Canonical Tag Generator

Generate a canonical tag

The canonical tag is a link element with rel equals canonical that tells search engines which URL is the preferred, authoritative version of a page. This generator produces the correct tag from the URL you provide, ready to paste into the head of your page. It is the standard way to resolve duplicate content, where the same or very similar content is reachable at multiple URLs, by pointing all variants at a single canonical address.

The canonical URL must be absolute, including the protocol and domain, so search engines interpret it unambiguously.

Preventing duplicate content

Duplicate content arises from URL parameters, session IDs, print versions, HTTP and HTTPS variants, and trailing-slash differences, among others. Without guidance, search engines may split ranking signals across the duplicates or index the wrong one. A canonical tag consolidates those signals onto your chosen URL, protecting your rankings and keeping the right page in the index.

Each page should have exactly one canonical tag, usually pointing to itself unless it is a known duplicate. Make sure the canonical URL is reachable and returns a success status. All generation happens locally in your browser.

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• Meta Tag Analyzer — Check a page's meta tags for the problems that actually affect indexing and click-through.
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• Robots.txt Validator — Validate robots.txt syntax and check whether a specific URL is allowed or blocked for a given crawler.
• Sitemap Generator (Lite) — Generate a valid XML sitemap with lastmod dates and correct structure, and learn which URLs belong in it and which do not.