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Redis Object Cache

By Till KrÃ¼ss

Performance & Optimization / Caching Solutions

Reviewed by Omar Dabbas

Trusted WordPress expert with 20+ years of experience evaluating plugins for the WP ecosystem.

Redis Object Cache Review - In-Depth Analysis

Redis Object Cache is a persistent object cache backend powered by Redis. It supports various Redis clients and offers advanced features for performance optimization.

Performance Overview

WPS Score

7.33/10

User Rating

4.5/5 (based on 179+ reviews)

Active Installations

500,000+

Update Frequency

Very Good It is calculated using the weighted average of same category plugins.

Security Score

1 / 10 (Very Low Risk) It is calculated using the weighted average of all versions.

What It Does

Redis Object Cache is a persistent object cache backend powered by Redis. It supports Predis, PhpRedis, Relay, replication, sentinels, clustering, and WP-CLI.

To adjust the connection parameters, prefix cache keys, or configure replication/clustering, see the configuration options.

Object Cache Pro is a business class Redis object cache backend. It is reliable, highly optimized, and fully customizable with a dedicated engineer when needed. It features rewritten performance, 100% WordPress API compliance, faster serialization and compression, easy debugging and logging, cache prefetching and analytics, and secure connections with TLS.

The plugin comes with a vast set of configuration options and connection examples. Advanced users may consult the scaling and replication documentation.

Comparing to Alternatives

Redis Object Cache is one of the most established object caching solutions for WordPress, competing with a range of tools targeting different caching backends and use cases.

Top alternatives

Strengths

Mature, widely trusted plugin with a large base of positive reviews
Simple setup that works out of the box for standard hosting configurations
Responsive developer support noted by multiple reviewers
Clean upgrade path to a more advanced Pro version (Object Cache Pro) for demanding sites

Weaknesses

Limited configuration flexibility for complex or containerized Redis setups
No graceful fallback if the Redis connection fails, unlike some competing caching tools

User Sentiment Analysis

With 176 ratings, Redis Object Cache holds a strong 4.5-star average, driven by an overwhelming 83.5% five-star share. Roughly 12.5% of reviews are 1-2 star, pointing to a smaller but vocal group frustrated by specific technical and product decisions.

Positive highlights

"IT JUST WORKS! ... Simply the best!" — The Godfather
"Redis Object Cache works great ... support: super responsive and helpful" — andypp
"I rarely face any error and it was quick" — surviving404
"Amazing plugin ... don't forget to disable Redis Cache for your ERP imports/wp cli" — alexandershu
"Nice work bro Thanks a lot ... I also recommend using the Pro version" — MDZ

Common complaints

Difficult to reconfigure for non-default setups, such as changing the Redis IP in multi-container environments
Unwanted adverts displayed in the WordPress dashboard, which frustrated users who felt it undermined trust
No fail-safe behavior when the Redis instance goes down, causing the site to crash instead of degrading gracefully

Weaknesses

Site-breaking behavior on Redis connection failure, unlike alternatives with safer fallbacks
In-dashboard promotional adverts that some users find intrusive
Limited flexibility for advanced or non-standard server architectures

Who Should Use This?

Best for

Ideal for WordPress site owners and developers running a standard, single-server Redis setup who want a proven, easy-to-configure object caching solution with strong community support and an optional professional upgrade path.

Not ideal for

Less suitable for teams running complex, distributed, or containerized infrastructure needing custom Redis connection settings, or for anyone who needs guaranteed uptime protection if Redis becomes unavailable. Users sensitive to in-dashboard promotional messaging may also be put off.

Pricing & Value

Free version includes

The free version provides full object caching functionality using Redis, covering setup, cache management, and basic configuration — enough for most standard WordPress installations to see meaningful performance gains at no cost.

Pro version (95 USD / month)

A separate commercial product, Object Cache Pro, is promoted within the plugin and offers enhanced performance, advanced configuration options, analytics, and dedicated support for larger or more demanding sites.

Final Verdict

Redis Object Cache earns its strong reputation with a high satisfaction rate, a clean security record with zero known vulnerabilities, and dependable performance for typical WordPress hosting environments. The bulk of negative feedback centers on edge cases: complex multi-container setups, lack of failover handling, and dashboard advertising rather than core functionality failures.

For most users running conventional Redis configurations, this plugin remains a top choice among object caching tools, backed by responsive support and a viable upgrade path. Those with more elaborate infrastructure or zero tolerance for downtime risk should weigh the fallback limitations carefully, and may want to compare alternatives like WP Redis or Batcache before committing.