I'm looking for a module which will test an entire site with each an OS update, or a Drupal core update. E.g. go through each node and let me know there are
any 404 returned for JS or CSS files, broken broken links, any any white screens of death, etc.
And if possible if the response time of the site has drastically decreased.
I've done some search and can I only see references to SimpleTestSimpleTest used or unit testing. I'm looking at using Selenium at the moment.
How are other people testing sites after a core changes?