![](https://lemmy.world/pictrs/image/f3ca1b07-198a-4ea2-8baa-dc103dd58892.webp)
![](https://lemmy.world/pictrs/image/eb9cfeb5-4eb5-4b1b-a75c-8d9e04c3f856.png)
Before displaying a page it searches the content and injects a referrer tag to the end of URLs that match certain things. This is done instantly.
E.g. If there’s a Binance URL on the page it’ll add something like ?ref=bravebrowser
Binance will pick up that tag and give them money for any sign ups. Brave do this for any crypto services they have affiliate accounts with.
Horses for courses.