⚡ Spam Protection in the Czech Republic

Anti-spam software is a variety of tools that protect websites from automated bots and malicious content.

The Czech Republic is a Central European country with a population of around 10.5 million people.

According to our statistics, spam protection software is used on 12.8% of websites from the Czech Republic.

⭐ Most Popular in 2026

The following chart shows the top spam protection software in the Czech Republic in 2026, based on market share.

The most popular is reCAPTCHA, which dominates the market with an overwhelming 80.5% share.
It is followed by Cloudflare Email Obfuscation with 13.3% and hCaptcha with 4.7%.

reCAPTCHA 80.5%
Cloudflare Email Obfuscation 13.3%
hCaptcha 4.7%
Cloudflare Turnstile 3.5%
CleanTalk 1.4%
Akismet 1.4%
Altcha 0.7%
Friendly Captcha 0.2%
BitNinja 0.04%
GeeTest 0.02%
MTCaptcha 0.02%

🚀 Highlights

Here is a list of the top software that is more popular in the Czech Republic than worldwide.
Differences between global and country rankings are shown in parentheses.

5. CleanTalk ^(-1)
7. Altcha ^(-2)
9. BitNinja ^(-5)
11. MTCaptcha ^(-1)

✨ Best Spam Protection Software

Below is a more detailed list of 11 spam protection software solutions used on sites from the Czech Republic, ranked by their market share.

Rank	Name	Market share
1	reCAPTCHA Mountain View, California, United States A Google service that protects websites from spam, fraud, and automated abuse by distinguishing human users from bots. Free tier$8+/month	80.5%
2	Cloudflare Email Obfuscation San Francisco, California, United States Cloudflare Email Address Obfuscation hides email addresses on web pages from bots by encrypting them. Free$25+/month	13.3%
3	hCaptcha San Francisco, California, United States A security service for detecting and preventing human and automated abuse on websites and applications, often used as a drop-in alternative to reCAPTCHA. Free$99+/month	4.7%
4	Cloudflare Turnstile San Francisco, California, United States A user-friendly CAPTCHA alternative that verifies human visitors without requiring them to solve interactive puzzles or identify objects. Free$$$	3.5%
5	CleanTalk Carson City, Nevada, United States A cloud-based anti-spam protection service that protects websites from spambots. $12+/year	1.4%
6	Akismet San Francisco, California, United States A comment spam filtering service originally developed for WordPress that can also be integrated with other CMS and forums. Free$14.95/month	1.4%
7	Altcha Brno, Czech Republic An open-source, privacy-first, self-hosted captcha alternative that uses a proof-of-work mechanism to protect websites, APIs and online services from spam and unwanted content. FreeOpen source€24+/month	0.7%
8	Friendly Captcha Woerthsee, Germany A European captcha service that protects websites from bots and automated abuse while prioritizing user privacy, security, and accessibility. Free€9+/month	0.2%
9	BitNinja Debrecen, Hungary A server security suite with a centralized dashboard containing an AI-powered Linux malware scanner, IP reputation, WAF, and spam detection. Free$5+/month	0.04%
10	GeeTest Wuhan, China A Chinese provider of CAPTCHA and bot management solutions. $$$	0.02%
11	MTCaptcha Mountain View, California, United States A GDPR and WCAG compliant enterprise captcha service. Free tier$29+/month	0.02%

👉 See Also

🌎 Spam Protection in other countries

Data is based on the analysis of 36,221 websites from the Czech Republic.
Statistics were last calculated on March 30, 2026.
For details, see our methodology and disclaimer.