SiteImprove is a web quality assurance tool. We use it to monitor and report on the core Computing Sciences Area websites. It reports on issues in three broad categories: 

1) Content quality (broken links, readability, misspellings, stake content, etc.); 

2) Search engine optimization (SEO); and 

3) Accessiblity.

If you own or edit web content, you should request a SiteImprove account.