SEO fix guide
Canonical URL Returns Non-200
The canonical URL does not resolve successfully. Confuses search engines.
Issue ID: INDEX-CANONICAL-DEAD-001
Severity: high
Impact: High
Effort: S
Use this article when
- You need deeper remediation guidance than the issue card can show.
- You want CMS-specific steps before handing the fix to a developer.
- You want a repeatable re-check path after shipping the change.
What this issue is
The canonical URL does not resolve successfully. Confuses search engines.
Why it matters
The canonical URL does not resolve successfully. Confuses search engines. This affects how clearly search engines understand the page and how persuasive it looks in search results.
How we detect it
- FreeSiteAudit flags this issue when the rule for INDEX-CANONICAL-DEAD-001 fails and the page evidence points to Head metadata.
- You can usually confirm this by checking the page source or the relevant page settings inside your CMS.
Evidence examples
Check the affected page source, rendered output, or relevant CMS setting to confirm the missing or incorrect element.
How to fix it
- 1Fix the canonical URL to point to a valid, accessible page
- 2Update or remove the canonical tag if the page was removed
- 3Ensure the canonical URL returns HTTP 200
How to re-check it
- Visit the canonical URL and confirm it loads correctly
Related tools
This issue is best verified with the full FreeSiteAudit crawl rather than a single-point mini tool.