It would be helpful if comparelive.jsp would default to the current day when called without the dt= parameter.
This works for a specific date (today, in this example, but useless as a bookmark):
https://pvoutput.org/comparelive.jsp?sid=82272&sid1=82274&dt=20260115
This returns Not Found 404:
https://pvoutput.org/comparelive.jsp?sid=82272&sid1=82274