Currently it's almost impossible to detect trends as 5xx errors are buried at the feet of the peaks of gazillions 500 errors.
Perhaps it should also have a month-old report but that's less important.
(I wanted to check the amount of 504 errors in the last few days/weeks.)
Version: unspecified
Severity: enhancement
URL: https://gdash.wikimedia.org/dashboards/reqerror/
See Also:
https://launchpad.net/bugs/925635