CleanTalk

CleanTalk is a cloud-based anti-spam service for websites that checks form submissions, registrations, comments, reviews, and orders against a spam database without using CAPTCHA or other visitor-facing challenges. It analyzes visitor behavior and form parameters to decide whether to accept or reject a submission, and it also maintains block lists of spam-active email addresses, IP addresses, and domains. The service works automatically once installed and covers multiple form types without requiring separate plugins for each.

The platform includes plugins for WordPress, Joomla, and Drupal, plus a REST API for checking POST data and user-generated content in custom applications. CleanTalk also offers a WordPress security plugin with a firewall, malware scanner with automatic cleanup, login protection, two-factor authentication, vulnerability checks, and traffic monitoring. Additional tools include an IP checker, email checker, uptime monitoring, and a free website malware scanner that checks pages for malicious code, iframes, and hidden external links.

CleanTalk is aimed at website owners, administrators, and developers who need automated spam filtering and WordPress security. Anti-spam packages are priced by the number of websites, with annual and monthly options and an unlimited-sites plan; all packages include unlimited anti-spam protection with no API call limits. The WordPress security plugin is offered separately, with per-site and unlimited-site options.