When making DNS changes, you can speed the process along by clearing some of the popular public DNS caches that exist on the internet.
This might be old news to people, but it was brand new news to me, so I’m sharing in case this is useful to anyone else.
Here are the ones I’ve recently learned about.
Each service has a slightly different form, but essentially you tell it the domain to remove from it’s cache, an act called purging, and hopefully this means the internet will see your DNS changes a bit quicker.
Again, this has probably been a thing for years and years, but hopefully it helps!