If you manage a WordPress site, you definitely know about comment spam. Users leave all sorts of comments on your WordPress site and sometimes it can be quite an ordeal to manage the comments. Akismet is a plugin which comes bundled with WordPress. It is a service from the makers of WordPress which uses a special algorithm to identify spam comments.
To set up Akismet on your WordPress site, please read: Setting up Akismet on WordPress
Once you have set up Akismet, it will start filtering your comments for spam. If you have a lot of spam it might be tempting to ask Akismet to delete the spam, but we find it hard to trust a software too much, so we like to put spam comments through a further test.