Technical Definition
Core updates are broad changes to Google's ranking algorithms. Announced officially, rolled out over weeks. Affect rankings across topics and geographies. Focus on content quality and relevance. No specific fix; improvements require overall quality enhancement. Google advises focusing on E-E-A-T and helpful content. Major cores happen several times per year.
Simple Explanation (ELI13)
A core update is a major change Google makes to how they rank websites. They happen several times a year and can significantly shuffle rankings across all types of sites. If you lose traffic after a core update, it usually means Google thinks other sites are now more helpful than yours for those searches.
Related Terms
Google Algorithm, E-E-A-T, Helpful Content, Rankings
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