🆚 Cap vs. MTCaptcha
- 📈 MTCaptcha is three times more popular than Cap.
- 🌎 MTCaptcha is more popular in Germany, the United States, and the Netherlands.
- 🌍 Cap is more popular in Chile, Switzerland, and Canada.
Cap
MTCaptchaType
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.
MTCaptcha is an enterprise captcha service that provides bot detection and human verification with a focus on GDPR compliance and accessibility.
It offers invisible and adaptive captcha modes, provides audio challenges, complies with 
WCAG 2.1 AAA, EAA, and Section 508 accessibility standards, and operates on global multi-region infrastructure, including regions with connectivity limitations, such as China.
Headquarters
Pricing
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.
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.
🗃️ 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 4,001,723 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.