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

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 “image optimisation”, we agree with wp.org on the top plugin, and our order differs from theirs on 10 of the top 20. 1 plugin is 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

Inline Image Base64 – inline specific images into the HTML shows at wp.org #9 but places #22 on merit, a gap of 13 places. Its 90+ 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

Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN places #7 on merit, 4.7★ from 1488 reviews, but shows at wp.org #22. A smaller install base keeps it further down the default search order than its quality signals alone would.

merit plugin wp.org
1 ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF 300K+ · 4.5★ (830) wp.org #1 2 WP-Optimize – Cache, Compress images, Minify & Clean database to boost page speed & performance 1M+ · 4.8★ (2617) wp.org #2 3 Imagify Image Optimization: Optimize Images | Compress & Convert to WebP/AVIF 900K+ · 4.3★ (1656) wp.org #3 4 Speed Optimizer – The All-In-One Performance-Boosting Plugin 1M+ · 4.2★ (641) wp.org #4 5 Email Encoder – Protect Email Addresses and Phone Numbers 90K+ · 4.9★ (94) wp.org #5 ↑1 6 PhastPress 10K+ · 4.9★ (99) wp.org #12 6 too low 7 Hummingbird Performance – Cache & Page Speed Optimization for Core Web Vitals | Critical CSS | Minify CSS | Defer CSS Javascript | CDN 70K+ · 4.7★ (1488) wp.org #22 15 too low 8 Safe SVG 1M+ · 4.9★ (79) wp.org #8 9 ImageKit – URL based image manipulation and optimization 1K+ · 4.7★ (13) wp.org #7 2 too high 10 Brizy – Page Builder 60K+ · 4.7★ (972) wp.org #24 14 too low 11 Preload LCP Image 3K+ · 4.8★ (5) wp.org #6 ↓1 5 too high 12 Image and video gallery from Google Drive 4K+ · 4.3★ (39) wp.org #14 2 too low 13 Featherweight 10K+ · 4.1★ (45) wp.org #17 ↑2 4 too low 14 Product Badge, Label, Countdown Timer for WooCommerce – Sale Booster 5K+ · 4.8★ (30) wp.org #23 ↑1 9 too low 15 Nexter Extension – Security, Performance, Code Snippets & Site Toolkit 10K+ · 4.7★ (13) wp.org #20 ↑2 5 too low 16 Gumlet – Image optimization with Resize, Compression, Lazy load, Caching & CDN delivery 400+ · 4.4★ (10) wp.org #15 1 too high 17 LWS Tools 10K+ · 5.0★ (6) wp.org #13 4 too high 18 Performance Optimisation — · 5.0★ (4) wp.org #16 ↑2 2 too high 19 SMNTCS Deactivate Image Compression 1K+ · 0.0★ (0) wp.org #10 9 too high 20 EffortLess Simple Image Optimiser 30+ · 0.0★ (0) wp.org #11 9 too high 21 Cleanup Orphan Images 100+ · 5.0★ (2) wp.org #18 ↑2 3 too high 22 Inline Image Base64 – inline specific images into the HTML 90+ · 5.0★ (1) wp.org #9 13 too high 23 ABCode Cache Warmer 100+ · 5.0★ (2) wp.org #21 2 too high 24 ProRank SEO 10+ · 5.0★ (1) wp.org #19 ↑2 5 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.