As suspected, Google is moving to secure search for clicks on paid search ads. Google made the announcement yesterday:
“Today, we are extending our efforts to keep search secure by removing the query from the referrer on ad clicks originating from SSL searches on Google.com.Advertisers will continue to have access to useful data to optimize and improve their campaigns and landing pages. For example, you can access detailed information in the AdWords search terms report and the Google Webmaster Tools Search Queries report.”
What is affected in CTM?
As your calls come in, we have traditionally immediately reported the search query the user typed into the search engine within the source detail column of the call log. That information will likely say “not provided” going forward.
Similarly, the search queries will increasingly show up as “not provided” in the calls by search term report.
If this information is critical for you to receive right away for your calls, we recommend adding parameters to your URL’s in Adwords using ValueTrack. How to use ValueTrack parameters in your destination URL’s),
What wont be affected?
You will still be able to see the keyword that generated the ad click (as opposed to the actual query as described above) in the call log as well as in the calls by ad keyword report and this information will be available through our API, in our sync to GA etc. Nothing will be changing about that information. This information is just typically not populated for an hour or two after the call comes in due to the time it takes to get it from google.
We will post more as we learn more!