Each content page can undergo an internal SEO analysis. It shows you how the page is viewed by a search engine.
Edit a page and then click on the "SEO" tab. The analysis will run automatically.
The first section shows you the basic elements of the page. Here you can see if you have set meta information sensibly. The loading time indicates how long it took to download the page.
With the tag analysis, you can determine how often different tags occur. The H1 tag should, for example, only appear once.
Using the weighting table, you can see which terms are rated higher than others from a search engine's perspective.