🆚 Cap vs. hCaptcha
Cap
hCaptchaType
About
Cap is an open-source, self-hosted 
reCAPTCHA alternative that verifies visitors without visual puzzles, tracking, or third-party services.
It uses a two-layer verification model that combines proof-of-work challenges accelerated with 
WebAssembly and Web Workers, including SHA-256 hashing and optional GPU-resistant time-locks.
hCaptcha is a security service for detecting and preventing human and automated abuse on websites and applications, often used as a drop-in alternative to reCAPTCHA.
It uses machine learning-driven bot detection and risk scoring without collecting personal data for GDPR, CCPA and global privacy compliance, and offers customizable challenge types and passive modes to reduce user friction.
Headquarters
Pricing
(100K monthly evals, No CAPTCHA passive mode) $1,188+/year
(bot categorization, threat signatures) Custom
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- 🥇 Most popular in Pakistan in the Captchas category.
- 🥇 Most popular in Pakistan in the Spam Protection category.
- 🥈 Second most popular in the United States in the Captchas category.
- 🥈 Second most popular in the United Kingdom in the Captchas category.
- 🥈 Second most popular in Germany in the Spam Protection category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Cloudflare Turnstile
Yandex SmartCaptcha
Friendly Captcha
Altcha🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,604,716 websites. However, data for Cap is still being collected and reflects a smaller subset of sites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.