A “referral URL” is one of many signals we use to deliver contextually relevant ads on your website. The referral URL contains information about the link a user followed to arrive at your website, whether from a search engine or another site on the Internet. Any webmaster for any site can look at referral URLs to see how users arrive at their site.

Let’s see how this works today when a user arrives at your golfing advice website from a search engine results page. Imagine that someone searches on Google for [golf shop atlanta] and clicks on a search result that takes them to your site. The referral URL that is passed to your site may look something like this: http://www.google.com/search?q=golf+shop+atlanta. I’m using Google as an example here, but the same type of information is transmitted if a user arrives at your website from another search engine.

To deliver the most relevant ad, we treat the query words [golf shop atlanta] in the referral URL as if they’re part of the content of your webpage. We can then better tailor the ad we deliver on your site. In this example, we could use the additional information from the query words to show an ad for a golf shop in Atlanta rather than for one in Chicago (depending on the other words in the page).