Do folks know about good sources of CTRs for various sites? It seems like much of that information is gated. If 0.04% is bad, is 0.4% bad? Surely 4% is good. A

Do folks know about good sources of CTRs for various sites? It seems like much of that information is gated. If 0.04% is bad, is 0.4% bad? Surely 4% is good. And how are these rates going to change with metrics better than unique page views?