The formula behind it
Monthly price = views one advertiser gets ÷ 1,000 × CPM.
- Views one advertiser gets: your pageviews × the share of them where the slot is actually on screen, divided by the number of advertisers sharing the slot.
- CPM (cost per thousand views): what one thousand of YOUR readers are worth to an advertiser. A kitchen manager comparing software is worth more than a casual reader — which is why a small, precise site can charge more per view than a big general one.
Three mistakes that stop a slot from selling
- Quoting sessions instead of humans. Bots inflate raw analytics. Buyers find out on the first invoice.
- Putting the slot in the footer. Half your readers never scroll there: fewer views, lower price.
- Selling exclusivity by default. A slot shared by five advertisers at a lower price fills faster and earns more than one expensive exclusive that stays empty.
Ready to put a price on it? Create your slot in one minute, or read the full guide to selling ad space directly.