> For the complete documentation index, see [llms.txt](https://docs.metrical.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.metrical.xyz/developers/how-to-start-tracking-users.md). # First setup First, add a new website from [our website](https://app.metrical.xyz/new). After that, you will receive a UUID code that identifies your website's visits on Metrical. Then, open your HTML file and include these two lines at the end of your `` ```javascript ``` ## How about Single Page Apps? ✨Our script is ready to use also for Single Page Apps (React, Angular, Ember, Vue...)! Just include the script at the end of the `` and every changes to the history object will be tracked.