Yandex Mediation types

Yandex Mediation supports two ways of getting bids from advertising networks: Smart Waterfall and In-App Bidding.

Smart Waterfall

Smart Waterfall is an ML-based technology used in Yandex Mediation to predict which advertising network will offer the highest bid. For a list of ad networks connected to Yandex Mediation through Smart Waterfall, see Ad sources.

How it works

The advertising network and best impression price are picked automatically based on the thresholds. The app owner sets multiple thresholds for each advertising network manually.

Smart Waterfall uses this threshold information for two weeks to create a base for future predictions on which advertising network is mostly likely to buy your request for the highest price. This type of analysis is based on multiple factors, such as historical data, device type and user location and behaviour.

Based on this data, the platform composes an advertising network request plan and first selects the advertising network that's most likely to buy an impression for the highest price. If this advertising network is unable to pick a suitable ad, then the platform selects the next one. This goes on until one of the advertising networks responds with an ad.

These predicting capabilities enable you to increase the fill rate for your placement because no time is spent sending requests to all possible networks within all possible thresholds, which speeds up ad serving.

In-App Bidding

Unlike Smart Waterfall, In-App Bidding enables you to receive actual bids from ad networks in real time. In-App Bidding makes it easier to set up mediation by eliminating the need to add thresholds, which is something you need to do with networks that don't support bidding.

This feature is currently supported by the following networks:

How it works

When a user navigates to an ad screen, the app sends a request to Yandex Mediation. The platform then determines which ad from which ad network will bring the most revenue when displayed.

For networks that use In-App Bidding, Yandex Mediation requests bids directly from all networks in parallel.

Advertising networks connected via Smart Waterfall also compete for impressions. After the bidding networks respond, the ML algorithm predicts whether other networks can offer higher bids:

  • If the algorithm determines that it's possible, Yandex Mediation sends an ad request to the network.
  • Otherwise, it immediately serves the most profitable ad from the bidding network.

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