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.

Umbrovskis.com

List of spammers in <a href="https://wordpress.org/plugins/wp-referrer-spam-blacklist/faq/" rel="ugc">FAQ</a>.
No need for configuration! Plugin in background redirects referral spammer to blank page ( about:blank ). Redirect link can be altered via filter <code>wp_referralblock_redirect_uri</code>.
NO auto update, as we see that as possible as security hole. We do not wan’t Your site to get hacked.
Plugin is for sites that can’t edit their <code>.htaccess</code> or configure NGINX or Apache servers.
Via <a href="http://go.mediabox.lv/1LbSuKq" rel="nofollow ugc">my LinkedIN post</a>: Few months ago I started to collect referral spam pages in private file un bitbucket.org. Problem was that I did not know all spammers. Then, few weeks ago, I found that Matomo (Open source analytics) started their own “project”, and they did the same thing I did – collected referral spam sites to block them from Your website.
On my own server I do that at server level, but some of my clients have hosting, where You can not edit server settings. This week I came up with another solution – WordPress plugin “WP referrer spam blacklist”. I will update list every week from <a href="https://github.com/matomo-org/referrer-spam-blacklist" rel="nofollow ugc">Matomo’s community-contributed list of spammers</a>.
If You have WordPress site and no knowledge about or access to server settings, I made that for You!
From <a href="https://en.wikipedia.org/wiki/Referer_spam" rel="nofollow ugc">Wikipedia</a>:
<pre><code>Referrer spam (also known as log spam or referrer 
bombing) is a kind of spamdexing (spamming aimed 
at search engines). The technique involves making 
repeated web site requests using a fake referer URL 
to the site the spammer wishes to advertise. Sites that 
publish their access logs, including referer statistics, 
will then inadvertently link back to the spammer's site. 
These links will be indexed by search engines 
as they crawl the access logs. 

This benefits the spammer because the free link improves 
the spammer site's search engine ranking owing 
to link-counting algorithms that search engines use.
</code></pre>
Other plugins by author: <a href="https://wordpress.org/plugins/itempropwp/" rel="ugc">itemprop WP for SERP/SEO Rich snippets</a> – Add schema.org itemprop code to the (custom) post content for search engines and bots for better SERP results

WP referrer spam blacklist (fight 2040+ Referrer Spammers in (Google/Matomo) Analytics)

WordPress plugin to fight with 2040+ referrer spammers (like semalt, buttons-for-website and many more).

Language-based Comment Spam Condom vs WP referrer spam blacklist (fight 2040+ Referrer Spammers in (Google/Matomo) Analytics)