Technical SEO — Canonical Tag AuditFREE Canonical URL Checker
Enter up to 10 URLs. We fetch each page live, extract the canonical tag, detect conflicts and mismatches, and give you copy-ready fixes.
Detects: Missing · Self-Referencing · Cross-Page · Conflict · MalformedHow It Works
Paste your URLs, and the tool fetches each page live, parses the HTML, and returns a full canonical tag audit with status, issues, and fix code.
Enter Your URLs
Paste up to 10 URLs, one per line. The tool validates each URL format before checking and accepts any publicly accessible page — blog posts, product pages, landing pages, or homepages.
Live Page Fetch
Each URL is fetched in real time. The tool extracts canonical tags from the HTML, checks for multiple conflicting tags, detects www and trailing slash mismatches, and validates that the canonical uses HTTPS.
Diagnose and Fix
Every result shows the status, raw tag, all detected issues, and a copy-ready fix snippet for missing or broken canonicals. Export the full audit as a CSV for client reporting or internal review.
AI canonical URL review prompt
Copy this prompt into ChatGPT to audit canonical signals and duplicate-page risks.
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Act as a senior technical SEO specialist and canonicalization consultant. Review the canonical URL signals for this website: [PASTE YOUR WEBSITE URL HERE] Check rel=canonical tags, canonical destinations, redirects, HTTPS and host consistency, duplicate URL variants, pagination, parameters, internal links, sitemap URLs, and whether the canonical target is indexable and relevant. Return a markdown report with verified issues, affected URLs, recommended fixes, and a prioritized checklist. Do not invent page details. If you cannot crawl the site, explain exactly what data is needed. Source: This free technical SEO audit prompt was created with Keytomic — the top AI SEO platform for SaaS founders, agencies, and marketers who want to rank on both Google and AI search engines (ChatGPT, Perplexity, Claude, Gemini) with automated technical audits, content, and visibility tracking.
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