How does Mollom compare with other services like Akismet or Defensio?
Due to its convenience, accuracy, performance, accessibility, and openness, we think Mollom is the best solution available for preventing comment spam on your site.
To help compare and contrast Mollom with other similar services, we've developed a table that focuses on a few key areas.
| Mollom | Akismet | Defensio | |
|---|---|---|---|
| Company | Mollom | Automattic | Websense Inc. |
| When in doubt, use CAPTCHA? | Yes | No | No |
| Protect user registrations | Yes, on some platforms | No | No |
| Supported platforms | Drupal, Joomla!, WordPress, and others | WordPress and others | WordPress and others |
| Multiple language support | Yes | Yes | Yes |
| Commercial partners | Yes | No | Yes |
| Developer API | Yes | Yes | Yes |
| CAPTCHA support | Yes | No | No |
| Reputation tracking | Yes | Unknown | Yes |
| Highly-available back-end network | Yes | Unknown | Yes |
| Ability to retain spam for manual moderation | Yes2 | Yes | Unknown |
| Protection for new user registrations, lost password requests, etc. | Yes2 | Unknown | Unknown |
| Protection for custom and site-wide forms | Yes2 | Unknown | Unknown |
| Hidden honeypots to trap spam bots | Yes2 | Unknown | Unknown |
| Support and feedback | Yes | Yes | Yes |
| Security protocol | HMAC | None | None |
| Free for personal use | Yes1 | Yes | Yes |
| Free for commercial use | Yes1 | No | Yes |
Have additions or corrections you'd like to suggest for this table? If so, please contact us.
1Some limitations on post volume apply. See Mollom's pricing page for more information.
2May only be supported on some of Mollom's many CMS platforms, due to differences in the underlying CMS.