How faceted navigation works and why it is dangerous
LightSEO · Technical
How faceted navigation works and why it is dangerous
Catalog filters are a convenience for shoppers and a potential disaster for indexing. Every combination of parameters can create a new URL, and there can be thousands of such URLs.
1,000+
pages from filter combinations
Mechanics
What happens technically
Every selected filter changes the URL. Color, size, brand, price – and you end up with a URL carrying a set of parameters.
The number of combinations grows exponentially. Five filters with five values each produce hundreds of variants, most of which nobody searches for.
The search bot follows every link. And it spends its resources on pages with no value instead of important categories and product pages.
Consequences
What the risks are
🗑
Junk pages in the index
Hundreds of nearly identical pages with minimal differences.
⏳
Wasted crawl budget
The bot never gets to new products because it wanders through the filters.
📉
Duplicate content
Pages with different URLs and almost the same set of products compete with each other.
Solution
How to set it up correctly
Close everything by default. The basic rule: filter combinations stay out of the index until you deliberately open a specific one.
Open what people search for. Turn filters with real demand – brand, type, purpose – into full-fledged pages with text and meta tags.
Never open sorting and price. "From cheapest to most expensive" is a way of viewing the catalog, and nobody types it as a search query.
Is your index clogged with filter pages?
We'll put things in order: close the junk, open what brings traffic and check the result in Search Console.
