Welcome to WebmasterWorld Guest from 18.104.22.168
Forum Moderators: martinibuster
My gut feeling is also that bigger font size screams ad and actually discourages clicking. But...
I have found that using fonts, font styles, and colors that match your site's content is the best way to achieve higher CTRs. With close attention to that, and placement, I have been able to achieve CTRs of between 9-10% routinely.
For me personally, that doesn't generate a compliant.