Canonical elements
Detect missing, multiple, relative, self-referencing, and cross-URL canonical signals.
CAPABILITIES
Built for focused, practical work.
HTTP & redirects
Inspect status, final URL, redirect chain, and canonical target behavior.
Normalization
Review fragments, query strings, protocol differences, and target-domain differences.
Diagnostic output
Use JSON output for audits and downstream scripts.
WORKFLOW
From input to useful evidence.
URL → HTTP → REDIRECTS → CANONICAL ELEMENT → NORMALIZATION → TARGET CHECK → FINDINGS
SETUP GUIDE
Clear steps, no guesswork.
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1. Download
Download the repository ZIP or clone the source.
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2. Install
Use Python 3.10+ and install the requirements.
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3. Check URLs
Run one or multiple authorized URLs.
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4. Evaluate context
A canonical is an implementation signal; the tool does not determine the canonical selected by a search engine.
QUICK START
Run it in minutes.
python -m pip install -r requirements.txtpython canonical_url_checker.py https://example.com/python canonical_url_checker.py https://example.com/page --jsonpython canonical_url_checker.py https://example.com/page --no-target-fetchRESOURCES
Source, documentation & downloads.
RELEASE
Stable v0.1.0 snapshot.
SCOPE
Know what the tool can—and cannot—tell you.
This project reports implementation evidence within its defined scope.
It does not guarantee rankings, indexing, traffic, search visibility, or search-engine decisions. Evaluate findings against the actual website, evidence, current authoritative documentation, and project context.
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