Its most likely to be a TrackBack or pingback: In a nutshell, TrackBack was designed to provide a method of notification between websites: it is a method of person A saying to person B, “This is something you may be interested in.” To do that, person A sends a TrackBack ping to person B.
I use the SI CAPTCHA Anti-Spam Plugin in combination with protecting the Site with Cloudflare. Got rid of 99,9% of the Registrationspam, from over a thousand a day to 1-2 a day.
Emails not getting delivered to Hotmail addresses
WordPress Site has 35K spam images
Automated spam being caught in 2 posts. Can this be used to help get rid of spam on everyone’s sites?
The decision about comment status upon posting is made by wp_allow_comment() function. There is a filter in it that can be used to change it accordingly. Basic form would look something like this (not tested): add_filter( ‘pre_comment_approved’, function( $approved, $commentdata ) { if ( ! empty( $commentdata[‘comment_author_url’] ) ) { return ‘spam’; } return $approved; … Read more
All users/comments suspected as bot? [closed]
How do I programmatically set a user as spam in BuddyPress? [closed]
@janoChen, The problem could be that your email server is not using Domain Keys or a valid spf record DomainKeys is an e-mail authentication system that allows for incoming mail to be checked against the server it was sent from to verify that the mail has not been modified. This ensures that messages are actually … Read more
What are your privacy settings? Go to Dashboard -> Settings -> Privacy If it is set to I would like my site to be visible to everyone, including search engines (like Google, Bing, Technorati) and archivers, then your site is actively being crawled/indexed by search engines, and thus visible to spammers. If it is set … Read more