Duplicate page content refers to substantial blocks of content within or across domains that are either completely identical to or very similar to other content. This can occur when the same content appears in multiple URLs within a single website or across different websites. Duplicate content can confuse search engines, making it difficult for them to determine which version is more relevant to a given search query, potentially negatively impacting the site's search engine ranking.
For example, if a website has the same product description on multiple pages for different products, or if an article is republished on another website without proper canonicalization, search engines may not know which page to prioritize. This can lead to dilution of page authority and lower search engine rankings.
Managing duplicate content involves using canonical tags, setting up 301 redirects, and ensuring that each piece of content is unique and valuable to users. By addressing duplicate content issues, websites can improve their SEO performance and provide a better user experience.