🆚 Altcha vs. GeeTest

📈 Altcha is twice as popular as GeeTest.
🌎 Altcha is more popular in Germany, the United States, and France.
🌍 GeeTest is more popular in China, Japan, and Turkey.

Statistics based on 3.5M+ analyzed websites. About this data

Altcha

GeeTest

Type

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.

It performs client-side computational challenges based on hashing and memory-hard algorithms such as Argon2 and Scrypt, adds headers and signatures for verification, operates without cookies, fingerprinting, or external requests, and supports more than 50 languages to meet accessibility and privacy requirements.

GeeTest is a Chinese provider of CAPTCHA and bot management solutions.

Headquarters

Brno, Czech Republic

Wuhan, China

Website

altcha.org #175,575

geetest.com/en/ #16,827

Pricing

Free version ✔️Open source

ALTCHA Sentinel€99+/month

Free version ❌

On request

Popularity

Determined by the number of sites using each technology.

The Altcha captcha service is 2.3 times more popular than GeeTest.

Total websites

Market share

Captchas

Spam Protection

Popularity by country

Determined by the number of sites detected from each country.

Altcha is more popular in Germany, the United States, and France, while GeeTest is more popular in China, Japan, and Turkey.

Germany

China

United States

France

United Kingdom

Switzerland

Czech Republic

Austria

Netherlands

Poland

Awards

⭐ 4th most popular in France in the Captchas category.
⭐ 4th most popular in the United Kingdom in the Captchas category.
⭐ 4th most popular in the Czech Republic in the Captchas category.
⭐ 4th most popular in Poland in the Captchas category.
⭐ 5th most popular in Germany in the Captchas category.

⭐ 6th most popular in China in the Captchas category.
⭐ 6th most popular in the United States in the Captchas category.
⭐ 7th most popular in China in the Spam Protection category.
⭐ 8th most popular in the United States in the Spam Protection category.

Popularity by domain category

Determined by the number of sites in each category.

Altcha is more popular among sites focused on business, online shopping, and marketing and merchandising, while GeeTest is more commonly used on travel, finance and banking, and blogs and wiki sites.

Travel

Business

Online Shopping

Marketing/Merchandising

Non-Profit/Advocacy/NGO

Education/Reference

General News

Internet Services

Real Estate

Software/Hardware

Top sites

Top-ranked sites that use these technologies.

Name

Rank

#5,726

#7,004

#8,664

#15,520

#23,074

Name

Rank

#156

#212

#340

#2,190

#2,957