Google updated its canonicalization troubleshooting documentation this month to spell out how long duplicate clustering can persist after a site fixes the underlying content. Per the updated guidance, pages that Google groups together as duplicates may remain clustered for up to two weeks even after the content has been changed to differentiate them. The documentation adds a caveat: when the content difference between pages is clear and significant, the split into separate, distinct URLs can happen faster than the two-week window.
For SEOs, the practical takeaway is patience paired with a hard checkpoint. Before assuming a canonicalization fix has failed, wait the full two weeks and confirm the content difference is unambiguous, not marginal, since ambiguous edits are the likeliest cause of a cluster failing to split. Search Engine Land’s Barry Schwartz reported the documentation update on July 10.
Search Engine Land (Barry Schwartz), published July 10, 2026.
