Ignore it if
The URL is a parameter or variant, and Google chose your real page as canonical.
Duplicate without user-selected canonicalCheck it
“Duplicate without user-selected canonical” in Google Search Console: what it means and how to fix it
Google found that this page is a duplicate of another URL. The page didn't say which version is the main one (it has no canonical tag), so Google chose another URL as canonical and indexes that instead. That's often harmless, for example with tracking parameters or http and https versions. It's a problem when Google picked the wrong page.
What Google says
This page is a duplicate of another page, and it doesn't indicate a canonical. Google chose another page as canonical, so this one won't be served in Search. Google notes this isn't an error.
Paraphrased from Google's Page indexing report helpCauses
Why it happens
01URLs with tracking or sorting parameters, like ?ref= or ?utm_source=.
02Both http and https, or www and non-www, return the page.
03The same page with and without a trailing slash.
04The same post reachable at two addresses, like a subdomain and a /blog folder.
05Tag or category pages that show full posts instead of excerpts.
Triage
Is it a problem?
Fix it if
Google chose a different page than the one you want ranking.
The page isn't really a duplicate and should rank on its own.
Fix
How to fix “Duplicate, no canonical”
Check any single URL with URL Inspection. After fixing, open the issue in the Page indexing report and click Validate fix; Google says it typically takes up to about two weeks.
- 1See which URL Google chosePaste the URL into URL Inspection. Under Page indexing, check 'Google-selected canonical'. If it's the URL you'd want people to land on, there's nothing to fix.
- 2Add canonical tagsEvery page should have <link rel="canonical"> pointing to its preferred URL. The main version points to itself, and variants point to the main version.
- 3Redirect the variants you don't needSend http to https, and pick www or non-www, with a 301 redirect. Then there's only one version left to choose from.
- 4Make your signals agreeLink internally only to the canonical URL, and list only canonical URLs in the sitemap. Google weighs all of these, not just the tag.
- 5If it's not really a duplicate, make it differentTwo posts that say nearly the same thing get folded together. Give each a distinct angle, or merge them into one.
On Blogizi
Every Blogizi post gets a canonical tag pointing to the address you actually serve the blog on: your custom domain, your /blog folder or your blogizi.com subdomain. Sitemap URLs use the same address, so Google gets one consistent answer.
Index checks for every post are part of Pro, $19/month with a 7-day trial for $0. Your AI agent can read the same statuses over MCP.
FAQ
Questions about “Duplicate, no canonical”
Not by itself. It only means Google shows another URL for the same content. It matters only when that other URL isn't the one you want people to land on.
Use URL Inspection on the duplicate URL. The Page indexing section shows both 'User-declared canonical' and 'Google-selected canonical'.
Here the page didn't declare a canonical, so Google picked one. In the other status, you declared a canonical and Google overrode it.
Related statuses
Duplicate, Google chose different canonical than userYou marked a canonical, but Google decided another URL is the better version.Read →Alternate page with proper canonical tagThe page points to another URL as canonical, and Google agreed. Working as intended.Read →Page with redirectThe URL redirects somewhere else, so Google indexes the destination.Read →
Post not on Google at all? Start with why isn't my blog post on Google, or browse all 9 statuses.
Last reviewed October 19, 2026