Kofi Mokome

Enhance your website’s security and user experience with humanID – the anti-bot authentication created by the Foundation for a Human Internet, a nonprofit backed by Harvard and Mozilla. With humanID, your users can enjoy anonymity and seamless access, while automated and previously blocked users are stopped in their tracks. Say goodbye to frustrating CAPTCHAs and free up to 90% of your time spent reviewing comments, all while keeping your website secure. Whether you use WordPress or not, you can easily integrate humanID with your website’s contact form, including popular plugins like Contact Form 7. 
Try humanID today and see the difference it can make for your website’s security, user experience, and your own workload
<h3>How to Contribute</h3>
The source codes can be downloaded here <a href="https://github.com/human-internet/humanid-spam-filter" rel="nofollow ugc">GitHub</a>

humanID – Anti-Spam Comment Filter || Stop junk comments & Protect your users' privacy. 100% open source.

Replace ReCAPTCHA with a faster, user-friendly solution and block spammers & bots permanently

blackmelvyn

tiger

This plugin has been developed by BlackMelvyn from this <a href="http://www.theblackmelvyn.com/" title="SEO Black Hat blog" rel="nofollow ugc">blog SEO Black Hat</a> thanks to a script coded by Tiger from <a href="http://www.seoblackout.com/" title="Référencement Google" rel="nofollow ugc">Blog SEO BlackOut: Techniques référencement Google</a>. 
It compares the language contained in the comment text to the languages that you allow in your admin panel for this blog. 
There is a minimum confidence index that should be reached for the comment to be considered as valid. 
Then, if the comment is sorted a valid, it is held for moderation. 
On the other hand, the plugin counts the number of links contained in the comment, and if there is a suspicion of comment spam, it blocks the comment and adds it to trash. 
Finally, you get rid of all these automated spam bots that try and spoil your blog with their nasty unuseful comments, you save database space and you save time as you do not have to sort out what is spam and what is not! 
We recommend that you use this plugin in conjunction with the keywords filter built in WordPress for more efficiency.

Language-based Comment Spam Condom

This plugin prevents comments spamming using language verification.

humanID – Anti-Spam Comment Filter || Stop junk comments & Protect your users' privacy. 100% open source. vs Language-based Comment Spam Condom