SEOPanel - the name says it all.

[micmc]

And I'm pretty surprised that no one has ever suggested this before!
Check this out this is awesome and a must add to Cloudron imho, however it seems to be a quite easy app to install on a simple LAMP instance.

Totally FOSS - Free and Open Source Software, and powerful out of the box.
There also are available paid for plugins as addons, very much affordable.

The Link SEOPanel.org