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Speed of Light (PRO)
The Fastest Way to Speed Up WordPress — Speed of Light
Speed of Light is an all-in-one WordPress performance plugin. It combines three layers of caching — a static disk page cache, a built-in Redis object cache, and full-page caching at Cloudflare's edge (on the free plan) — with automatic CSS, JavaScript, image, and font optimization. A real-browser cloud engine works out exactly what each page needs, and Autopilot applies the safe fixes for you. The result: green Core Web Vitals without a developer, a stack of plugins, or a monthly CDN bill.
serves next-gen WebP/AVIF, and self-hosts Google Fonts.
• CORE WEB VITALS — measures LCP, INP and CLS from real visitors (75th
percentile field data, like Google CrUX) and fixes what's dragging them
down.
One plugin does the job of a page-cache plugin, an object-cache add-on, a
CDN subscription, an image optimizer, and a "remove unused CSS" tool.
HOW IT WORKS (the mechanism, step by step)
1. INSTALL & IT CONFIGURES ITSELF.
On activation, Speed of Light profiles your site and server (PHP
version, object-cache backend, theme, host capabilities) and turns on
the safe optimizations automatically. There are no "modes" to pick — it
tunes itself.
2. PAGES ARE SERVED FROM CACHE.
Once a page is cached, it's served as static HTML from disk — skipping
PHP and the database entirely — and, when Cloudflare is connected, from
the edge. A background preloader warms every page so visitors always
hit a ready copy.
3. A REAL BROWSER DECIDES WHAT EACH PAGE NEEDS.
For licensed sites, each page is rendered once in a real cloud Proprietary Chromium
browser. That render reports exactly which CSS the page actually uses,
the true Largest Contentful Paint element to preload, the correct image
dimensions, layout-shift (CLS) fixes, and which scripts are safe to
delay. Speed of Light then applies all of it and serves the optimized
page from your own server. If the cloud is ever unavailable, it falls
back to on-server optimization — so your site can never break.
4. AUTOPILOT KEEPS IT FAST.
The Performance Detective diagnoses issues in plain English and applies
the safe fixes for you, snapshotting your previous settings first. Every
change is visible, and anything can be undone in one click. Excluded
pages (cart, checkout, account) are left completely untouched.
Zero-config: background tasks run on normal site traffic, so preloading and
purging work even without WP-Cron or a server cron job. Install, activate,
walk away.
About Speed of Light (PRO) on Product Hunt
“The Fastest Way to Speed Up WordPress — Speed of Light”
Speed of Light (PRO) was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #160 on the daily leaderboard. Speed of Light is an all-in-one WordPress performance plugin. It combines three layers of caching — a static disk page cache, a built-in Redis object cache, and full-page caching at Cloudflare's edge (on the free plan) — with automatic CSS, JavaScript, image, and font optimization. A real-browser cloud engine works out exactly what each page needs, and Autopilot applies the safe fixes for you. The result: green Core Web Vitals without a developer, a stack of plugins, or a monthly CDN bill.
On the analytics side, Speed of Light (PRO) competes within WordPress and OpenAI Day — topics that collectively have 21.6k followers on Product Hunt. The dashboard above tracks how Speed of Light (PRO) performed against the three products that launched closest to it on the same day.
Who hunted Speed of Light (PRO)?
Speed of Light (PRO) was hunted by DigitalDvie. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of Speed of Light (PRO) including community comment highlights and product details, visit the product overview.
DigitalDvie
Most WordPress sites are slow because the page is rebuilt from scratch on
every visit — PHP runs, the database is queried, then a big pile of CSS
and JavaScript is shipped to the browser.
Speed of Light removes that work at every layer:
• PAGE CACHE — serves a ready-made HTML copy of each page straight from
disk, before WordPress or PHP even boot.
• OBJECT CACHE (built in) — a native Redis object cache stores the
repeated database queries WordPress makes, so uncached pages build far
faster. This is our own engine — no separate "Pro" add-on to buy.
• EDGE CACHE — connects to Cloudflare using the modern Cache Rules API to
serve full pages from Cloudflare's global edge, answering visitors close
to them. It works on Cloudflare's FREE plan — no monthly CDN bill.
• ASSET OPTIMIZATION — minifies and combines CSS/JS, removes unused CSS,
inlines critical CSS, delays non-critical JavaScript, lazy-loads images,
serves next-gen WebP/AVIF, and self-hosts Google Fonts.
• CORE WEB VITALS — measures LCP, INP and CLS from real visitors (75th
percentile field data, like Google CrUX) and fixes what's dragging them
down.
One plugin does the job of a page-cache plugin, an object-cache add-on, a
CDN subscription, an image optimizer, and a "remove unused CSS" tool.
HOW IT WORKS (the mechanism, step by step)
1. INSTALL & IT CONFIGURES ITSELF.
On activation, Speed of Light profiles your site and server (PHP
version, object-cache backend, theme, host capabilities) and turns on
the safe optimizations automatically. There are no "modes" to pick — it
tunes itself.
2. PAGES ARE SERVED FROM CACHE.
Once a page is cached, it's served as static HTML from disk — skipping
PHP and the database entirely — and, when Cloudflare is connected, from
the edge. A background preloader warms every page so visitors always
hit a ready copy.
3. A REAL BROWSER DECIDES WHAT EACH PAGE NEEDS.
For licensed sites, each page is rendered once in a real cloud Proprietary Chromium
browser. That render reports exactly which CSS the page actually uses,
the true Largest Contentful Paint element to preload, the correct image
dimensions, layout-shift (CLS) fixes, and which scripts are safe to
delay. Speed of Light then applies all of it and serves the optimized
page from your own server. If the cloud is ever unavailable, it falls
back to on-server optimization — so your site can never break.
4. AUTOPILOT KEEPS IT FAST.
The Performance Detective diagnoses issues in plain English and applies
the safe fixes for you, snapshotting your previous settings first. Every
change is visible, and anything can be undone in one click. Excluded
pages (cart, checkout, account) are left completely untouched.
Zero-config: background tasks run on normal site traffic, so preloading and
purging work even without WP-Cron or a server cron job. Install, activate,
walk away.