Number of ads requested In general, the number of times an ad request is triggered is a single time. A request can request only one ad or multiple ads. For example, for an information stream advertisement, you can request multiple advertisements at one time to fill in the set advertisement position, or you can request each position once. Here, the cost of the request and the display experience are mainly considered. In addition, for the analysis of the media, it depends on how it defines the advertising space. We can divide the advertising space into slots, and view the recall from the dimensions of the advertising space and the subordinate slots of the advertising space. 4. METHODS OF AD REQUESTS Advertising requests are mainly divided into serial requests and parallel requests. The choice of which method mainly considers the number of layers of advertising sources and acceptable costs for the user to access.
In addition, in order to gain more revenue by accessing more advertising sources at one time, most developers generally access the mediation aggregation platform. There are three main modes of mediation requests: (1) WaterFall mode First go to visit SDK1, if SDK1 returns no advertisement, visit SDK2. Visit in sequence until an ad returns. (2) Fan Out mode Request all SDKs at one time, and select the ad returned in the shortest time. (3) Hybrid mode A hybrid mode, that is, all requests are made at once, and the highest ecpm advertisement is selected. 03 Ad caching mechanism After a user opens an app, the time they are willing to wait to load is always short. Limited by the duration of the user's stay in the scene, network conditions, and the type and size Phone Number List of advertising resources, if only the display resources are downloaded, the successful display rate of the advertisement will be greatly reduced.
Therefore, for the purpose of improving the display rate of advertisements, it has become a common practice in the industry to preload and display cached advertisements in advance for some ad slots in the request mechanism. 1. Control Conditions for Ad Cache Ad source: Determine which ad source channels can display ad cache by whether to turn it on or off. Ad Slots: Determine which ad slots need to be enabled for ad caching, such as screen-opening ad slots. Ad creative: Specify a certain type of resource that needs to be cached, such as video resources. Timing of ad caching: The ad is cached after the ad is completely displayed. Number of caches: Limit the number of caches for an ad slot to reduce unnecessary cache accumulation. Corresponding effective time: Set the time for automatic cache clearing, generally x natural days or x hours. 2. Trigger timing of cached ad display Ads are cached locally.