WordPress comments, by default, include a website field. This also creates a link on the author’s name.
First off, this is bad for spam, as many users will attempt to comment on your site to get a backlink. While this link has a
nofollow attribute, many commenters don’t care. And you’ll end up getting spam like this below which had the website field visible.
Second, this can also impact performance in a roundabout way as bots will regularly scan comments on your site if this field exists.
In our Perfmatters plugin, you can simply remove comment URLs altogether. This will make it apparent to a commenter that there is no backlink involved.
How to remove comment URLs
To remove comment URLs, click into the “Options” tab of the plugin and scroll down and enable the “Remove Comment URLs” option.
Below is how a comment form in WordPress looks by default.
Below is how a comment form in WordPress looks after you have removed the website field (comment URL).