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Opitz alternatives & similar sites

Jonas Opitz — Firewall Administrator & Web Developer — 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
humanfirewallpodcast.com ↗	66 match 1 shared topics	Human Firewall Podcast	Germany~ de	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
4-assured.com ↗	64 match 1 shared topics	M-CR IT-Systemhaus: Sichere Netzwerke mit 4-assured: Firewall & VPN Lösungen	de	information-and-network-security	robotsllmsaihumans	emailphone	none
collab-ict.ch ↗	63 match 1 shared topics	Collab IT – Consulting, Security, Development	Switzerland de	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
collab-ikt.ch ↗	63 match 1 shared topics	Collab IT – Consulting, Security, Development	Switzerland de	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
collab-it.ch ↗	63 match 1 shared topics	Collab IT – Consulting, Security, Development	Switzerland de	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
collabikt.ch ↗	63 match 1 shared topics	Collab IT – Consulting, Security, Development	Switzerland de	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	none
meg-line.com ↗	63 match 1 shared topics	Oleg Meglin \| Security, Infrastruktur und Web Engineering	de	information-and-network-security	robotsllmsaihumans	emailphone	none
meglin-media.com ↗	63 match 1 shared topics	Oleg Meglin \| Security, Infrastruktur und Web Engineering	de	information-and-network-security	robotsllmsaihumans	emailphone	none
vollaufkurs.com ↗	62 match 1 shared topics	Voll auf Kurs - Hoßdorf & Weber GmbH	de	information-and-network-security HubSpot	robotsllmsaihumans	emailphone	none
khani-cybersec.com ↗	62 match 1 shared topics	Hamid Reza Shahsavarkhani — Cyber Security Consulting für OT & IT	de	information-and-network-security	robotsllmsaihumans	emailphone	none
better-passwort-generator.de ↗	62 match 1 shared topics	Passwort Generator – Sicher & Kostenlos Online	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
clypeus-horizon.ch ↗	62 match 1 shared topics	Clypeus Horizon — Schutz, der sich rechnet	Switzerland de	information-and-network-security	robotsllmsaihumans	emailphone	none
clypeus.ch ↗	62 match 1 shared topics	Clypeus Horizon — Schutz, der sich rechnet	Switzerland de	information-and-network-security	robotsllmsaihumans	emailphone	none
beade-media.de ↗	62 match 1 shared topics	beade media — Technologie. Sicherheit. Wirkung.	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
blackmount.de ↗	62 match 1 shared topics	BlackMount \| Turning Strategy into Security	Germany de	information-and-network-security	robotsllmsaihumans	email phone	none
blackveil.de ↗	62 match 1 shared topics	Blackveil Cyber Security - Dark Web Monitoring	Germany de	information-and-network-security	robotsllmsaihumans	emailphone	none
cypherprivacy.net ↗	62 match 1 shared topics	CypherPrivacy - A Privacy Web Directory	de	information-and-network-security	robotsllmsaihumans	emailphone	none
argsio.ch ↗	62 match 1 shared topics	Arxio: Security with confidence. From strategy to execution.	Switzerland 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.