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wp.org search vs our merit ranking: “auto resize images”

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 “auto resize images”, we agree with wp.org on the top plugin, and our order differs from theirs on 9 of the top 20.

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 the install base is organic or host-pushed, and its risk of being pulled.

Ranked above its merit

Compress, Resize & Lazy Load Images – WPvivid Image Optimization shows at wp.org #5 but places #20 on merit, a gap of 15 places. Its 10K+ installs carry it up the search order; its 4.3★ average from 7 reviews, plus freshness and upkeep, place it lower on our volume-weighted scale.

Buried gem

Photo Gallery by 10Web – Mobile-Friendly Image Gallery places #11 on merit, 4.5★ from 1,581 reviews, but shows at wp.org #18. A smaller install base keeps it further down the default search order than its quality signals alone would.

How this rank is calculated

Each plugin's merit score multiplies these inputs together: how recently it was updated, how current its "tested up to" WordPress version is, its install base (log scale, capped at 10 million), its support thread resolution rate, and a rating score. The rating score weights the star average by review volume against a sitewide prior, then scales it by the lower bound of the share of 4 and 5 star reviews. A plugin with 3.7 stars from tens of thousands of reviews can still outscore a 4.9 with a few dozen, because the small sample carries less certainty.

A health factor between 0.4 and 1.15 then adjusts that score for what wp.org's search can't see: PHP fatals or failed activations on a test install, PHP and WordPress compatibility, memory and page-speed footprint, suspicious review patterns, closure risk, and a large install base with very few reviews. Clean, adopted plugins earn a small lift.

A keyword ranking starts from wp.org's search order for the term, weighting each position by 1 divided by its place, then applies the merit correction and health factor above. Relevance to the keyword stays in the result, so the order can differ from the all-categories list on /best, which scores plugins with no search term.

Hover a row to see the main reason for its position.

merit plugin wp.org
1 Smush – Image Optimization, Compression, Lazy Load, WebP & CDN 1M+ · 4.8★ (6,053) wp.org #1 2 Imagify Image Optimization: Optimize Images | Compress & Convert to WebP/AVIF 900K+ · 4.3★ (1,657) wp.org #2 3 EWWW Image Optimizer 1M+ · 4.8★ (1,844) wp.org #4 wp.org ranks it 1 place below merit 4 ShortPixel Image Optimizer – Optimize Images, Convert WebP & AVIF 300K+ · 4.5★ (830) wp.org #6 wp.org ranks it 2 places below merit 5 WP SVG Images 30K+ · 5.0★ (13) wp.org #3 wp.org ranks it 2 places above merit 6 Admin and Site Enhancements (ASE) 200K+ · 5.0★ (423) wp.org #9 wp.org ranks it 3 places below merit 7 Robo Gallery – Photo & Image Slider 40K+ · 4.3★ (406) wp.org #8 wp.org ranks it 1 place below merit 8 Instant Images – One-click Image Uploads from Unsplash, Openverse, Pixabay, Pexels, and Giphy 100K+ · 4.8★ (59) wp.org #7 wp.org ranks it 1 place above merit 9 ShortPixel Adaptive Images – WebP, AVIF, CDN, Image Optimization 10K+ · 4.8★ (145) wp.org #10 wp.org ranks it 1 place below merit 10 Optimole – Optimize Images | Convert WebP & AVIF | CDN & Lazy Load | Image Optimization 200K+ · 4.7★ (640) wp.org #14 ↑1 wp.org ranks it 4 places below merit 11 Photo Gallery by 10Web – Mobile-Friendly Image Gallery 100K+ · 4.5★ (1,581) wp.org #18 wp.org ranks it 7 places below merit 12 Jetpack – AI Agents & MCP, Security, Backup & Analytics 3M+ · 3.7★ (2,409) wp.org #11 wp.org ranks it 1 place above merit 13 Photo Gallery, Sliders, Proofing and Themes – NextGEN Gallery 300K+ · 4.3★ (4,342) wp.org #19 wp.org ranks it 6 places below merit 14 Perfect Images: Regenerate Thumbnails, Image Sizes, WebP & AVIF 60K+ · 4.8★ (279) wp.org #15 ↓3 wp.org ranks it 1 place below merit 15 Folders – Unlimited Folders to Organize Media Library Folder, Pages, Posts, File Manager 90K+ · 5.0★ (1,527) wp.org #23 ↓1 wp.org ranks it 8 places below merit 16 Kraken.io Image Optimizer – Compress, Convert to WebP & AVIF, Resize & Bulk Optimize 10K+ · 4.5★ (119) wp.org #13 ↑1 wp.org ranks it 3 places above merit 17 CompressX — AVIF & WebP Converter, Media Replacement 40K+ · 5.0★ (197) wp.org #17 18 Offload, AI & Optimize with Cloudflare Images 1K+ · 4.9★ (33) wp.org #12 ↑1 wp.org ranks it 6 places above merit 19 Speed Optimizer – The All-In-One Performance-Boosting Plugin 1M+ · 4.2★ (641) wp.org #16 wp.org ranks it 3 places above merit 20 Compress, Resize & Lazy Load Images – WPvivid Image Optimization 10K+ · 4.3★ (7) wp.org #5 wp.org ranks it 15 places above merit 21 Drag and Drop Multiple File Upload for Contact Form 7 60K+ · 4.8★ (94) wp.org #22 ↑1 wp.org ranks it 1 place below merit 22 Gumlet – Image optimization with Resize, Compression, Lazy load, Caching & CDN delivery 400+ · 4.4★ (10) wp.org #21 ↓1 wp.org ranks it 1 place above merit 23 GrandPlugins Image Watermark 200+ · 5.0★ (2) wp.org #20 ↑1 wp.org ranks it 3 places above merit 24 CodingBunny Image Optimizer 600+ · 5.0★ (1) wp.org #24

Merit ranking caps the install boost at 10M (wp.org leaves it uncapped), replaces the raw star average with a volume-weighted 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.