Choose ad sources

Once you've set up AdMob Mediation, you can choose which ad sources to use. Ad sources are third-party ad networks that can serve ads through AdMob Mediation.

Supported ad sources

AdMob Mediation supports a wide range of ad sources. See the list of integrated ad sources for details on each network.

Choosing ad sources

When choosing ad sources, consider:

• Fill rate: How well the ad source fills ad requests in your target regions
• eCPM: The effective cost per mille (thousand impressions) the ad source provides
• Ad formats: Which ad formats the ad source supports
• Integration complexity: How easy it is to integrate the ad source

Bidding vs Waterfall

AdMob Mediation supports two integration methods:

• Bidding: Ad sources compete in real-time for your ad inventory. This is the recommended method.
• Waterfall: Ad sources are prioritized in a sequential order.

For more information on bidding, see Troubleshoot bidding.