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When a user posts a comment or other content to your website, your web server sends this content to Mollom for evaluation. Mollom tells your site whether it thinks the content is spam and gives it a quality score. Your web server then decides to allow or reject the content based on quality guidelines that you set. Piece of cake! Learn more about how Mollom works or check out Mollom's features below.

  1. Next generation spam filtering technology … Ham or spam? - When new content is analyzed by Mollom's intelligent text-analysis filter, and Mollom is unsure whether it is ham or spam, it asks the user to answer a CAPTCHA challenge. This challenge-response procedure will never block human users, and it allows us to set very tight spam filters and prevent almost all spam from getting through. If an unwanted message still makes it onto your website, you can help fight back by reporting it to us. Mollom learns from its mistakes, and you help make our spam filters even better.
  2. Eliminate spam moderation queues - By using a combination of advanced content analysis techniques and CAPTCHA challenges, we are able to make sure more spam is captured without preventing legitimate users from posting on your site. This all but eliminates your moderation queue.
  3. Accessible and secure CAPTCHAs - Mollom provides both image and audio CAPTCHA challenges, allowing the visually impaired to participate on your site. We serve our CAPTCHAs from a centralized server and constantly monitor CAPTCHA quality. If hackers solve them, we respond by immediately changing them.
  4. Content quality assessment (BETA) - Mollom provides a quality score, based on automated content-analysis techniques, for each post sent to us for analysis. This makes it possible to ignore or reject low-quality or offensive comments, based on quality metrics that you control.
  5. Multi-lingual - Mollom stops spam and unwanted content in all languages.
  6. Extensive statistics - Mollom plays with an open hand. We show real-time statistics on our front page and maintain an individual statistics page for each site protected by Mollom.
  7. Open API - Mollom is built on an open API, meaning that anyone may incorporate Mollom into their web applications. We provide open-source modules for several content-management systems, but you are free to adapt it for your own needs.
  8. High-availability built in - The Mollom API uses client-side load balancing, making it reliable and practically infinitely scalable. Should one Mollom server fail or become overloaded, another Mollom server will automatically take over. The Mollom Plus subscription service is guaranteed to be available 99.9% of the time.
  9. OpenID - Mollom fully supports OpenID, a decentralized, single sign-on system, which allows users to log in to different websites using only one set of credentials. Internally, Mollom builds a reputation for each of our users' OpenIDs, allowing the inheritance of user reputations across sites in the future.
  10. Dedicated Mollom servers - We offer dedicated Mollom servers for enterprise users. These are virtual servers running dedicated, unlimited, full-featured instances of Mollom. You can rest assured that your server will never be hit by a DDoS attack, since it accepts connections only from your web server.
  11. Secure authentication - Mollom uses a secure authentication scheme using a keyed-hash message authentication code instead of just a single access key. This protects your key. Hackers cannot hijack your account or impersonate you.