What is Duplicate Content?Substantially similar content available at multiple URLs, diluting relevance and signals.Why is Duplicate Content important?Key reasons include: Consolidates ranking signals when resolved; Improves crawl efficiency; Reduces cannibalization and confusion.How do I implement Duplicate Content?Start with: Use canonicals and redirects consistently; Standardize URL formats and parameters; Manage syndication with rel=canonical or noindex.What are common mistakes with duplicate content?Common pitfalls include shallow execution, ignoring user intent, over-optimizing for narrow metrics, and failing to maintain consistency at scale.How does duplicate content affect SEO performance?Done correctly, it can improve relevance signals, sync efficiency, and internal authority flow, contributing to better visibility and engagement.