Alternative to StartApp

I am using StartApp as a backfill network. But tracking impressions with Google Analytics, actual ecpm is ridiculous: about 0,1$. What ad network can act as a good backfill to AdMob and FAN? What ecpm can I expect from Amazon or UnityAds?

Backfill for Admob ???
That makes no sense because admob has fillrate of about 99% - EVERY OTHER NETWORK has lower fillrate !

nah, u can set up ecpm floor in Admob to reduce fill rate. I do it

If you track real impressions, you absolutely can test that not even close to that number. There are also bad connections with the server (so also not tracked missed impressions). Real values are that you obtain around 90% of the impressions you ask for from the AdMob network.

How to set ecpm floor?

I’m not using admob meditation any suggestion

it is not mediation - you can specify the minimum ECPM for admob. for example, i set a minimum espm 0.35$ and have fillrate 25%

Thanks mate for confirming