Example: Header Bidding impressions dropped compared to the same day for the previous week.
Step 1: Check the average IPP (impressions per pageview) for any abnormal changes. If nothing stands out, the drop in impressions could be due to a drop in traffic volume overall.
Step 2: Check to see if the publisher has changed its traffic source. You may find some relevant information in Google Analytics.
Step 3: Determine if the publisher has deployed any changes on the site.
Step 4: Determine if the traffic profile has changed (e.g. geographics or device). You may find some relevant information in Google Analytics.
Step 5: Is Ad Exchange or any managed demand partner winning over Header Bidding? Run a report on DFP to determine the results.
Step 6: Check CPM rates for Managed Demand to ensure they are not inflated. Adjust them accordingly by calculating the true CPM [(UI revenue/DFP impressions)*1000].
Step 7: Has the publisher disabled header bidding? Check the status of M2HB (MonetizeMore Header Bidder) orders and line items on DFP. They have to display as ‘Ready’ or ‘Delivering’.
Step 8: Append the URL with ?googfc. Under Page Requests, you should see targeting attributes that contain ‘m2_xxxx’.
Step 9: Check the source code on multiple random pages and look for M2HB (MonetizeMore Header Bidder) script (Open the website > Right click > View Page Source).
Step 10: Search for ‘m2hb’ or ‘m2d’. You should see the on-page or off-page codes in the header.
Step 11: Audit Div IDs/Slot IDs. If any code is missing, then header bidding is disabled. Check with the publisher to confirm your findings.
Step 12: If everything looks good and the drop seems abnormal, contact adops engineering for further support.