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Douane: Linux personal firewall with per application rule controls — 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
hipac.org ↗	69 match 1 shared topics	nf-HiPAC: High Performance Firewall for Linux Netfilter	en	information-and-network-security	robotsllmsaihumans	emailphone	none
heimwall.com ↗	69 match 1 shared topics	HEIMWALL - Web Application Firewall	en	information-and-network-security	robotsllmsaihumans	emailphone	none
datheos.com ↗	68 match 1 shared topics	Datheos \| Personal Data Wallet & Digital Identity Control	UK~ en	information-and-network-security	robotsllmsaihumans	emailphone	none
srolegends.com ↗	68 match 1 shared topics	Maintenance - Web Application Firewall	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
0xprasanna.com ↗	67 match 1 shared topics	Prasanna \| Application Security Portfolio	en	information-and-network-security	robotsllmsaihumans	email phone	none
ecsypno.com ↗	67 match 1 shared topics	Ecsypno – Web Application Security Products	en	information-and-network-security Shopify	robots llmsaihumans	emailphone	none
cypherstash.com ↗	66 match 1 shared topics	CipherStash - Data Level Access Control for applications and AI agents	en	information-and-network-security	robots llmsaihumans	emailphone	none
antimatterav.com ↗	66 match 1 shared topics	AntiMatter AV — Advanced Cyber Security \| Antivirus, Firewall, Parental Control	en	information-and-network-security	robotsllmsaihumans	email phone	none
keepdataprivate.com ↗	66 match 1 shared topics	Keep Data Private - Working towards a world were your personal data is kept private and in your control.	en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
virtualfirewall.com ↗	66 match 1 shared topics	Virtual Firewall - Next Generation virtualized firewalls for network security.	en	information-and-network-security WordPress WooCommerce	robotsllmsaihumans	emailphone	partial · 1
datasured.com ↗	66 match 1 shared topics	Datasured — Time for Change. Take Back Control of Your Personal Data	en	information-and-network-security	robotsllmsaihumans	emailphone	partial · 8
europrivacy.org ↗	66 match 1 shared topics	Europrivacy GDPR Certification of Personal Data Protection and Privacy Conformity	en	information-and-network-security Drupal	robotsllmsaihumans	emailphone	none
oneupsecurity.com ↗	66 match 1 shared topics	One Up Security, LLC – Application Security Consulting	United States~ en	information-and-network-security WordPress	robotsllmsaihumans	emailphone	none
entraprotect.io ↗	66 match 1 shared topics	Entra ID Threat Watch - Malicious OAuth Applications	en	information-and-network-security	robotsllmsaihumans	emailphone	none
bugscale.ch ↗	66 match 1 shared topics	Bugscale - Offensive Security & Application Security \| Bugscale SA	Switzerland en	information-and-network-security	robotsllmsaihumans	email phone	none
s4applications.co.uk ↗	66 match 1 shared topics	Homepage for cybersecurity solutions - S4 Applications	United Kingdom en	information-and-network-security WordPress	robotsllmsaihumans	email phone	none
s4apps.uk ↗	66 match 1 shared topics	Homepage for cybersecurity solutions - S4 Applications	United Kingdom en	information-and-network-security WordPress	robotsllmsaihumans	email phone	none
s4apps.co.uk ↗	66 match 1 shared topics	Homepage for cybersecurity solutions - S4 Applications	United Kingdom en	information-and-network-security WordPress	robotsllmsaihumans	email phone	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.