Page Not Found Errors in DFP Premium
We started seeing a larger then normal number of "page not found" visits. We decided to test to see if this was ad related by first turning off our remnant partners. When we did that, we saw the number of "page not found's" drop significantly. We were able to work with our partners to determine that there were creatives being served that were calling to a file on our site that wasn't there. Basically, meaning that expandable ad units were running looking for iframe busters that we longer have on our site.
We recently switched ad servers to DFP Premium. Since we did that, we were able to remove the various iframe busters that have been sent to us by different TPAS, so we're thinking this is all related.
Has anyone else seen this issue or something similar? How was it resolved?