Adding scripts and links to the page head
![](http://images.ctfassets.net/lizv2opdd3ay/6pCPvKQu2HZzBhV9kpCcoj/0b3b1040937acf9271e212dd664ae473/CleanShot_2023-11-07_at_23.44.57.png)
Be very careful when loading external JavaScript! You are essentially trusting the script provider with access to all the data available on the page. Unless you are 100% sure you trust the provider DO NOT add any external scripts to your application.
Custom fonts
![](http://images.ctfassets.net/lizv2opdd3ay/1sfOUBvBfAvAMNYwdbCfCn/5cc8c5ed9c6e2f3619a88e41889e9e27/CleanShot_2023-11-07_at_23.59.47.png)
Always keep in mind that adding additional assets to the page head will increase the page load time . While lots of tools might seem useful, they often come with a degraded user experience due to slower load times.