Infinite scroll is a loading pattern where more content keeps appearing as you scroll down, so you never click a “next page” button. The page fetches the next batch in the background and adds it to the bottom, on and on, as long as there is more to show.
Think of a coffee cup that quietly refills the moment it gets low. You never ask for more; it is just always there. Social feeds work this way, and so do many product grids. The trick is doing it without breaking the basics: you still want each item to live at a real address so it can be found later, which is why infinite scroll pairs well with lazy loading and a solid internal search engine for people who know exactly what they want.
The pattern shines for browsing and discovery, where people are happy to keep going and have no fixed destination. It works less well when someone needs to reach the footer or compare items side by side, which is why a busy webshop often keeps classic pagination on its main listings. A footer with your contact details or shipping policy is useless if it keeps running away as new products load in. Speed matters too. If every new batch piles onto the page forever, the browser holds thousands of elements in memory at once, scrolling gets sluggish, and your Core Web Vitals suffer. The fix is to recycle: keep only the rows near the viewport rendered and drop the rest until you scroll back. Done this way, a list of ten thousand items stays as smooth as a list of ten.
At TopDevs we add infinite scroll only where it fits the user’s goal, and we always keep a crawlable page structure underneath so nothing disappears from search.
