⚡ Spam Protection in Australia

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

Australia is an Oceanian country with a population of over 27 million people.

According to our statistics, spam protection software is used on 31.6% of websites from Australia.

Statistics based on 82K+ analyzed websites. About this data

⭐ Most Popular in 2026

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

The most popular is reCAPTCHA with a substantial share of 52.6%, followed by hCaptcha with 31.2% and Cloudflare Email Obfuscation with 18.7%.

reCAPTCHA 52.6%
hCaptcha 31.2%
Cloudflare Email Obfuscation 18.7%
Cloudflare Turnstile 10.6%
Akismet 4.2%
CleanTalk 3.4%
Altcha 0.09%
Friendly Captcha 0.03%
Castle 0.01%
GeeTest 0.004%
MTCaptcha 0.004%
Yidun Captcha 0.004%

🚀 Highlights

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

2. hCaptcha ^(-1)
7. Altcha ^(-2)
9. Castle ^(-7)
11. MTCaptcha ^(-1)
12. Yidun Captcha ^(-1)

✨ Best Spam Protection Software

Below is a more detailed list of 12 spam protection software solutions used on sites from Australia, 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	52.6%
2	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	31.2%
3	Cloudflare Email Obfuscation San Francisco, California, United States A Cloudflare Scrape Shield security feature that encrypts email addresses in HTML to hide them from harvesting bots and keep them visible and clickable for human visitors. Free$25+/month	18.7%
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$$$	10.6%
5	Akismet San Francisco, California, United States A comment spam filtering service originally developed for WordPress that can also be integrated with other CMS and forums. Free$14.95/month	4.2%
6	CleanTalk Carson City, Nevada, United States A cloud-based anti-spam service that protects websites from automated spam in online forms, comments, and registrations. $12+/year	3.4%
7	Altcha Brno, Czech Republic An open-source, privacy-first, self-hosted captcha alternative that uses a proof-of-work mechanism to protect websites, APIs, and online services from spam and unwanted content. FreeOpen source€99+/month	0.09%
8	Friendly Captcha Woerthsee, Germany A European captcha service that protects websites from bots and automated abuse while prioritizing user privacy, security, and accessibility. Free€9+/month	0.03%
9	Castle New York, United States A fraud prevention platform that helps businesses block bad bots, account takeovers, transaction fraud, and spam. Free$200+/month	0.01%
10	GeeTest Wuhan, China A Chinese bot management and CAPTCHA platform that uses behavioral analysis, machine learning, and device fingerprinting to distinguish human users from automated traffic. $$$	0.004%
11	MTCaptcha Mountain View, California, United States An enterprise captcha service that provides bot detection and human verification with a focus on GDPR compliance and accessibility. Free$29+/month	0.004%
12	Yidun Captcha Hangzhou, China A captcha service provided by the Chinese company NetEase.	0.004%

👉 See Also

🌎 Spam Protection in other countries

🗃️ 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 82,044 websites from Australia.
We currently track the presence of 18 spam protection software solutions across the web.
Of these, 12 were detected on websites from Australia.
Statistics were last calculated on September 27, 2026.
For more details, see our methodology and disclaimer.