Canonical Tag Checker
Generate canonical tags to prevent duplicate content issues.
What is a canonical tag?
A canonical tag tells search engines which version of a page is the master copy. It prevents duplicate content issues when you have similar or identical pages.
✅ Best for: SEO specialists, website owners, e-commerce sites with similar products.
When to use canonical tags
- 🛍️ Product pages with multiple URLs (color, size variations)
- 📄 Pagination (page=1, page=2, page=3)
- 🔍 Filtered category pages
- 📱 Mobile-specific versions
- 🌐 HTTP vs HTTPS versions
- www vs non-www versions
Example
If you have multiple URLs for the same product:
https://shop.com/product?color=redhttps://shop.com/product?color=bluehttps://shop.com/product?color=green
Add canonical tag to all pointing to:
<link rel="canonical" href="https://shop.com/product" />