At my company, we just have a standardized remote management suffix that we just throw at the end of the hostname, so we don’t actually track the urls. For example the server is named frosty, the url would be frostysuffix.
Then we track our servers with either an outdated access database that nobody updates, my locally saved personal Excel sheet, or by logging into one of the 4 different health checking applications that each monitor a piece of the infrastructure. (This part actually really sucks and I hate it.)
