Category or filter: when to use which
LightSEO · Catalog
Category or filter: when to use which
One of the key decisions when designing a catalog. A mistake either way costs traffic: extra categories dilute the catalog, and extra filters hide demand.
50+
searches per month = category
Criterion
The main rule for choosing
Stable demand – make it a category. If people search for "grain-free cat food" hundreds of times a month, it needs a separate page with its own text and meta tags.
No demand – keep it as a filter. A parameter that shoppers use to narrow the results, yet never search for in Google, needs no separate page.
The middle option – an open filter. Some platforms let you turn a filter combination into a full-fledged page with its own URL and text.
Examples
What it looks like in practice
✅
Category
"Running shoes" – a separate query with high demand and its own audience.
🎚
Filter
"Size 42" – needed for choosing, yet nobody searches for a separate page for it.
🔓
Open filter
"Nike sneakers" – the demand is there, a separate category would be awkward, and a brand page is worth opening.
Risks
What the wrong choice leads to
Too many categories. The catalog is bloated, each category holds three products, and shoppers cannot tell the sections apart.
Everything hidden in filters. You lose dozens of pages that could attract traffic for specific queries.
Uncontrolled filter combinations. If you open every combination for indexing, thousands of junk pages appear.
Not sure what should be a category and what should be a filter?
We will collect the search demand for your niche and show which queries need separate pages and what to leave as a parameter.
