1. Clicking on an ad:
- https://google.com : Google will take you to an HTTP redirection page where they'd append your search query to the referrer information.
- https://encrypted.google.com : If the advertiser uses HTTP, Google will not let the advertiser know about your query. If the advertiser uses HTTPS, they will receive the referrer information normally (including your search query).
2. Clicking on a normal search result:
- https://google.com : If the website uses HTTP, Google will take you to an HTTP