Google Panda
The landmark quality system that targeted content farms, thin pages, rewritten filler, and pages where advertising outweighed the article, now folded into the core algorithm.
Analogy Mental model
A food inspector cracking down on watered-down produce and soup made from flavouring rather than stock. The operations that padded their portions with nothing lost their licences overnight.
In practice What you actually do
Panda's lasting contribution is that quality is judged at site level. Twenty percent good content cannot save a domain whose remaining eighty percent is empty tag pages, fifty-word rewrites, or scraped filler, so audit and prune deliberately.
Where people get burned Pitfalls
Pruning means deciding per page: delete with a gone status, merge and redirect, or keep but exclude from the index. Leaving thousands of worthless URLs in place because deletion feels destructive is the mistake that keeps the whole domain suppressed.
This entry was written in English from the Chinese original, not machine-translated. Read the Chinese version →