The Google Webmaster panel index says:
Update: As of 5/14/16, Index Status data precisely reflects the specific URL variant for your verified site (e.g.,
http://www.example.comdata is distinct from
Is this saying the index count for
https://example.com are now counted separately, and if so is it based on protocol or subdomain?
Learn More link (https://support.google.com/webmasters/answer/6211453#indexed) brings me to a page that says
May 15, 2016
A data anomaly caused a dip in the data on this day.
May 15th Google Index brings back a variety of user experiences all showing on that date something happened. The results since then have been varied though. Our site since that day has had a +1.5 million index dip.
Is this a real issue or just a reporting bug? Searching
site:example.com brings back the same number the webmaster panel has (so I'm presuming not a bug).