How should pagination and infinite scroll be implemented so deeper content remains crawlable and discoverable?

Treat infinite scroll as a user-interface enhancement layered on top of crawlable paginated states.

Every chunk of results should have a stable URL that can be requested directly without requiring a user to scroll or click. Those URLs should return meaningful HTML, appropriate status codes, and consistent canonical behavior. The application can progressively load subsequent pages for users, but the underlying paginated URLs should remain accessible.

Ensure page 1 does not canonicalize every deeper page back to itself when deeper pages contain unique items that need discovery. Likewise, do not noindex deeper pages automatically if they are the only crawl path to products, articles, or listings.

Use standard anchor links to expose next/previous or numbered pagination in HTML. JavaScript event handlers without real href destinations are weaker discovery paths.

Control duplication by keeping sort/filter states separate from core pagination. A URL such as category?page=4 should not explode into dozens of indexable permutations for every sort and filter unless those variants are intentionally promoted.

For large collections, inspect crawl depth. Important item pages should not require hundreds of pagination clicks to discover. Add category hierarchies, subcategories, featured internal links, XML sitemaps, and other direct paths where appropriate.

Test with JavaScript disabled and with raw HTML inspection. If deeper items disappear entirely without browser interaction, search discovery is too dependent on the front end.

The success criterion is simple: users can enjoy continuous scrolling while crawlers still have deterministic, link-based access to every important canonical item.