🆚 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
Captcha service
Captcha service
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 verification tool that verifies human web visitors without a CAPTCHA.
Headquarters
Brno, Czech Republic
San Francisco, California, United States
Pricing
Free version ✔️Open source
ALTCHA Sentinel€24+/month
Free version ✔️With Cloudflare logo
EnterpriseOn request
Categories
Popularity
Determined by the number of sites using each technology.
The Cloudflare Turnstile captcha service is 19 times more popular than Altcha.
Total websites
Market share
Captchas
Spam Protection
Popularity by country
Determined by the number of sites detected from each country.
Cloudflare Turnstile is more popular than Altcha in all countries.
United States
United Kingdom
Germany
France
Australia
Netherlands
Italy
Canada
Spain
Switzerland
Awards
- ⭐ 4th most popular in France in the Captchas category.
- ⭐ 5th most popular in Germany in the Captchas category.
- ⭐ 7th most popular in France in the Spam Protection category.
- ⭐ 8th most popular in Germany in the Spam Protection category.
- 🥈 Second most popular in Vietnam in the Captchas category.
- 🥉 Third most popular in the United States in the Captchas category.
- 🥉 Third most popular in the United Kingdom in the Captchas category.
- 🥉 Third most popular in Australia in the Captchas category.
- 🥉 Third most popular in France in the Captchas category.
Popularity by domain category
Determined by the number of sites in each category.
Cloudflare Turnstile is more popular than Altcha in all market segments.
Business
Internet Services
Online Shopping
Marketing/Merchandising
Education/Reference
Blogs/Wiki
Travel
Non-Profit/Advocacy/NGO
Software/Hardware
Entertainment
Top sites
Top-ranked sites that use these technologies.
Name
Rank
#7,829
#22,338
#26,648
#32,511
#49,955
Compare alternatives
Technologies with similar characteristics.
Data updated
* 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.
When interpreting and using the results, please read our methodology and disclaimer.