🆚 Altcha vs. Cloudflare Turnstile
Compare technologies based on real-world usage data *- 📈 Cloudflare Turnstile is much more popular than Altcha.
- 🌍 Cloudflare Turnstile is more popular in all countries.
- ⭐ Altcha is particularly popular in Germany.
Cloudflare TurnstileType
About
Altcha is an open-source, privacy-first, self-hosted captcha alternative that uses a proof-of-work mechanism to protect websites, APIs and online services from spam and unwanted content.
Cloudflare Turnstile is a user-friendly CAPTCHA alternative that verifies human visitors without requiring them to solve interactive puzzles or identify objects.
It works by running invisible background tests such as proof-of-work calculations and checks for browser quirks to analyze the visitor's environment and behavior, supports Private Access Tokens (PATs) to validate devices without tracking, and offers a free API.
Headquarters
cloudflare.comPricing
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
- ⭐ 4th most popular in France in the Captchas category.
- ⭐ 4th most popular in the Czech Republic in the Captchas category.
- ⭐ 4th most popular in the United Kingdom in the Captchas category.
- ⭐ 5th most popular in Germany in the Captchas category.
- ⭐ 5th most popular in the United States in the Captchas category.
- 🥈 Second most popular in Hungary in the Captchas category.
- 🥈 Second most popular in Slovakia in the Captchas category.
- 🥈 Second most popular in Estonia in the Captchas category.
- 🥈 Second most popular in Iran in the Captchas category.
- 🥉 Third most popular in the United States in the Captchas 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.
reCAPTCHA
hCaptcha
Friendly Captcha
Human Presence* According to recent studies, many of online reviews are fake.
When making your decision, it is better to rely on data that cannot be falsified.
Our service evaluates the popularity of technologies by the number of websites using them.