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Ah ok. But why then doesn't the ad's embed code just contain the URL of the page it's on in the query string / POST data? The (website that shows the ad's) serv
by sleavey 9y ago
Ah ok. But why then doesn't the ad's embed code just contain the URL of the page it's on in the query string / POST data? The (website that shows the ad's) server knows what page it is providing.
- andrewaylett 9y agoI suspect it does? But that's spoofable by the ad aggregator in a way that the Referer header isn't. So much of ad design is (for better or occasionally for worse) defending against bad actors.