Online shops have thousands of similar pages, which brings special SEO problems.
Category pages
Category pages often target the biggest keywords ("ro water purifiers"). Give them a short, useful introduction, clear headings and links to buying guides.
Product pages
- Unique descriptions, not the manufacturer's text copied by every shop.
- Product structured data with price and availability. Check it with the schema markup checker.
- Good images with alt text.
- Reviews and questions from real customers.
Internal links in shops
- Link from category pages to the most important products.
- Use breadcrumbs (Home › Purifiers › RO 7-stage) and BreadcrumbList structured data.
- Link from buying guides to the products they recommend.
- Show related products to help both shoppers and crawlers.
Site search and filters
Your site's internal search result pages should usually be kept out of the index with noindex, as they create endless thin pages. Filter combinations that match real searches ("ro purifier under 10000") can be worth a proper, indexable landing page with its own content.
Speed matters more in shops
Product pages often carry heavy images and many scripts for reviews, chat and tracking. Check them with the page speed checker and the HTTP requests checker; each extra second costs sales as well as rankings.
Technical traps
- Filters and sorting create endless URLs. Use canonical tags and keep filter pages out of the index unless they target real searches.
- Out-of-stock products: keep the page if it will return; redirect it to the closest product if it will not.
- Duplicate content across colour and size variants: one canonical page.
Run a site audit after each big catalogue change to catch new duplicates and broken links.
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