisdefender.com ↗	66 match 1 shared topics	Angriffserkennung \| ausecus GmbH	de	information-and-network-security Wix	robotsllmsaihumans	emailphone	none
itp-zurich.ch ↗	66 match 1 shared topics	ITPZ steht für Datenschutz und Informationssicherheit - Zürcher Zentrum für Informationstechnologie und Datenschutz	Switzerland de	information-and-network-security Contao	robotsllmsaihumans	emailphone	none
daspro.de ↗	66 match 1 shared topics	daspro GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
daspro-gmbh.de ↗	66 match 1 shared topics	daspro GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
dsb-xt.de ↗	66 match 1 shared topics	daspro GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
dsbxt.de ↗	66 match 1 shared topics	daspro GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
dachbiskeller.de ↗	66 match 1 shared topics	Datenschutz und Haushaltsservice	Germany de	information-and-network-security Contao	robotsllmsaihumans	emailphone	none
hergusec.com ↗	66 match 1 shared topics	hergusec Cyber Security GmbH	de	information-and-network-security	robotsllmsaihumans	emailphone	full · 18
cynops.de ↗	66 match 1 shared topics	Cynops GmbH	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
cwcon.de ↗	66 match 1 shared topics	HOME - Carlos Wagner Consulting Services Security	Germany 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.