I'm in the middle of some work which includes touching the 856s in lots of MARC records pointing to websites we control. The websites are available on both https://example.org/ and http://example.org/ Can I put //example.org/ in the MARC or is this contrary to the standard? Note that there is a separate question about whether various software systems support this, but that's entirely secondary to the question of the standard. cheers stuart -- ...let us be heard from red core to black sky