CTAs match user intent inferred from content. Here is where you’ll evaluate whether the CTAs match the user intent from the content as well as the CTA language. For instance, if a CTA prompts a user to click “for more information,” and takes them to a subscription page, the visitor will most likely be confused or irritated (and, in reality, will probably leave the site).
Geofencing mostly uses GPS technology (which communicates with the tiny chip in your phone) to cordon off an area with a virtual fence. When a device moves into (or out of) the space defined by the fence, triggers are sent, and the user will receive a notification, for example a text or push notification (provided they are opted into those channels).
Now the ad servers don’t create this table themselves, they license it from another ‎company like MaxMind or DigitalEnvoy, whose primary business is geolocation ‎data.   This is no enviable task; IP addresses themselves don’t necessarily have an ‎obvious pattern in the way they are assigned like a telephone area code would.  It’s ‎a bit like solving a mystery, and the geolocation companies use a variety of ‎methods to approach the problem.  ‎ /injects>