SPAM Protection

Do you use a captcha to keep out bots? hCaptcha is a drop-in replacement for reCAPTCHA that earns website owners money and helps companies get their data labeled.

reCAPTCHA is a free security service that protects your websites from spam and abuse.

Akismet is a spam fighting service that protects millions of WordPress sites from comment and contact form spam.

Enterprise Captcha solutions

GeeTest protects your websites, mobile Apps and APIs from bot threats.

freemium

Spam protection for WordPress, Joomla, Drupal, and any other websites

Open Source Free Trial $12.0 / Annually

A reliable captcha service, offers advanced security to protect websites from spam and abuse while ensuring a user-friendly experience for legitimate visitors.

freemium $10.0 / Monthly ("2 Domains", "1,500,000 Requests Per Month", "1 Datacenter")

The better, new standard to stop spam content.

freemium $49.0 / Monthly (Unlimited Websites, 100K API Calls)

DataDome provides innovative technology and human expertise to block bad bots.

Solve Media's cost per engagement platform offers advertisers branded CAPTCHA and skippable Pre-Roll while providing publishers with enhanced security and a new revenue solution.

UniqPin is a free for non-commercial use service which destiny improve ability of interfaces detect...

StopForumSpam - a database of known forum and blog spam, its sources and the email addresses reported

CAPTCHA that filters out humans and only lets programs pass