What this tool checks
- Canonical count
- Canonical URL
- Missing or multiple warnings
SEO Audit Tools
Canonical Tag Checker
Detect canonical link tags and duplicate/missing canonicals.
Run the check
Enter a public target. Checks are a point-in-time sample; private and internal addresses are blocked.
Why it matters
Canonical tags help search engines choose the preferred URL.
Plain-English examples
- Check pages with query parameters
Recommended fixes
- Use one self-referencing canonical where appropriate
- Avoid conflicting canonicals
Understanding the result
Use findings as a starting point, confirm the intended configuration with your provider, and retest after a change. A successful check does not guarantee security, delivery, uptime or search rankings. Results depend on public DNS and what the server exposes at the time of the check.
Related tools
Run these checks next for a fuller picture.
Meta Tag Analyser
Review title, description, canonical, robots and viewport meta tags.
Run checkSEO Snapshot
Run focused checks for metadata, headings, crawl signals, schema, links and images.
Run checkRobots.txt Checker
Fetch and summarise a site robots.txt file.
Run checkSitemap Checker
Find sitemap.xml or sitemap_index.xml and count entries.
Run checkNeed help fixing the result?
