Canonical URL Checker
Check a page canonical URL, title, meta description, robots directives, og:url, final URL, and common indexability signals.
Free Canonical URL Checker
Canonical URLs help search engines understand the preferred version of a page. This checker fetches a URL and reports the canonical tag, final URL, robots meta value, title, description, and Open Graph URL.
Why canonical tags matter
Duplicate pages can split ranking signals and make reporting messy. Canonical tags help consolidate variants such as tracking URLs, trailing slash differences, print pages, and filtered pages.
Analytics and canonical URLs
Clean canonical rules make analytics easier to interpret because you can compare landing page performance without accidental duplicates from URL variants.
Frequently Asked Questions
What is a canonical URL?
A canonical URL is the preferred URL for a page when similar or duplicate versions exist. It is usually declared with a rel="canonical" link tag.
Should canonical URLs be absolute?
Absolute canonical URLs are recommended because they are clearer for crawlers and external tools.
Is a canonical tag required on every page?
It is not strictly required, but self-referencing canonical tags are a common best practice for indexable pages.
Can canonical tags affect analytics reports?
Indirectly, yes. Canonical discipline often matches URL discipline. Cleaner URLs reduce duplicate landing pages in reports.
What does noindex mean?
A noindex robots directive tells search engines not to index the page, even if they can crawl it.
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