In January, Moz reported that 25% of the Google search results were HTTPS. Meaning of the top search results Moz tracks, 25% of those were listed as HTTPS in the snippets. Well, now that number is up to 40% according to the Mozcast features tool.
Here is the chart:
Now, in July it was 30%, so the rapid growth seems unusually fast to me but numbers are numbers, right?
Pete Meyers from Moz wrote on Twitter:
Keep in mind, the indexing HTTPs by default was last December, so that didn't seem to change on Google's side. Maybe it is just more adoption by larger or more well-ranked sites? The HTTPS ranking boost I don't think was adjusted.
Gary from Google confirmed no change to the HTTPS ranking boost:
@rustybrick nope— Gary Illyes (@methode) October 27, 2016
Forum discussion at Twitter.