View result counter Edit link Name Description Community Tags Auto Tags (AI generated) Community Notes Open Issues
1 hashcash

Uses the Hashcash proof-of-work system to avoid some forms are submitted too quickly.

0
2 Mail Disguise

Backdrop CMS module to obfuscate email addresses in content

0
3 Protected Forms

Protected Forms is a light-weight, non-intrusive spam protection module that enables rejection of all non-admin form submissions which contain undesired language scripts or preset patterns.

0
4 Captcha Riddler

Backdrop CMS spam prevention module

0
5 SpamSpan

Obfuscates email addresses to help prevent spambots from collecting them.

0
6 Spam Bot Blocker

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

0
7 X-Originating-IP

Add the X-Originating-IP header to all outgoing Backdrop emails to assist with investigation of the sources for spam and unsolicited bulk email.

0
8 AYAH

Backdrop port of the AYAH (Are You A Human) contrib module

0
9 Facet Bot Blocker

It detects and blocks crawlers/bots that keep requesting deeper levels of facet parameters.

1
10 Anti-Spam by CleanTalk

Blocks spam submissions without CAPTCHAs, uses the CleanTalk service.

1
11 Turnstile

Uses the Turnstile web service as an alternative to CAPTCHA to protect forms.

1
12 Http:BL

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

1
13 Invisimail 1
14 Cloudflare

CloudFlare is a FREE reverse proxy, firewall, and global content delivery network and can be implemented without installing any server software or hardware.

1
15 Node Feedback

Node Feedback shows a form, in a block you can place on a node condition layout, to collect feedback from users for a given node type entry.

2
16 Antibot

A lightweight module designed to eliminate robotic form submissions on your website.

2
17 Akismet

Protects Backdrop CMS site from spam by sending user-submitted content to the Akismet anti-spam service.

3
18 CAPTCHA

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

3
19 Spambot

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

3
20 Fivestar

Enables fivestar ratings on content, users, etc.

4
21 Honeypot

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

4
22 reCAPTCHA

A Backdrop CMS port of drupal.org/project/recaptcha, uses the reCAPTCHA webservice to improve CAPTCHAs on forms.

5
23 Restrict Abusive Words

Prevent content and user accounts from being created if they contain specific words or phrases

6