E-commerce sites generate thousands of duplicate URLs through filters, sorting, pagination, and session parameters. A well-configured robots.txt focuses Google on your product and category pages — the ones that actually drive sales.
A typical e-commerce store with 1000 products can have 50,000+ URLs when you count filter combinations, sort orders, and pagination. Blocking duplicates improves crawl efficiency dramatically.
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How to Generate Robots.txt for E-commerce Stores
- Block transactional pages: /cart, /checkout, /account, /wishlist
- Block filter/facet URLs: ?color=*, ?size=*, ?sort=*, ?page=*
- Block internal search: /search, /search?q=*
- Block session/tracking URLs: ?session=*, ?ref=*, ?utm_*
- Allow all product and category pages
- Add XML sitemap URL
Pro Tips
- Use wildcard (*) patterns: Disallow: /*?sort= blocks all sort variations
- Never block product pages or category pages — these drive organic traffic
- Block /compare, /recently-viewed, /wishlist — these are user-specific
- If using faceted navigation, block parameter combinations but allow clean URLs
Frequently Asked Questions
Should I block filter pages in robots.txt?
Yes. Filter combinations (color+size+price) create thousands of near-duplicate pages. Block them with wildcard rules like Disallow: /*?color= and use canonical tags as backup.
What about pagination — should I block ?page=2?
Opinions vary. If your paginated pages have unique products, allow them. If they are just duplicates of filtered views, block them. Use rel=next/prev as alternative.
Is robots.txt enough for e-commerce SEO?
No, it is one piece. Also use canonical tags, noindex meta on filter pages, and XML sitemaps with only clean product/category URLs.
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