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Very light invisible method to block auto-spam when spam comment is posted. Pings and trackbacks cheks for real backlink.

By: Tkama.

(4)
Last Updated: 2 years ago
800+ active installs
Compatible up to: 4.0.12

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

By: rolandinsh.

(1)
Last Updated: 3 weeks ago
700+ active installs
Compatible up to: 4.5.3

Searches all content for "mailto:" links, then unicodes them to protect from spiders. No Javascript required!

By: dubhunter.

(0)
Last Updated: 6 years ago
700+ active installs
Compatible up to: 2.9.2

WordPress SuperSonic with CloudFlare

By: kursorA.

(8)
Last Updated: 5 months ago
700+ active installs
Compatible up to: 4.4.4

A simple plugin to hide emails from spambots. Simply use the shortcode [hide_email myemail@mydomain.com] to hide myemail@mydomain.com from harvesters

By: Adam Sargant.

(5)
Last Updated: 4 years ago
700+ active installs
Compatible up to: 3.4.2

Antispam for bbPress 2.x

By: Daniel Hüsken.

(3)
Last Updated: 2 years ago
600+ active installs
Compatible up to: 4.0.12

Stop spam bots from registering, logging in, filling out contact forms and commenting on your site without using annoying Captcha codes or puzzles.

By: oxfordbio.

(13)
Last Updated: 6 months ago
500+ active installs
Compatible up to: 4.4.4

This Plugin provides very simple and powerful captcha for your blog with wide variety of captcha methods and models.

By: vinoth06.

(4)
Last Updated: 12 months ago
500+ active installs
Compatible up to: 4.2.9

This plugin protects your registered user base by preventing registration with a disposable email addresse (like the ones provided by mailinator).

By: philippe.

(4)
Last Updated: 2 years ago
500+ active installs
Compatible up to: 3.8.15

Provides options to disable the commenter's website and deactivate links in comments. Extra protection from spammers, best used with Akismet.

By: budhiman.

(0)
Last Updated: 5 years ago
400+ active installs
Compatible up to: 3.1.4

This plugin prevents comments spamming using language verification.

By: blackmelvyn and Tiger.

(0)
Last Updated: 5 years ago
400+ active installs
Compatible up to: 3.3.2

TheThe CAPTCHA is a WP plugin that blocks spam from comment boards and registration forms by generating simple tests that only humans can easily pass.

By: thethefly.

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

Simple plugin to prevent spam-bots registration on your site. Allows you to create an unique question, easy for humans, but not solvable for the bots.

By: dikiy_forester.

(12)
Last Updated: 3 years ago
300+ active installs
Compatible up to: 3.5.2
(2)
Last Updated: 3 months ago
300+ active installs
Compatible up to: 4.5.3
(1)
Last Updated: 2 months ago
300+ active installs
Compatible up to: 4.5.3

Add Hashcash spam protection to Contact Form 7.

By: Abdussamad Abdurrazzaq.

(3)
Last Updated: 3 years ago
300+ active installs
Compatible up to: 3.8.15

Jax Contact form with captcha is simple plugin for your WordPress blog that enables you to have a contact form with the reCAPTCHA validation field.

By: Alagappan Karthikeyan.

(1)
Last Updated: 5 years ago
300+ active installs
Compatible up to: 3.3.2

Adds a shortcode which converts email addresses to HTML entities to block spambots.

By: Dustin Filippini.

(4)
Last Updated: 3 years ago
300+ active installs
Compatible up to: 3.5.2

This plugin will make your blog more secure by adding rules which spambots will not pass.

By: mythemes.

(0)
Last Updated: 2 years ago
300+ active installs
Compatible up to: 3.9.13

A simple comment spam prevention plugin.

By: Sverigedemokraterna IT.

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

Simply enables WordPress shortcode for easily letting you camouflage an email address, hiding it from crawling spiders and bots.

By: maxemil.

(1)
Last Updated: 5 years ago
200+ active installs
Compatible up to: 3.04

This plugin allows you to view the full Bad Behaviour logs from within WordPress.

By:

(0)
Last Updated: 8 years ago
100+ active installs
Compatible up to: 2.7

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

Protect your email address from spam bots. In other words "fool the bots". With the "nospam" short code, you can call the function

By: iniyan and vinothg.

(1)
Last Updated: 2 years ago
100+ active installs
Compatible up to: 4.1.12

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