Eric Mann

If you’re like me, you probably have to wade through a few hundred spammy comments on your blog. It can be annoying, stressful, frustrating, and a waste of time. Beyond that, spammy comments can fill up your database and make it a lot bulkier than it needs to be – particularly if you need to transfer it to a new server.
ClearSpam makes this a lot easier for you by adding a spam counter to the “Right Now” box on the dashboard along with a link that lets you instantly and easily purge spammy comments from the database. The plugin uses WordPress nonce filters, so people won’t be able to use the plugin to delete legitimate comments.

ClearSpam

Painlessly purge spammy comments from your WordPress database to save space.

Javier Casares

Joan Artes

WordPress Varnish as a Service is a plugin for <a href="https://www.varnish-cache.org/" rel="nofollow ugc">Varnish Cache</a> that purges/bans a cache server.
Supports Varnish 2 (purge) and Varnish 3 (ban) versions, Secret Key (for Admin Port) and HTTP Purge.
Based on <a href="https://wordpress.org/extend/plugins/wordpress-varnish/">WordPress Varnish</a> and <a href="https://wordpress.org/extend/plugins/varnish-purger/">Plugin Varnish Purges</a>.

WordPress Varnish as a Service

Clear your Varnish cache when new, edited or deleted content happens.

ClearSpam vs WordPress Varnish as a Service