Comment spam handler systems include

Note: Akismet has received plenty of complaints, some from SEOs, and so not always easy to take seriously, but some seem worryingly legit.

It would be nice to support contribution to anti-spam projects such as

As always, we steal interesting ideas from Sam Ruby. For example:

Example from, which came from pressing "Preview" on comment form of . Comment preview HTML from Intertwingly: IntertwinglyCommentPreview.html.txt

Wikipedia has a useful survey of the issue


Sixapart has an excellent analysis of spam-fighting techniques, oriented towards MovableType, but nevertheless almost a must-read:

The Trac project has documented their own battle against spam:

See also

Bright_Content/Architecture/AntiSpam (last edited 2008-12-30 13:24:32 by UcheOgbuji)