Rise of the (not provided) keyword
http://www.whereoware.com/blog/beginners-guide-to-google-search-consule/2015/05/
Under Search Analytics, Search Console spells out the most popular search queries driving people to your site and the search results generating clicks. (Search Console’s ability to deliver search queries is especially important, in light of Google Analytics’ change to SSL and ‘keyword not provided’ in metrics).
Making search more secure: Accessing search query data in Google Analytics - Analytics Blog
Google Search Console Tips
It also gives you impression versus click data, which is data Google never gave webmasters in Google Analytics
Using Google Webmaster Tools is currently the only reliable and accurate way to get keywords from Google encrypted search.
Under Search Analytics, Search Console spells out the most popular search queries driving people to your site and the search results generating clicks. (Search Console’s ability to deliver search queries is especially important, in light of Google Analytics’ change to SSL and ‘keyword not provided’ in metrics).
Analytics tip - Beginner’s Guide to Google Search Console | Whereoware
And a nice extension: Search volume & CPC for UberSuggest, Keyword Shitter, Google Search Console, Google Analytics and more use this addon with Google Search
Why? You’d have to ask Google that question. Webmaster Tools is useful, but it only shows the last 90 days’ data. blog.kissmetrics.com/5-alternatives-keyword-not-provided/
A nice treat that Google Webmaster Tools does give you: It will tell you the clickthrough-rate of your keywords from Google Search. And you can somehow fix it in Analytics: How to Unlock Your ‘Not Provided’ Keywords in Google Analytics
Holy fuck: Four More Ways to Crack the Keyword (not provided) Code Decoding Google’s Referral String (or, how I surviVED Secure Search) - Moz How to steal some ’not provided’ data back from Google | Econsultancy
Woow
Not Provided Count - Charting the rise of (not provided) in Google Analytics