After one year in development we launched in 2026 🥳
Built for speed

Extremely Fast performance engine for WordPress

Speed of Light Pro serves cached HTML before WordPress loads , optionally pushes the same cache to Cloudflare’s edge, and keeps publishing workflows smooth with intelligent purges and fast preloading.

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No Gimmicks

We feel that performance plugins shouldn’t be mysterious, expensive, or fragile. Speed of Light is built to be reliable, understandable, controllable, and effective.

Local Infrastructure-first caching

Serves static HTML before WordPress boots — Varnish-like behavior without needing Varnish. Our plugin replaces the need for any caching plugin (besides object caching) on any type of website.

Works on all hosting environments

Our plugin is designed to work on all types of hosting environments–Shared, Cloud, VPS or Dedicated–it does not matter. It will only consume a negligible amount of resources which will not affect your hosting environment.

Transparent by design

No B.S. marketing, no lie just clear indicators, live stats, and reliable caching behavior. No black-box “optimization.” Our plugin does what it says it will–on top of that we provide more optimizations than traditional plugins.

How it works

Very simple–Full Page caching locally→Sent to Cloudflare(optional) and Cloudflare caches local cache at edge, this means you get a very low TTFB. We intergrate safe caching rules, with Intelligent invalidation—all without breaking publishing. 🤯

Early-boot page cache

On a cache hit, SOL serves disk HTML immediately via advanced-cache.php — before themes, plugins, or WP queries run.

Intelligent caching rules

Caches only safe requests (GET/HEAD, 200, HTML). Admin, logged-in, feeds, previews, and unsafe cookies bypass automatically.

Warm Cache Mode

Keep you cache always warm and avoid full-site purges on normal changes. SOL performs selective archive/taxonomy purges and queues affected URLs for preload.

Cloudflare edge caching

Deploys real Cloudflare cache rules (works on Free). Smart bypasses, edge TTL controls, and selective purges tied to content updates.

What you get

A complete performance stack: caching, preloading, assets, optional image optimization, and clean WordPress UX — all with visibility.

Queue-based preloading

Batch controls, concurrency, retry tracking, stop/resume, ETA, and WP-CLI support for automation.

Built-in diagnostics

Cache coverage, hit/miss stats, response timing, system environment, object cache status, and DB footprint.

Asset versioning

Safe CSS/JS cache busting via mtime query keys. Optional Cloudflare static asset rule deployment.

Image optimization

Client-side compression and conversion with visible savings indicators — no external processing services.

Selective invalidation

Purge hooks for posts, comments, menus, terms, updates, and Woo stock — with warm cache options.

Premium admin experience

Status indicators in posts and Media Library, curated settings, and optional “kill bloat” tools.

Very Affordable

After a year of development, we officially launched in 2026 with a simple goal–to offer fair, competitive pricing in a space where costs just keep climbing. Every company in this niche keeps hiking prices, and honestly, we got tired of it — so we built this plugin. Every dollar we earn goes straight back into development to keep the project strong and sustainable. And here’s our promise to you–our pricing will never increase. We mean that — hold us to it.

Single Site

$19.99

  • Early-boot page caching
  • Preload queue + WP-CLI
  • Cloudflare edge rules (APO Like behavior)
  • Diagnostics + status indicators
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Unlimited Sites

Best value

$99.99

  • Use on unlimited sites
  • Perfect for agencies & builders
  • Consistent stack across projects
  • Everything included
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FAQ

Have a question? Great we are here to help!

Does Speed of Light use any external optimization servers?

No. The plugin runs on your WordPress environment. Cloudflare integration is optional and deploys your own rules to your zone.