What Is Redis? A Friendly Guide to the In-Memory Speed Layer

• 28 June 2026
• by: Renata Cardoso
• in: MySQL/MariaDB
• Tags: redis, redis cache, what is redis
• note: no comments

What is Redis? Learn how this in-memory data store works, why it’s so fast, Redis vs Memcached, top use cases, and how Redis caching speeds up WordPress.

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