Pagination divides a long ordered set into multiple crawlable URLs, each with a clear place in the sequence and a useful user navigation path.
Meaning and scope
Pagination divides an ordered collection—such as a category, archive or result list—into multiple URLs. Each page can carry a different segment of the set, while users need a predictable route through the sequence. It is different from filtering: pagination changes position in a set, while filters change the set itself.
How to inspect it
Check a sequence from the first page through a later page. Verify that each page returns a real response, has a self-referencing canonical when it is a distinct page, exposes standard crawlable links to adjacent or available pages, and does not silently repeat page one. Inspect what happens when JavaScript loads more items: the additional items need discoverable URLs if they matter for crawling.
- Define the ordered inventory and choose stable page parameters or paths.
- Ensure every page has distinct visible items, a clear page state and a self-canonical URL unless another documented policy applies.
- Link pages with ordinary anchors and provide an accessible route to deeper items.
- Avoid canonicalising every page to page one when later pages contain distinct products or articles.
- Test empty, out-of-range and filtered combinations so they do not create misleading duplicate sequences.
Practical decisions
The key decision is whether later items deserve their own crawlable URLs. A view that only appends items after a script action may work for users but hide inventory from crawlers. For catalogues, I decide the canonical rule for filters and pagination before launch, then test the rendered tags against that rule instead of assuming every parameter URL should rank.
Limits and mistakes
There is no universal page-size or canonical rule. Do not use rel=next and rel=prev as if Google still used them for indexing; Google documents that it does not. Pagination cannot make thin inventory useful, and a load-more interface is not automatically an SEO defect if important items remain discoverable.