I haven't fully validated this idea yet, but I ran a Google ad campaign for $5 a day for a mailing list signup page that I was planning a business around. Click through rates were around 2.5%, which seems to be the baseline, i.e. a 2.5% click through rate basically means no engagement. One thing that was interesting, however, is that certain keywords had click through rates around 7%. I wanted to try re-targeting the campaign to just those keywords but I lost motivation.
Was this a long time ago, or for a totally empty niche? I ask, because I'm lucky if I can buy a single click through for $5, and it's been like that for several years now.
This was a few months ago. I don't think it was totally niche. It was about $1 per click through and I run the campaign for 2 months, which was an accident. I meant to pause a lot sooner.
