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What are indexers in Magento, and how do they impact performance?

What are indexers in Magento, and how do they impact performance?

Answer: Indexers in Magento are systems that optimize the way data is stored and retrieved in the database. They convert complex queries into simpler ones, updating data in “index tables” to improve performance. By re-indexing data, Magento ensures that changes (like product updates or price changes) are reflected quickly in the frontend without slowing down the site. Properly managing indexers enhances the site’s speed and responsiveness, especially for large catalogs. Regularly updating indexers is crucial for maintaining optimal performance.

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