In theory the 1st indicator dictates the protocol used and 4 =HTTP. However, in all examples on http://www.loc.gov/marc/bibliographic/bd856.html, despite the indicator being used, the protocol part of the URI it is then repeated in the $u field. You can put ‘7’ in the 1st indicator, then use subfield $2 to define other methods. Since only ‘http’ is one of the preset protocols, not https, I guess in theory this means you should use something like 856 70 $uhttps://example.com$2https I’d be pretty surprised if in practice people don’t just do: 856 40 $uhttps://example.com Owen Owen Stephens Owen Stephens Consulting Web: http://www.ostephens.com Email: [log in to unmask] Telephone: 0121 288 6936 > On 17 Aug 2015, at 21:41, Stuart A. Yeates <[log in to unmask]> wrote: > > 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