WP Redis
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About
Back your WP Object Cache with Redis, a high-performance in-memory storage backend.
What It Does
WP Redis drops a small object-cache.php file into your wp-content directory that redirects WordPress's built-in object cache (transients, query results, user meta, etc.) to a Redis server. The result is dramatically faster reads for repeated database lookups, which matters most under sustained concurrent traffic. It assumes you already have, or can provision, a Redis instance on your server or a managed host that offers one.
Who It's For
This is a fit for technical site owners or sysadmins running self-managed or VPS-style WordPress hosting who have Redis available and want to offload the object cache from MySQL. Ecommerce, membership, and high-traffic content sites with heavy authenticated user traffic tend to benefit most, since the default WP_Object_Cache is not persistent between requests.
Who Should Skip It
If you are on shared hosting, do not control the server, or do not already understand Redis basics, skip this plugin and use a managed page-cache solution instead. Casual bloggers and small business sites without measurable database pressure will see no practical benefit and risk site outages from a misconfigured cache.
The Bottom Line
WP Redis is a lean, recently maintained, and technically sound object-cache drop-in for WordPress, scoring 77.71 out of 100 with strong maintenance and compatibility signals. The low install count and zero public support threads mean you are largely on your own if something breaks, so it is best suited to administrators comfortable debugging Redis directly. For most users, the more widely deployed Redis Object Cache is the safer default choice.
Related Plugins
Pick this instead if you want the same Redis-backed object cache with 400,000 installs, a larger user community, and a more active support track record.
Pick this instead if your bottleneck is full-page delivery and you would rather cache at the CDN edge than install Redis on the server.
Pick this instead if you need an all-in-one suite covering database cleanup, image compression, and page caching without server-level Redis.
Pick this instead if you want a beginner-friendly disk-based page cache that requires no Redis and works on shared hosting.
Pick this instead if you want a free, Automattic-maintained page cache for high-traffic static content on hosts where Redis is not available.