The same page reached through http, https, www, a trailing slash, and a ?utm_source= tag is five URLs to a search engine — and five places your ranking signals get split. The new Canonical Tag Generator builds the one line of markup that ties them all back together.
What it does
- Valid markup, every time: copy a correct HTML5 or self-closing XHTML
<link rel="canonical">tag. - Smart normalisation: force HTTPS, lowercase the domain, optionally drop
www. - Cleans tracking URLs: strips UTM and other query parameters that fragment ranking signals.
- Trailing-slash control: keep, add, or remove — so
/pageand/page/stop competing. - HTTP header output: for PDFs and other non-HTML files that have no
<head>.
Why it matters
A canonical tag consolidates duplicate URLs onto one authoritative version, much like a 301 redirect but without removing the duplicates. Get the syntax wrong, though — a relative URL, a canonical pointing at a redirect, or everything aimed at the homepage — and you can quietly push the wrong page into search results. This tool gives you the exact, normalised, absolute URL search engines prefer.
Try it
Open the Canonical Tag Generator and paste a URL. To understand the strategy behind the tag — self-referencing canonicals, when to use noindex instead, and the mistakes that hurt — read Canonical Tags Explained: Fixing Duplicate Content.
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Frequently Asked Questions
Does it output the HTTP header version too?
Is my URL sent anywhere?
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