⚡ 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 26.5% of websites from Australia.

⭐ 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, which dominates the market with an overwhelming 63.8% share.
It is followed by Cloudflare Email Obfuscation with 21% and hCaptcha with 15.9%.

reCAPTCHA 63.8%
Cloudflare Email Obfuscation 21%
hCaptcha 15.9%
Akismet 5.3%
CleanTalk 3.9%
Cloudflare Turnstile 3.1%
Altcha 0.06%
Friendly Captcha 0.03%
Human Presence 0.02%
Castle 0.01%
GeeTest 0.005%
Yidun Captcha 0.005%

🚀 Highlights

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

4. Akismet ^(-1)
5. CleanTalk ^(-1)
7. Altcha ^(-2)
9. Human Presence ^(-6)
10. Castle ^(-6)
12. Yidun Captcha ^(-2)

✨ 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	63.8%
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	21%
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	15.9%
4	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	5.3%
5	CleanTalk Carson City, Nevada, United States A cloud-based anti-spam protection service that protects websites from spambots. $12+/year	3.9%
6	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$$$	3.1%
7	Altcha Brno, Czech Republic An open-source, privacy-first, self-hosted captcha alternative that uses a proof-of-work mechanism to protect websites, APIs and online services from spam and unwanted content. FreeOpen source€24+/month	0.06%
8	Friendly Captcha Woerthsee, Germany A European captcha service that protects websites from bots and automated abuse while prioritizing user privacy, security, and accessibility. Free€9+/month	0.03%
9	Human Presence Greenville, South Carolina, United States Web security software that identified human website visitors through human behavior analysis and proprietary machine learning algorithms. Free$3.99+/month	0.02%
10	Castle New York, United States A fraud prevention platform that helps businesses block bad bots, account takeovers, transaction fraud, and spam. Free$200+/month	0.01%
11	GeeTest Wuhan, China A Chinese provider of CAPTCHA and bot management solutions. $$$	0.005%
12	Yidun Captcha Hangzhou, China A captcha service provided by the Chinese company NetEase.	0.005%

👉 See Also

🌎 Spam Protection in other countries

Data is based on the analysis of 71,823 websites from Australia.
Statistics were last calculated on February 12, 2026.
For details, see our methodology and disclaimer.