Ask HN: How does Google Analytics, a client-side script, get referring URLs?

2 pointsby mjswensenalmost 5 years ago

Shower thought: given that Google Analytics is installed by dropping a JavaScript snippet onto the page, how does Google get the referring page when visitors land on the page via link or search result, etc.?

1 comment

Hackbratenalmost 5 years ago

The script should be able to read `Document.referrer` and post the result to wherever it wants.

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