Website Quality Alerts
Quality alerts indicate potential problems on websites. We identify and show these problems in the hope to provide a useful tool for webmasters to improve their sites.
We try not to duplicate information that can easily be found by other tools, such as HTML validators, however there will always be some overlap. Furthermore, we put some effort into verifying that an alert is likely to actually have any real impact. For example, we don't alert on a missing character encoding definition, when the page uses only ASCII characters.
This is an overview of all alerts. Click on the titles to get a description.