About the Mediation waterfall

[Paul Yip]

Hi,

There is another problem about the mechanism of the mediation.  If I added 5 networks as below.

Facebook Audience network - ecpm $5

Vungle - ecpm $4

Chartboost - ecpm $3

Adcolony ecpm $2

Admob automatically

When the call load request as below.  Will it send the request to all networks or just the top 3, i.e. Facebook Audience Network, Vungle and Chartboost?  Will it send request to Adcolony or Admob?

GADRequest *request = [GADRequest request];

[self.interstitial loadRequest:request];

I'm thinking that if it send all the requests from the user's smartphone to the server, it will make the smartphone busy especially some Adnetwork like Vungle will automatically cache video on the phone.  It will affect the show rate of the AD as some of them will get the requests and no show on screen.

[mobileadssdk-a...@google.com]

Hi Paul,

This is not how Mediation Waterfall works. The server will initially try and randomly pick an ad network based on the priority of the eCPM value and then make an ad request. If that network fails to fetch an ad, it will waterfall onto the next ad network until it is able to fetch one or will throw error code 3 when no ads are returned. This does not mean that all of the added mediation networks will be pinged for an ad. You can read more about this here.

Let us know if you need anything else.

Regards,

Deepika Uragayala

Mobile Ads SDK Team

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Also find us on our blog and Google+ page:
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    https://plus.google.com/115658573333388777174/
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[Paul Yip]

Hi Deepika,

Thank you for the explanation.  I still have some queries.  If you the requests is sent from your server to third party AD network and not user's phone.  How could the third party AD network know the IP address of the use's phone?  If the network performance from AD network to the user's phone is poor, the user may not receive any AD (e.g. a 30 second video), but on your server would stop to perform the waterfall.  As a result, the user's phone will not get any AD.  Do you think it's possible?

Thank you again for your help.

Paul

[mobileadssdk-a...@google.com]

Hi Paul,

There will always be timeout when any third party mediation ad network is requested for an ad. The AdMob ad server will move on to the next ad network from the waterfall to load an ad from that network. As to the IP address itself, all of this data will be passed to the mediation ad network directly via the SDK/Server and whatever extras you might be passing along with it. For example: AdColony allows the user to pass the following additional values when the AdRequest is being made.

Regards,

Deepika Uragayala

Mobile Ads SDK Team

=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~

Also find us on our blog and Google+ page:
    http://googleadsdeveloper.blogspot.com
    https://plus.google.com/115658573333388777174/
=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~=~

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