- Listing audit
- 53/100
Crovly – Proof of Work Captcha & Spam Protection is a WordPress Plugin Directory app by crovly.
AppRanks verdict
Generated from marketplace data as of Sep 11, 2026
Crovly – Proof of Work Captcha & Spam Protection is a WordPress app. It has no reviews on WordPress yet.
Pros
- No standout positives in the measured data.
Cons
- −No reviews yet — fit and reliability are unverified by other merchants
How Crovly – Proof of Work Captcha & Spam Protection works
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Crovly is a privacy-first captcha service powered by Proof of Work. Unlike traditional captchas that rely on image puzzles (easily solved by AI) or invasive tracking, Crovly makes the visitor’s browser do computational work to prove it’s not a bot.
How it works:
Your visitor’s browser solves a small cryptographic puzzle (Proof of Work)
Browser fingerprint and environment signals are collected (as a hash — no personal data stored)
Behavioral analysis detects automated patterns (mouse, keyboard, scroll)
A composite score determines if the visitor is human
Key features:
Privacy-friendly — No cookies, no cross-site tracking
No image puzzles — Invisible to legitimate users
Resistant to AI vision attacks — Proof of Work cannot be solved by image recognition
IP binding — Tokens are bound to the solver’s IP address
Adaptive difficulty — Suspicious visitors receive harder challenges
22+ integrations — Works with major WordPress form plugins
Lightweight — Widget is under 25KB gzipped, zero dependencies, 42 languages
Supported integrations:
WordPress login, registration, lost password, comments