Hi,

since several people on this list are working with zero logs, please be aware that it seems the X-Analytics header was changed behind our back with

https://gerrit.wikimedia.org/r/#/c/119795/

. So while you were loosing hardly anything up to now, if you scripts didn't handle the list-nature of X-Analytics, this changed considerably in the last few hours.

Please make sure your zero-handling scripts properly handle the list-nature of X-Analytics, or you will loose a considerable amount of zero traffic otherwise.

Newly, fields in X-Analytics column seem to be * https=1 (if the request came through https) * proxy=Opera (if the request came through an Opera proxy to us)

I hope the Wikipedia Zero team will soon update

https://wikitech.wikimedia.org/wiki/X-Analytics

with a more authorative description.

Have fun, Christian

P.S.: Note that (maybe related to this change), some zero tags are now doubled: https://bugzilla.wikimedia.org/show_bug.cgi?id=62922