While crawling a website for an onpage project we find all resources used on it: pictures, JavaScript, CSS and more. Due to us listing all of them in a clear and filterable table, you can easily find out which elements are particularly large and bind many of your resources. Or, which ones were unreachable during the crawling process, for example by returning a status code 404.
At one glance you can spot the biggest problems and at the same time the highest chances for optimisation.