I've been working on a simple opt-in solution, primarily for Lemmy end users like me (but also helpful for admins), to easily check the status/health of their favourite instance.
β @admins: would you be interested in adding your instance to lemmy-meter?
You don't need to do anything except confirming - I'll handle the rest. It should only take a few minutes for your instance to show up in lemmy-meter.
Out of the box it will send only 4 HTTP GET requests per minute to your instance. However that is totally configurable if it sounds too much or too little.