The request body for calls to healthchecks looks like this:

This is quite hard to read. The warning via e-mail and notification services connected to healthchecks shows this info when it sends out warnings but you can't easily see in the notifications what's going on when in json.

Can this be configured in the field for template? Please ELI5 if possible. ;)

For other software/solutions it could look like this: (this is from duplicati):

(pics from healthchecks)