Canonical Tag Generator
A canonical tag generator writes the rel="canonical" tag that points to the preferred version of a page. Paste one URL or a list, choose how to tidy them, and this free tool returns a link tag and an HTTP Link header for each URL, ready to copy into your pages or server settings.
HTML Link Tags (<head>)
HTTP Link Headers
Skipped / Invalid URLs
| Line | Input | Reason |
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What is a canonical tag generator and when should you use it?
The same content can often be reached through several URLs, for example with and without tracking parameters. A canonical tag tells search engines which URL you prefer. It belongs in the head of the page, or in an HTTP header for files such as PDFs. Use the Hreflang Tag Generator for language versions, and list your preferred URLs with the XML Sitemap Generator.
How do you use it?
- Paste your URLs.
- Choose how to tidy them.
- Press Generate.
- Copy the link tag into the head of each page, or use the header form on your server.
Working on a comprehensive technical audit? Browse all free SEO tools to discover the next step in your workflow, or contact our technical support team if you require a specialized custom utility.
Result interpretation & practical applications
When evaluating the output of the canonical tag generator, review the parsed metrics against your specific site architecture. Outputs are formatted for direct implementation into your HTML source, web server configuration, or Google Search Console audit files.
Always inspect generated values for contextual nuance. Automated tools highlight structural patterns, but manual verification confirms that technical directives align with your overarching SEO strategy.
Technical rules and limitations
- Google's documentation lists the rel="canonical" link element as one of the ways to indicate your preferred URL.
- Use one canonical tag per page, with a full URL.
- Put it in the head of the HTML, or send it as an HTTP Link header.
See Google's guide on how to specify a canonical URL.
Common mistakes and troubleshooting
- Pointing every page to the home page.
- Using relative URLs.
- Adding two different canonical tags to one page.
- Removing a parameter that changes the page content.
No tool can promise how a search engine will crawl, index, or rank your pages. This tool generates and validates code against documented technical specifications; you determine where to deploy it, and you should always test changes on staging environments first. Google publishes extensive guidelines in Search Central on evaluating third-party SEO tools and advice. Learn more about our technical testing standards on our about us page, or explore full site audits on our pricing page.
Related free tools & workflows
Browse all Advanced On-Page SEO Tools →Technical SEO Audit Workflows
Indexability & Crawling
Redirects & HTTP Headers
Authoritative Technical Documentation & Standards
This tool executes logic aligned with official technical documentation and search engine webmaster standards:
- Google Search Central canonicalization guide
Google Search Central: Consolidate Duplicate URLs with Canonical Tags
Primary engineering source and technical documentation.
- IETF RFC 6596 Canonical Link standard
IETF RFC 6596: The Canonical Link Relation
Primary engineering source and technical documentation.
Canonical Tag Generator questions
Is a canonical tag the same as a redirect? ↓
No. A redirect sends visitors to another URL; a canonical tag only states your preferred URL.
Should every page point to itself? ↓
A page whose own URL is the preferred one can point to itself.
Which parameters can I remove? ↓
Only ones that do not change the content. The tool cannot know this for your site.
Is this tool free? ↓
Yes. It is completely free to use and requires no registration or subscription.
Does this tool visit my website or store my files? ↓
No. It executes entirely in your local browser runtime. Your inputs and results are never stored or logged on our servers.
Ready for the next step in your audit?
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