One URL in,
stack-aware fixes out.

Where this pays off most

Not whether your site is "slow" in the abstract — whether slow is costing you customers. If any of these match, the audit pays for itself.

• 01

  Restaurants · cafes · bakeries

  Mobile visitors who hit your menu / location / booking page wait 3+ seconds, and roughly half just hit back. The Naver / Google traffic you paid for leaves with a "slow site" impression.

• 02

  Clinics · medical practices

  Heavy booking pages push patients to the phone — or to a competitor. Medical-site trust is fragile; "slow" reads as "not serious".

• 03

  E-commerce (Cafe24 · Makeshop · gnuboard)

  Any laggy step between landing and cart drops checkout-completion sharply, especially on mobile. Common pain on Korean DIY commerce stacks.

• 04

  Real estate · learning centers · local biz

  First-impression pages (map / listing / schedule) that feel sluggish don't get a second visit. You're paying for traffic that bounces in the first 3 seconds.

• 05

  WordPress blogs · content sites

  Plugin creep gradually slows the site. Most owners assume it's the hosting and pay to migrate — usually it isn't.

What happens after you pay

From URL to action plan in four steps. No add-ons, same domain stays re-runnable forever.

1. 01

   Drop the URL (free)

   Score + issue count appear in 5 seconds. Confirm there's actually a problem before paying.

2. 02

   $29 unlock · one-time

   Stack auto-detected, then 5–12 platform-specific actions written up on a single page. WordPress site gets WP-specific advice, gnuboard site gets gnuboard-specific advice.

3. 03

   Take the guide

   Apply it yourself, or hand it to your dev / agency. The "where to look" being clear cuts the contractor estimate down sharply.

4. 04

   Re-run forever

   After fixes ship, re-scan to confirm the score moved. Same domain stays unlocked.

What we analyze

Lighthouse Performance metrics and a stack fingerprint at the same time, then we merge them into actions matched to your platform. The result page reads in order: score → issue counts → recommendations.

• 01 · Performance metrics
  • Lighthouse Performance score (mobile)
  • Core Web Vitals — LCP · CLS · FID
  • Per-audit estimated savings (ms)
  • Total payload · compression · caching state
• 02 · Automatic stack detection
  • Next.js · Nuxt · Gatsby · React · Vue
  • WordPress · Shopify · Webflow · Squarespace · Wix
  • Response headers + HTML fingerprint
  • Multi-stack matches (e.g. Next.js + headless WP)
• 03 · Audit surfaces
  • Compression · render-blocking resources
  • Images — responsive · modern formats · optimization
  • JavaScript — unused code · modern build targets
  • Server response time · preconnect hints
• 04 · What you get
  • 5–12 recommendations (stack-prioritized)
  • Each item: 1-line reason · 1–2 line action · savings estimate
  • First-party guidance per stack (e.g. WP Rocket · next/image)
  • Re-runnable — same domain stays unlocked after one purchase

Why not just use the free PageSpeed Insights page

Lighthouse results themselves are free for anyone. SPEED:LAB's difference is that we tell you what to actually do on your stack — not just what's slow.

• 01

  Stack-aware, not generic

  When a WordPress site fails the "render-blocking resources" audit, the free PSI shows a generic "add async/defer". SPEED:LAB turns it into "enable WP Rocket's Delay JS option, then use Asset CleanUp to drop plugin scripts on pages where they aren't needed".

• 02

  Capped at 12 — ranked for you

  Lighthouse spills 30+ audits. You don't know where to start. SPEED:LAB sorts by severity + estimated savings and keeps only the dozen that actually move the score.

• 03

  One-time $29 — re-run forever

  Pay once, the same domain stays unlocked. Re-run any time to confirm a fix landed. No subscription.

• 04

  One-page report

  Don't hand a 200KB Lighthouse JSON to your designer or developer. Get a one-page action list and pass that along as the spec.