I remember years ago there used to be a widget you could use from the Google Custom Search engine that allowed you to embed details of popular searches on your public web pages. I have been looking for the documentation again for that recently so I can implemement it on a site that has a Custom Search Engine but now cannot find it - even with Google! Is this functionality still available or is it something that should be done with Google Analytics.
For an answer I am looking for links to official documentation.
There's a Custom Search help page that discusses this. Custom Search Help: Stats
The Stats tab of the Statistics and Logs page shows you popular queries for your Custom Search Engine. You can view this info by day, week, month, or year—even the entire lifetime of your search engine. The Stats page provides accurate data about the search usage and the total number of searches completed.
To display popular queries on your site (for example, to help searchers find popular pages), copy the code in the Popular web queries page and paste it into your pages.