How Speed of Light compares.
Most caching tools sell speed in pieces — an image add-on here, an object cache there, a CDN subscription on top. Speed of Light puts the whole stack in one license. Here's how it lines up against the plugins you already know.
| Speed of Lightall-in-one | |||||||
|---|---|---|---|---|---|---|---|
| Full-page cache HTML on disk | ✓ | ✓ | ✓ | ✓best on LiteSpeed | — | ✓ | ✓ |
| Edge HTML caching full pages from the edge | ✓Cloudflare, free plan | ~via Cloudflare APO | ~FlyingCDN | ~QUIC.cloud | — | ✓own CDN | ~Pro |
| Cloudflare cache rules & auto-purge | ✓ | ✓add-on | ✓ | ~ | ~ | — | ✓ |
| Built-in Redis object cache persistent, with GUI | ✓ | — | — | ✓ | — | — | ✓ |
| Image optimization WebP / AVIF, lazy-load | ✓on your server | Add-onImagify | ✓ | ✓QUIC.cloud | ~lazy-load only | ✓ | ~ |
| Critical & unused CSS | ✓ | ✓ | ✓ | ✓ | ~remove unused only | ✓ | ~ |
| Delay, defer & minify JavaScript | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Font optimization self-host, preload, swap | ✓ | ~ | ✓ | ✓ | ✓ | ✓ | ~ |
| Core Web Vitals tuning LCP & CLS | ✓ | ✓ | ✓ | ✓ | ~ | ✓ | ~ |
| Preloading & cache warming | ✓ | ✓ | ✓ | ✓ | ~ | ✓ | ✓ |
| Real-user monitoring field Core Web Vitals | ✓first-party | — | — | — | — | ✓ | — |
| Auto-configuration engine | ✓Smart Configuration | ~safe defaults | ~ | ~presets | — | ✓ | — |
| Database cleanup | ✓ | ✓ | ~ | ✓ | ✓ | — | ✓ |
| Pricing model | Annual · per-site | Annual | Annual | Free plugin* | Annual | Freemium · metered | Free + Pro |
Comparison compiled June 2026 from each product's publicly documented features and default offering. “Partial” marks capabilities that are limited, server-dependent, or require a higher tier or external service. Product names and trademarks belong to their respective owners and are used for identification only. We don't publish competitor speed benchmarks — always test on your own site. * LiteSpeed Cache is a free plugin; its image optimization, CDN and CSS generation run through QUIC.cloud, which is metered above the free quota. Perfmatters is a script/asset manager rather than a page-cache plugin — included here because it's commonly compared alongside caching tools.
One license. The whole stack.
The features other plugins split across add-ons, subscriptions and separate products — built into a single engine that configures itself.
Everything in the box
Page cache, edge, object cache, image optimization, CSS/JS tuning and monitoring — no add-ons to buy, nothing metered.
A premium object cache, built in
A compressed, GUI-managed Redis object cache — the kind others sell as a separate plugin, or skip entirely.
One-click Cloudflare edge
Full-page HTML served from Cloudflare's edge on the free plan, via Cache Rules — no monthly CDN bill.
Image optimization on your server
WebP & AVIF conversion that runs on your own host — no per-image fees and no uploading your media to a third party.
Local disk page cache
Gzip/Brotli HTML served straight from disk by an advanced-cache.php drop-in — before WordPress even boots.
Core Web Vitals, handled
Real LCP detection, layout-shift prevention and first-party field monitoring — so you can prove the gains, not guess.
Where we'd switch you over.
Every one of these is a good plugin. Here's the honest reason teams move to Speed of Light.
WP Rocket
A great caching plugin — but image optimization (Imagify) and its CDN are separate paid products, and there's no built-in object cache. Speed of Light bundles all three.
FlyingPress
Excellent CSS and image optimization. Where it stops: no Redis object cache, no real-user monitoring and no auto-configuration — all built into Speed of Light.
LiteSpeed Cache
Superb on LiteSpeed servers, with most extras routed through metered QUIC.cloud. Speed of Light is server-agnostic — Cloudflare edge, your own image conversion, nothing metered.
Stop paying for speed in pieces.
One install, one key, one price — page cache, edge, object cache, images and Core Web Vitals, all configured for your stack.