A sticky ad is a banner that stays fixed on screen while the reader scrolls, often a 320x50 strip at the bottom of a mobile page. It is hard to miss because it never moves.
How it's sold
Publishers such as Crypto Briefing, Domiporta.pl and The Motley Fool run it, and you book through their sales team or programmatic deals. Only a few publishers list it as a separate option.
What it costs
Most publishers quote this on request, usually as a monthly fee or per 1,000 impressions.
What you supply
You supply a small banner in the stated size, such as 320x50 or 728x90, and a link.
Best for
It suits mobile campaigns that want steady visibility and clicks.
Before you buy
Check the publisher's close button and how often readers tap it by accident, since poor sticky ads can hurt both clicks and trust.