Ahrefs finds Google serves abnormal or stale pages to SEO data tools at scale
TLDR
Ahrefs reports that Google serves abnormal or outdated pages to SEO data tools at rates between 5% and 20%, depending on the provider.
Optimixed Overview
Optimixed's original report on this story.
Ahrefs identified a pattern in which Google serves abnormal or stale pages to SEO data tools at variable rates—between 5% and 20% depending on the data provider. The finding raises questions about the accuracy of ranking data from September and October, though Ahrefs says it now filters out such pages and refreshes its own data regularly.