CertAvert vs liarjs.dev

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

CertAvert compared with liarjs.dev
Detail	CertAvert	liarjs.dev
What it does	Free SSL/TLS certificate monitoring with email alerts	Browser fingerprint and automation detector that cross-checks JavaScript consistency against network layer signals
Stage	Not given	Not given
Founded	Not given	Not given
Based in	US	Not given
Pricing model	Freemium	Free
Pricing	Free plan: 3 domains, no card needed. Starter: $50/year for 10 domains. Plus: $100/year for 20 domains. Pro: $150/year for 50 domains.	Not given
Key features	Certificate expiry notifications at 30 days, 14 days, 7 days, and on expiry Broken chain detection with fix guidance TLS version and cipher checking Domain DNS and registration monitoring Certificate change history and alerts Certificate report for audits Certificate transparency log monitoring No server access or installation required	JavaScript fingerprinting across canvas, WebGL, WebGPU, audio, fonts, navigator and screen Network layer analysis via Cloudflare request metadata Behavioral challenge to verify human interaction Open-source package for CI integration Passive automation detection via navigator properties and framework residue Cross-layer consistency checking between JavaScript and network signals
What makes it different	Detects auto-renewal failures before visitors see them Explains broken chains and TLS issues with fix guidance Independent operation with no investors	Three independent detection axes that fail separately rather than as one system Combines JavaScript analysis with network-layer observations that JavaScript cannot fake Educational and defensive tool, not a service for evading detection Live read-only measurement with no data storage
Community votes	0	0
DR (Domain Rating by Ahrefs)	3 +1 (up) since last check	6 no change since last check
Trust Flow (Majestic)	1	2
Citation Flow (Majestic)	24	27
Referring domains (Majestic)	14	42

4 details filled in for both companies.

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