How to fix it
Pick one form, redirect the others to it with a 301, and set the canonical tag to the chosen form.
When it is not a problem
A variant that canonicalizes to the other is already handled and is not reported. The finding is for the pair where both spellings claim to be the original.
How Rankelle handles it
- SeverityWarning. It costs traffic or clarity without stopping anything, which is where most real work lives.
- DetectionDetected by comparing pages against each other after the crawl finishes, because no single page can show it on its own.
- GroupingEvery page with this finding under the same URL pattern becomes one cause, with a confidence taken from how much of the pattern is affected. 400 of 400 is a template; 6 of 14 is phrased as a question. Causes are ranked by the impressions behind their pages.
- LandingThe affected URLs stay under cheap watch. When this finding is gone from all of them, the fix is marked landed without anyone reporting the deploy.
- VerdictAt landing, comparable untouched URLs are frozen as a control set. Twenty-eight days later the two are compared, and the fix can come back as having done nothing — all four verdicts reach the report.
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