CleanTalk Anti-Spam is a hosted service that protects websites, contact forms, comment sections and online shops against spam and spambots. Its checks run in the background, so visitors do not see a challenge, and the vendor presents the service as an alternative to CAPTCHA. It is delivered as a cloud service, with plug-ins for content management systems such as WordPress and an anti-spam API for other applications.
CleanTalk Inc. is based in Carson City, Nevada, in the United States, so the operator is subject to US jurisdiction, including the CLOUD Act. The privacy page refers to the EU-US Data Privacy Framework but does not name the regions where customer data is stored, and the vendor describes no European hosting option or GDPR statement. A European organisation should therefore assume that form and visitor data may be processed in the United States, and should check the data processing terms and transfer basis before deploying the service.