I recently made some changes in my Admob setup via its “Allow and Block Ads” feature. It has two measures available for about 50+ categories that Admob uses to categorize its ads. One is % of Impressions, Second is % of Income. My assumption was: “If I remove categories that have %Income < %Impressions as long as I do not see impact on Fill Rate I should earn more.”
That was a wrong assumption, after 72 hours I see a noticeable drop in RPM and I am moving back to serving all ads (apart for some minor sensitive categories).
Anyone tried this? Any results you want to share - similar or contrary to mine?
I tried the same idea as you, block categories with %income<%impressions. I tried for a few weeks if I remember correctly. Didn’t see much change, maybe slight drop in overall earnings. No real drop in fill rate.