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wp.org search vs our merit ranking: “persistent object cache”

wp.org orders by popularity, so a plugin a host bundled onto millions of sites, or a big-brand one that's slow and mediocre, can sit at the top. Our ranking is built to answer a different question: which of these is actually worth installing. How this works →

For “persistent object cache”, we agree with wp.org on the top plugin, and our order differs from theirs on 14 of the top 20. 3 plugins are pushed down for signals wp.org ignores: errors, a host-installed base, or removal risk.

wp.org search ranks on

Install count (uncapped), the raw star average, freshness, and support. Popularity dominates, so the biggest install base usually wins regardless of how it got there.

We add

A cap on the install boost, volume-weighted ratings, and signals wp.org can't see: whether it throws errors on current PHP, whether the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

Clear Cache Everywhere shows at wp.org #6 but places #20 on merit, a gap of 14 places. Its 1K+ installs carry it up the search order; its 5.0★ average from 1 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

Comet Cache places #7 on merit, 4.4★ from 108 reviews, but shows at wp.org #19. A smaller install base keeps it further down the default search order than its quality signals alone would.

merit plugin wp.org
1 Redis Object Cache 500K+ · 4.5★ (179) wp.org #1 2 Docket Cache – Object Cache Accelerator 20K+ · 4.9★ (50) wp.org #2 3 SQLite Object Cache 10K+ · 5.0★ (51) wp.org #3 4 atec Cache APCu 3K+ · 4.9★ (21) wp.org #5 1 too low 5 xSpeed Cache: AI-Powered Performance Hub with MCP, Caching & CDN 10K+ · 5.0★ (22) wp.org #9 4 too low 6 SpeedyCache – Cache, Optimization, Performance 500K+ · 4.4★ (30) wp.org #7 1 too low 7 Comet Cache 20K+ · 4.4★ (108) wp.org #19 12 too low 8 Index WP MySQL For Speed 50K+ · 4.8★ (99) wp.org #15 ↑1 7 too low 9 Easy Optimizer – PageSpeed, Cache & Core Web Vitals (Unused CSS, Delay JS, Lazy Load) 1K+ · 4.6★ (18) wp.org #13 ↑1 4 too low 10 The Cache Purger 1K+ · 4.5★ (6) wp.org #4 6 too high 11 WP Redis 9K+ · 4.7★ (20) wp.org #14 ↑1 3 too low 12 APCu Manager 10K+ · 4.6★ (20) wp.org #10 ↑1 2 too high 13 WPCore Plugin Manager 9K+ · 4.8★ (32) wp.org #21 8 too low 14 Speculative Loading 70K+ · 5.0★ (18) wp.org #24 ↓1 10 too low 15 LWS Optimize – All-in-One Speed Booster & Cache Tools 20K+ · 4.6★ (9) wp.org #18 3 too low 16 Cache Cleaner X-Ray – Performance & Database Diagnostics 200+ · 5.0★ (4) wp.org #11 ↑1 5 too high 17 Pods Alternative Cache 5K+ · 4.3★ (6) wp.org #8 9 too high 18 Nginx Cache Purge Preload 200+ · 5.0★ (4) wp.org #22 ↓1 4 too low 19 Wonder Cache 20+ · 5.0★ (4) wp.org #23 ↓1 4 too low 20 Clear Cache Everywhere 1K+ · 5.0★ (1) wp.org #6 14 too high 21 {eac}ObjectCache – a persistent object cache using SQLite & APCu to cache WordPress objects. 20+ · 5.0★ (2) wp.org #16 ↓6 5 too high 22 Pantheon Advanced Page Cache 10K+ · 5.0★ (1) wp.org #12 ↑1 10 too high 23 Object Cache for APCu – ZapCu 300+ · 0.0★ (0) wp.org #17 6 too high 24 S SnapCache 70+ · 5.0★ (1) wp.org #20 4 too high

Merit ranking caps the install boost at 1M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted Bayesian score and a Wilson lower bound, and keeps wp.org's own freshness and compatibility decays. Method from the plugin-directory source; see Meta Trac #8298. Positions are tracked daily from the first visit to a keyword, so the small arrows show movement since tracking began.