View result counter Edit link Name Description Community Tags Community Notes
1 Auto Purge Users Administration, Account Management, Spam control
2 AbuseIPDB report

AbuseIPDB report module for Backdrop CMS

Security, Spam control
3 Captcha Riddler

Backdrop CMS spam prevention module

4 Ban IP

Block site vistors by IP address

Security, Infrastructure, Access, Spam control

A Backdrop CMS port of, a challenge-response test on forms to determine whether the user is human.

Login, Security, Spam control
6 IP address blocking

Enables blocking of IP addresses.

Security, Spam control, Access
7 Http:BL

Implements Project Honey Pot's http:BL for Backdrop CMS by providing IP-based blacklisting and linking to a honeypot

Spam control, Security
8 Spam Bot Blocker

A "strong" CAPTCHA that is easy to use for site visitors and site admins.

Spam control
9 Honeypot

Backdrop port of Drupal module. Uses both the honeypot and timestamp methods of deterring spam bots from completing forms on your site.

Spam control
10 Spambot

Anti-spam module that uses data from to protect the user registration form against known spammers and spambots.

Spam control