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Promptfirewall alternatives & similar sites

Prompt Firewall — AI Security & Privacy — 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
cyberlab.biz ↗	73 match 2 shared topics	CyberLab — AI Security Research Lab	en	information-and-network-security	robotsllmsaihumans	emailphone	none
briangreunke.com ↗	73 match 2 shared topics	Brian Greunke — AI Security & Engineering	en	artificial-intelligence	robots llmsaihumans	emailphone	none
trialprompthalo.com ↗	72 match 2 shared topics	PromptHalo — Real-time AI Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
myprompthalo.com ↗	72 match 2 shared topics	PromptHalo — Real-time AI Security	en	information-and-network-security	robotsllmsaihumans	emailphone	none
singularity-cybersecurity.com ↗	72 match 2 shared topics	Singularity Cybersecurity — AI Security Research That Ships	en	information-and-network-security Spree Commerce	robotsllmsaihumans	emailphone	none
singularitycyber.com ↗	72 match 2 shared topics	Singularity Cybersecurity — AI Security Research That Ships	en	information-and-network-security Spree Commerce	robotsllmsaihumans	emailphone	partial · 8
cyproglobal.net ↗	71 match 2 shared topics	CyproGlobal — Cybersecurity & AI Security Consulting	en	information-and-network-security Spree Commerce	robotsllmsaihumans	emailphone	none
casky.ai ↗	71 match 2 shared topics	Casky — AI Security Investigation Platform	en	information-and-network-security	robots llmsaihumans	emailphone	none
medullainstitute.org ↗	70 match 2 shared topics	Medulla AI Security Research Institute	United States~ en	artificial-intelligence	robots llmsaihumans	emailphone	partial · 8
dccyberlawyer.com ↗	70 match 2 shared topics	Cybersecurity, AI, and Privacy	United States~ en	information-and-network-security Squarespace Magento	robotsllmsaihumans	emailphone	none
dcailaw.com ↗	70 match 2 shared topics	Cybersecurity, AI, and Privacy	United States~ en	information-and-network-security Squarespace Magento	robotsllmsaihumans	emailphone	none
dcailawyer.com ↗	70 match 2 shared topics	Cybersecurity, AI, and Privacy	United States~ en	information-and-network-security Squarespace Magento	robotsllmsaihumans	emailphone	none
cypilot.io ↗	70 match 2 shared topics	Cyflow — Workspace Data & AI Security	United States~ en	information-and-network-security	robotsllmsaihumans	email phone	none
cypilot.ai ↗	70 match 2 shared topics	Cyflow — Workspace Data & AI Security	United States~ en	information-and-network-security	robotsllmsaihumans	email phone	none
aisi.gov.uk ↗	70 match 2 shared topics	The AI Security Institute (AISI)	United Kingdom en	artificial-intelligence	robotsllmsaihumans	emailphone	none
tragentics.com ↗	70 match 2 shared topics	Tragentics — AI Agent Security Platform	en	information-and-network-security	robotsllmsaihumans	emailphone	none
trakory.com ↗	70 match 2 shared topics	Trakory — AI-Powered Security Auditing	en	information-and-network-security	robotsllmsaihumans	emailphone	none
cybpass.com ↗	70 match 2 shared topics	CybPass \| AI Security	en	information-and-network-security Wix	robots llmsaihumans	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.