If you use the Nominatim API from Open Street Map, once in debug mode and once without debug mode you get different data.
Example URLs:
https://nominatim.openstreetmap.org/reverse.php?lat=51.06810&lon=8.79765&zoom=18&format=jsonv2
Important for me is especially the 'website' field, which is present in debug mode, but not otherwise.
How can I get all the data?
Use extratags to get this data: