<b>Lazy loading: don't auction what nobody sees</b>

<b>Lazy loading: don't auction what nobody sees</b>

Lazy loading means an ad's auction only fires when the visitor scrolls near that slot — not all at once when the page opens.

Why it matters: ads far down the page often never get seen. Auctioning them on load wastes bids and slows the top of your page. Buyers also pay more for ads that are actually viewed.

Tiny example: an ad in your footer. Without lazy loading, it auctions instantly and usually goes unseen. With it, the auction waits until the reader scrolls down — and only then.

One thing to try: ask if lazy loading is on for your below-the-fold slots, and what scroll distance triggers it.

<b>In plain English:</b> lazy loading delays an ad's auction until the visitor is about to see it.