MarkH
Used CleanTalk for many years with Xenforo
Has been an active addon for our community forum for many years and continues to help us mitigate and filter good from bad users.

CleanTalk is a SaaS spam protection service for websites. CleanTalk uses protection methods which are invisible to site visitors. Connecting to the service eliminates needs for CAPTCHA, questions and answers, and other methods of protection that complicate the exchange of information on the site.CleanTalk cloud service provides automatic and invisible protection against spam for websites. CleanTalk analyzes user behavior and evaluates the parameters of a completed form.The CleanTalk company developed unique algorithms to assess the behavior of visitors, and with 99.998% accuracy, we keep spam messages at bay. All of this happens automatically and requires no action from the website administrator.CleanTalk team has been developing a cloud spam protection system for 6 years and has created a truly reliable anti-spam service designed for you to guarantee your safety.
CleanTalk (cleantalk.org) has 724 customer reviews on Five Star Index, with an average rating of 4.9 out of 5.
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MarkH
Has been an active addon for our community forum for many years and continues to help us mitigate and filter good from bad users.
Raden J.
And it provides a high level of security. Proven by time and practice.
Obasi M.
The experience has been great so far. I deployed their spam prevention services on a dated SMF forum website and wasn't disappointed with their solution. It solved the spam registration issues permanently.
Osip L.
The most important thing you should know is that it handles the set tasks and always works when it is important. And I absolutely do not feel sorry for the time and money spent.
Williamson
So far so good, hope to see it work good in the future too :)
Oliver W.
They give great service, their product always great.
cpyder
After I did a trail period on my website (MediaWiki) there where no more spammers on my website anymore. The protection looks to be 100% effective. I consider to use it on my other website too (Wordpress).