Thin or duplicated URLs form a large share of the indexable site (Panda legacy)

Google has said low-quality content on some parts of a site can affect the whole site's rankings, and its ranking systems guide confirms site-wide signals are used. Panda itself is retired into core ranking, so this check measures the sitewide quality proportion Panda was built around, not a live Panda signal.

Merge overlapping pages into one stronger page with a 301 redirect, improve shallow pages that serve real demand, and remove or noindex pages with no user value. Stop templated page generation that creates near-empty URLs.

1. Crawl the site and export all indexable URLs with word count, content-to-boilerplate ratio and near-duplicate similarity scores.
2. Flag URLs below the site's own thin-content threshold or above 90% similarity to another URL, and group them by directory or template.
3. Join Search Console performance data for the last 12 months and mark flagged URLs with zero or negligible impressions.
4. Calculate the share of indexable URLs that are flagged; report any directory or template where flagged URLs are the majority.

Written for the Panda page (evidence: Confirmed).

Indirect. Estimate only: sites where low-value URLs are the majority can see sitewide ranking suppression; cleaning them up tends to show effects over months rather than days.

Google's 2011 Panda launch post and May 2011 guidance, and the current Google Search ranking systems guide, which lists Panda as merged into core ranking and confirms site-wide signals.