Canonical URL Checker
Inspect canonical URL tags and identify common canonicalization issues.
Key Capabilities
5 capabilities| # | Capability |
|---|---|
| 01 | Inspects both HTML <link rel='canonical'> and HTTP Link headers |
| 02 | Detects self-referential vs cross-domain canonical targets |
| 03 | Validates target HTTP status (200 OK vs 404/redirect) |
| 04 | Highlights missing or duplicate canonical warnings |
| 05 | Live SSRF-protected webpage analysis |
How to Use the Canonical URL Checker
Enter Page URL
Provide the public URL of the webpage you wish to analyze.
Analyze Tags
The server inspects HTML head tags and HTTP response headers.
Inspect Findings
Review declared canonical URLs, target response codes, and canonicalization warnings.
Frequently Asked Questions
Why are canonical URL tags essential for SEO?
Canonical tags tell search engines which URL represents the authoritative 'master' version of a page, consolidating link equity and preventing duplicate content penalties.
What happens if a canonical points to a redirect or 404?
Search engines often ignore canonical tags that point to broken pages or redirect chains, leading them to choose their own canonical.
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