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For years, the "common wisdom" (as this not-especially-wise person understands it) has been that duplicated content harms SEO. For example, asking a question on Quora and then reposting it on SO, ...
#1: Initial revision
by
Monica Cellio
·
2025-04-17T23:28:37Z (2 days ago)
In 2025, how does duplicated content affect search behavior?
For years, the "common wisdom" (as this not-especially-wise person understands it) has been that duplicated content harms SEO. For example, asking a question on Quora and then reposting it on SO, or posting something on Reddit and Codidact, or posting a blog entry on Dreamwidth and also posting it on my personal domain, would harm the search-engine placement of the smaller or newer site, not just for that particular page but for all pages. It feels like search algorithms and/or indexing have changed a lot in the last couple of years. Many people have observed that Google search results have gotten much worse in this time, and there are more search providers than there used to be (Kagi, DDG, others). Have these changes affected how we need to think about duplicated content when it comes to search? In 2025, what are the effects of duplicated (or near-duplicated) content on the search results for the less-significant site?