The plugin prevents unauthenticated users from leaving comments using the email address or username of a registered user

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The website URL field in the comment form attracts those who want to use backlinks to improve their search engine rankings for certain keywords. Their goal in leaving a comment is to get a backlink, not to actually contribute to the discussion.

The Comment Form's Website Field Attracts Those Who Wish to Use Backlinks for SEO
This means that their comments usually contain a line or two of irrelevant nonsense, and the name of the person who wrote the comment contains a keyword or a combination of a real name and keywords, such as “Sally from Dunder Mifflin” or “John @SEOconsultants.”

If you remove the website URL field from your comment form, commenters won't get the value of a backlink , which should lead to less comment spam. Real users will leave a comment on your articles whether they get a backlink or not.

To learn how to do this, check out our guide on how to remove the website URL field from the WordPress comment form .

8. Disable comments on media attachments
WordPress automatically creates an attachment page for list of algeria cell phone number every image and media file you upload to your site. Users can leave comments on these pages.

This can be useful if images are a central part of your content. If not, it's just another opportunity for spammers. If you don't need users to comment on images, consider disabling comments on media attachments.

The easiest way is to install and activate the Disable Comments plugin . For more details, see our step-by-step guide on how to install a WordPress plugin .

Once enabled, you need to go to the Settings » Disable Comments page and check the box next to the “Media” option.

The Disable Comments Plugin Lets You Disable Comments from Media Pages
Make sure to click the “Save Changes” button to save your settings. The plugin will now disable comments on your WordPress media files and attachments.