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There are no boundaries on the lookback minutes. You can choose 10 minutes or 5000 minutes or more.
Minimum Request Threshold: the number of requests a demand tag must receive within the lookback window in order to be eligible for optimization
- A low min request means more impulsive ad server decisions
- A high min requests results in more accurate prioritizing
Note: If a demand tag does not reach its min requests within the lookback window its priority will not change
Notes on How to Select your Optimization Parameters
A poor poorly performing tag that is low in your waterfall has trouble climbing back up. It must compete against the tag in the next lowest priority and produce better results, which is rare.
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- How much request volume does the supply tag get (the ? The more request volume, the shorter you can set lookbacks with higher min requests and still get actionable market driven optimization with accuracy)more actionable optimization can be.
- Where is the tag being trafficked? If its going into another adserver ad server in to another waterfall, does that waterfall also auto opti? Does it prioritize you based on fill? If so, fill based metric might be best. If it is going to a player... potentially , response time or score could be better
- How often to you plan on monitoring performance? If you are going to watch it closely, you can use short shorter windows with low min requests and reprioritize your waterfall manually if need be. If you want it more on 'auto pilot' a longer window with higher min requests is better. Keep in mind, when you use quick stats for optimization, and and you have a short window and low min requests, it is easy to think the adserver is making the 'wrong' decision, but the ad server is looking at a snapshot, and in quickstats you are looking at a full hour, day, yesterday, or 7 days.
- What is the most important metric to you: Latency? Profitability? Positioning in your publishers waterfall.? Depending on these factors - Response Time, Score, and Opp/Request Fill respectively. If you want to take into account multiple aspects, select a speed metric.
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