> For the complete documentation index, see [llms.txt](https://acolono.gitbook.io/acona/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://acolono.gitbook.io/acona/developer-documentation/faqs.md).

# FAQs

**What is the difference between Performance Metrics and Page Variables?**\
\
Performance Metrics are all of type integer and already aggregated (e.g. by day). They measure the performance of a specific url, e.g. how many times a user visited the page.<br>

Page Variables define a specific state of the page for a given time. It can be integer (e.g. number of headings), holding text (e.g. the Metadescription) or boolean (e.g. if breadcrumbs are present).