Duplicate pages split signals and waste crawl budget, and on large catalogues they are generated automatically rather than written deliberately.
Where duplicates come from
- Parameters: sorting, filtering, tracking, session identifiers.
- The same product reachable through several category paths.
- Print, AMP or mobile variants without proper declaration.
- www and protocol variants left unresolved.
Consequences
Yandex picks one URL and drops the rest. If it picks differently from you, the wrong page ranks and internal links point at the loser.
Alien Road
How we apply this
Duplication is the most common technical problem we inherit on Yandex projects and the one clients least expect, because the pages look distinct in a browser. The console’s duplicate report settles the argument in minutes.
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