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wp.org search vs our merit ranking: “optimize image”

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 “optimize image”, we agree with wp.org on the top plugin, and our order differs from theirs on 7 of the top 20. 4 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

Image Optimizer – Compress Images and Convert to WebP or AVIF shows at wp.org #10 but places #23 on merit, a gap of 13 places. Its 1M+ installs carry it up the search order; its 1.7★ average from 81 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

UpdraftPlus: WP Backup & Migration Plugin places #12 on merit, 4.8★ from 8706 reviews, but shows at wp.org #20. A smaller install base keeps it further down the default search order than its quality signals alone would.

merit plugin wp.org
1 WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 1M+ · 4.8★ (2617) wp.org #1 2 Imagify Image Optimization: Optimize Images | Compress & Convert to WebP/AVIF 900K+ · 4.3★ (1656) wp.org #2 3 ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF 300K+ · 4.5★ (830) wp.org #3 ↑1 4 Converter for Media – Optimize images | Convert WebP & AVIF 500K+ · 4.9★ (1106) wp.org #4 ↓1 5 Smush – Image Optimization, Compression, Lazy Load, WebP & CDN 1M+ · 4.8★ (6053) wp.org #5 ↑1 6 EWWW Image Optimizer 1M+ · 4.8★ (1842) wp.org #6 ↓1 7 Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization 200K+ · 4.7★ (640) wp.org #7 8 Modula Image Gallery – Photo Grid & Video Gallery 100K+ · 4.7★ (616) wp.org #9 ↑4 1 too low 9 Elementor Website Builder – more than just a page builder 10M+ · 4.5★ (7323) wp.org #8 ↑1 1 too high 10 LiteSpeed Cache 7M+ · 4.8★ (2778) wp.org #11 ↓3 1 too low 11 WP Fastest Cache – WordPress Cache Plugin 1M+ · 4.9★ (4228) wp.org #17 ↑5 6 too low 12 UpdraftPlus: WP Backup & Migration Plugin 4M+ · 4.8★ (8706) wp.org #20 8 too low 13 Yoast SEO – Advanced SEO with real-time guidance and built-in AI 10M+ · 4.8★ (27821) wp.org #23 10 too low 14 Robin Image Optimizer – Unlimited Image Optimization, WebP & AVIF 100K+ · 4.4★ (131) wp.org #12 ↓1 2 too high 15 Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF 60K+ · 4.8★ (279) wp.org #18 3 too low 16 All in One SEO – AI SEO Plugin to Boost SEO Rankings & Traffic (Schema, Local SEO, Sitemap & SEO Insights) 2M+ · 4.7★ (5231) wp.org #16 17 W3 Total Cache 900K+ · 4.4★ (5420) wp.org #24 7 too low 18 Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize 10K+ · 4.5★ (119) wp.org #19 1 too low 19 JCH Optimize 4K+ · 4.4★ (69) wp.org #13 ↓1 6 too high 20 reSmush.it : The original free image compressor and optimizer plugin 100K+ · 4.3★ (166) wp.org #22 ↓1 2 too low 21 Cimo – Free Instant Image Optimizer & WebP Converter 10K+ · 4.9★ (20) wp.org #21 ↓7 22 LWS Optimize – All-in-One Speed Booster & Cache Tools 20K+ · 4.6★ (9) wp.org #15 ↑2 7 too high 23 Image Optimizer – Compress Images and Convert to WebP or AVIF 1M+ · 1.7★ (81) wp.org #10 13 too high 24 Image Prioritizer 40K+ · 5.0★ (1) wp.org #14 ↑1 10 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.