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A Clean, no hassle contact form plugin for WordPress, with advanced Spam bot protection that doesn't require Captcha.

By: checkfront.

(1)
Last Updated: 6 years ago
10,000+ active installs
Compatible up to: 3.0.5
(17)
Last Updated: 11 months ago
10,000+ active installs
Compatible up to: 4.2.9

Comment spam prevention without moderation, captchas or questions

By: benohead and amazingweb-gmbh.

(2)
Last Updated: 1 year ago
2,000+ active installs
Compatible up to: 4.1.12

Block 250+ spam sites, such as semalt.com and 4webmasters.org! Keep your website safe and your Google Analytics statistics clean and accurate.

By: Roger Rodrigo.

(4)
Last Updated: 11 months ago
1,000+ active installs
Compatible up to: 4.2.9

Best CAPTCHA solution, prevent spams, you can customized CAPTCHA challenge text and have people type Captcha it, better Captcha experience.

By: steve boomcaptcha.

(5)
Last Updated: 4 years ago
900+ active installs
Compatible up to: 3.3.2

WordPress plugin to fight with 300 referrer spammers (like semalt, buttons-for-website and many more).

By: rolandinsh.

(1)
Last Updated: 1 day ago
700+ active installs
Compatible up to: 4.5.3

The best captcha alternative. Accessible, Mobile-friendly, and Retina-ready!

By: brunobernardino and jmigcosta.

(9)
Last Updated: 11 months ago
500+ active installs
Compatible up to: 4.2.9

Brute Force Login Security, Spam Protection & Limit Login Attempts. IP Blocking, Firewall Security, Anti Spam, protect site from hacks and malware

By: miniOrange.

(1)
Last Updated: 2 weeks ago
500+ active installs
Compatible up to: 4.5.3

SiteBrains blocks spam posts using a completely configurable set of rules. Both interactively as the user types and on our servers upon submission.

By: SiteBrains).

(0)
Last Updated: 5 years ago
100+ active installs
Compatible up to: 3.2.1

Unspam makes it harder for spammers to automatedly send spam to your blog by changing the names of the fields in the comment forms.

By: Matt Lowe.

(1)
Last Updated: 7 months ago
100+ active installs
Compatible up to: 4.4.4

Check comment against the SpamBot Search Tool using the IP address, the email and the name of the poster as search criteria.

By: Xavier Media and Dave Ross.

(0)
Last Updated: 4 years ago
100+ active installs
Compatible up to: 3.3.2

Tolero wordpress blog spam filter checks the submiter's bahavior. To operate properly it should have a physical access to the apache log file.

By: Tolero.org.

(0)
Last Updated: 9 years ago
40+ active installs
Compatible up to: 2.1.2

WP Spam IP is a simple and effective WordPress plugin that adds known Spam IP adresses to your Settings -> Discussion -> Comment Blacklist.

By: Damir Calusic.

(0)
Last Updated: 2 years ago
20+ active installs
Compatible up to: 4.0.12

Prevent people from registering with emails that contain a subdomain to help reduce spam.

By: jamiechong.

(0)
Last Updated: 2 months ago
10+ active installs
Compatible up to: 4.5.3

Show spam statistics on your blog. (Now merged into SpamTask)

By: runejensen.

(0)
Last Updated: 7 years ago
516 downloads
Compatible up to: 2.7.1

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