SSL certificate 'Resources unsecure'

I am working on a site which has an SSL certificate. The certificate is all setup, but there is the big ugle red cross through the secure https:// because of resources that are not secure开发者_运维知识库.

As it is a wordpress site, there are a few bits which are coming from other URL's - is there a way to get a complete list of these other resources that could be causing this?

Thanks!

---

Chrome's Developer Tools will tell you (I'm assuming you're using chrome because it's the only browser that I know of that has the cross through the https). Just hit ctrl-shift-j and reload the page. Each insecure resource should be logged in the console view.