PromptSign.ai vs BlockBots

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

PromptSign.ai compared with BlockBots
Detail	PromptSign.ai	BlockBots
What it does	Code signing for AI skills and agents	Stop paying for traffic that never converts. Bots and proxies, blocked at the edge.
Stage	Not given	Not given
Founded	Not given	Not given
Based in	Not given	Not given
Pricing model	Not given	Freemium
Pricing	Not given	Free: $0 forever, includes user-agent whitelisting, login page protection, rate limiting, known-bad-bot blocking, and JavaScript/PHP/WordPress integrations. Pro: $49/month with 14-day trial, includes everything in Free plus cloud verification, deep detection, VPN/proxy/emulator blocking, verified cr
Key features	Sign skills and agents with verified identity authentication Verify file integrity using SHA-256 fingerprints Offline verification without internet connection Public transparency log for accountability Revoke trust for compromised keys or bad actors Support GitHub, Google, Microsoft and company account authentication Command-line tool for integration with Claude and Codex hooks	IP intelligence for proxy and VPN detection Device filtering for mobile, tablet and desktop Geo targeting with support for every region worldwide Dashboard with traffic monitoring and filtering Verified crawler allow-list for trusted search engines Signed cookie for server-side checks Sub-5ms average detection latency 99.9% uptime SLA JavaScript SDK, PHP, and WordPress plugin integrations Rate limiting and login page protection
What makes it different	Immutable transparency log that prevents silent key revocation Blocks unsigned or tampered instructions in Claude Code and Codex integration	Runs before your code executes, blocking bots before they trigger queries or ads Fails open by stepping aside if the service is unavailable, keeping your site live Cloud verification for search engines prevents impostor crawlers from passing No infrastructure to run or maintain, just a script tag or plugin Transparent blocking with dashboard showing every blocked request and reason
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	Not checked yet no change since last check	Not checked yet no change since last check
Trust Flow (Majestic)	1	0
Citation Flow (Majestic)	19	20
Referring domains (Majestic)	27	5

3 details filled in for both companies.

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