When users hit a 404 error, capturing the exact URL and time helps track down...

https://sierra-wiki.win/index.php/How_Do_Query_Parameters_Cause_a_404_on_Some_Sites%3F

When users hit a 404 error, capturing the exact URL and time helps track down the missing page quickly. Some sites add a playful touch with messages like "Whoopsiedoodles!" to ease frustration