Google Documents How to Identify Search Traffic in Analytics and Server Logs

A Google Search help page explains which referrer values Google Search sends, why some Search visits arrive with no referrer, and why traffic counts in analytics and logs can differ from Search Console. The guidance helps site owners attribute organic visits accurately in their own tools.

Why it matters: Marketers who report organic performance from GA4 or server logs need to know these referrer gaps and count differences to avoid misreading SEO results.