Myth: a canonical tag fixes duplicate content

Myth: a canonical tag fixes duplicate content

'Q: My product variants have the same description. I added canonicals — duplicate content handled, yes?'

Short answer: A canonical is a hint, not a command — Google can and does ignore it.

The longer version: rel=canonical is one of about 20 signals Google uses to pick a representative URL. If your internal links, sitemap, and hreflang all point one way but the canonical points another, Google trusts the stronger signals. Common failure: you canonical variant URLs to the parent, but every internal link and your sitemap still lists the variants. Google sees the conflict and picks its own canonical — sometimes the wrong one.

Make your signals agree: canonical, internal links, and sitemap should all name the same URL. A canonical with contradicting signals is a coin flip.

Rule of thumb: canonicals are votes, not laws. Stack your votes.

Follow-up worth asking: yes, a page can canonical to itself, and self-referencing canonicals are recommended.

Got an e-com SEO question? Drop it.