Clean Unused CSS on a website

HTML & CSS
1

Since SitePoint’s very own Dust Me Selectors has been abandoned I have been looking for a replacement tool for going through my Sitemap (or a list of URL’s) in order to find all the CSS that isn’t being used on the pages, so that I can clean it.

There are a couple of tools that claim to be able to do this, although to my knowledge none of them actually work. Most of the JavaScript ones die on a Sitemap with around 500 pages, let alone one with around 60k pages that I need to check for unused CSS.

I really need to reduce the size of this CSS file. It has been minimised and compressed as much as possible, but I’d say that at least half of the CSS in the main file is as good as useless.

Anyone know of an automated tool to do this?

2

No, sorry the only other one I knew of has been discontinued also.

I suppose you could use dust me selectors in an old Firefox version.

Looks like an opportunity for someone to create a good too to do this - they could even charge for it.