If you are a UX designer, then you might be aware of the service design cycle. This cycle contains four stages: discover, explore, test and listen. Each one of these stages has multiple research methods, and competitive analysis is part of the exploration. Susan Farrell has very helpfully distinguished different UX research methods and activities that can be performed for your project. (You can check this detailed segregation in her “UX Research Cheat Sheet”.)
Hi Ines! Was just going to come up with a reply for you and came across a new article on SELand: https://searchengineland.com/how-to-use-if-functions-to-speak-to-different-audiences-304836 explaining a useful technique for testing mobile-specific ad copy. I hope you'll find it useful! The only thing I would add is that you should have a decent amount of traffic to your landing page in order to get meaningful results. Good luck :)
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>
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