Empowering founders to build the impossible.

Reducing Drupal blog spam

Spam—we all hate it and it’s not just for email anymore, hello Drupal comment spam.

To determine what is effective at preventing Drupal spam, I decided to run a little case study when I redesigned this site and the following are the conclusions I drew from trying a number of different combinations:

  1. A Drupal 5 site that allows anonymous user comments will be consumed by spam. I was receiving over 500 spam comments a day on this site.
  2. Changing the comment settings to *force* a comment preview for anonymous users reduced spam by 80%, but I was still seeing around 100+ a day.
  3. Adding in the captcha module reduced spam even further by about 90%, to only a dozen or so.
  4. To catch the remaining spam, I added in the Akismetmodule which was then able to filter out the remaining 98-99% of spam, with only possibly 1 or 2 every few days slipping by.

Of course, if I forced my users to signup and verify their accounts I probably wouldn’t have much of a spam problem to begin with, but why should I put that extra burden on my users? :-)

Leave your comments, but eat your own spam :-)

Subscribe to Ted Serbinski

Sign up now to get access to the library of members-only issues.
Jamie Larson