Google Ranking Systems Guide

Google uses various ranking systems to sort search results. Here is a brief summary:

• Core Ranking Systems: These systems evaluate the relevance and usefulness of pages for users, considering many factors and signals to find the most suitable results.
• BERT: An AI-based system that helps understand the context and intent of queries.
• Crisis Information Systems: Developed to provide useful information during crises, such as natural disasters or personal crises.
• PageRank and Link Analysis: These systems track links between pages to determine their significance and relevance.
• MUM (Multitask Unified Model): An AI system capable of recognizing complex queries and providing answers.
• RankBrain: An AI system that matches words with concepts, helping find relevant results even without exact word matches.
• Demotion Systems: Google demotes pages that violate rules, such as containing spam or copyright-infringing content.

These systems work together to provide users with the most relevant and useful search results. For more details, you can refer to the Google Ranking Systems Guide.