How do I properly use 'curl add header' to include custom headers in my requests?

Hey! For `curl add header`, you’re doing it right. Stacking `-H` is the standard way.

If you’re testing a lot, consider using a tool like Insomnia. It’s great for debugging APIs and lets you easily add/remove headers.

Also, if you’re on Windows, sometimes the command line can mess with quotes. Try using double quotes for the URL and single quotes for headers:
`curl -H 'Header1: value1' -H 'Header2: value2' "https://example.com"`