Why we need anti-spam plugin
If you are using WordPress blog or website then sometimes you get an irrelevant or malicious comment in your blog post. Sometimes you get lots of same comments with same email ID. So anti-spam plugin used for this.
What plugin is good and free
Akismet is the most powerful anti-spam plugin for WordPress. It filters the spam comments, which is a more important thing for any blogger. It checks all your comments for irrelevant and malicious comment and removes them.
It’s a simple and affordable plugin.
You can use it free too. You need an API key to activate that too.
You can get an API key here.