Just to throw this in here for future reference. Our standard URL max length is 1 MB. It is configurable if you need it, using network.standard-url.max-length, but 1 MB is the default, i.e. 1048576.
Note that this might not be the actual maximum character length due to multi-byte IDN characters, extended characters, and URL-encoding.
Note that this might not be the actual maximum character length due to multi-byte IDN characters, extended characters, and URL-encoding.