Term
Faceted Navigation
Faceted navigation refers to filter and sort URLs in shops and listings (color, size, price). It quickly generates millions of crawl URLs — a crawl-budget killer without robots.txt, noindex, or parameter handling.
Faceted Navigation — explained in more detail
Faceted navigation combines several filter dimensions (brand × color × size × price × sort) into URL variants. With five filters of four values each, a single category can produce thousands of URLs — multiplied across all categories, that turns into millions. Convenient for the user, but a nightmare for crawlers: they fetch near-duplicate variants and find the truly relevant pages less reliably.
Clean handling combines canonical tags pointing to the main category, targeted noindex,follow for filter combinations, robots.txt rules for pure sort URLs, and nofollow on lower-value filter links.
Example / In practice
A fashion shop with 50 categories and eight filters per category can produce tens of millions of URLs. A workable strategy: only brand filters are indexable (own search intent), all other filter combinations canonicalize to the parent category and are noindex. Crawl budget stays available for product and category pages.
Distinction from similar terms
Pagination is a sequential URL series (page 2, 3, …) — not combinatorial, so much smaller volume. Internal search pages come from user input and should generally not be indexed at all.
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301 Redirect
A 301 redirect is an HTTP status code permanently redirecting one URL to another — the standard for URL changes, domain moves and site migrations.
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