Cookies

We use analytics cookies to understand how the site is used. Decline and analytics stays off — your choice. See our Privacy Policy.

Core Web Vitals

Pass Google’s
Core Web Vitals.

Slow pages quietly cost you rankings and customers. We fix your site — or build new pages — to score 3/3 green on PageSpeed. Agentic coding speed, 20+ years of performance engineering.

pagespeed · core web vitalsbefore
41/ 100

Performance

Core Web Vitals: failing

0/3 green
LCP
4.6s
INP
540ms
CLS
0.34
theswarm.at3/3 green

Why it matters

Speed is a ranking factor.
And a conversion factor.

Core Web Vitals are part of Google’s page-experience signals. Between two similar pages, the faster, more stable one wins — and a slow site quietly holds back every page you publish.

It’s not just SEO. Every extra second of load time drops conversions and grows bounce. Getting to green pays for itself twice — in rankings and in revenue.

Ranking

Confirmed Google page-experience signal — green vitals help you climb.

+ Conversions

Faster pages convert more. Speed correlates directly with revenue.

− Bounce

Most visitors leave a page that takes over 3s to load. Fewer do when it’s instant.

LCP≤ 2.5s

Largest Contentful Paint

How fast the main content loads.

INP≤ 200ms

Interaction to Next Paint

How fast the page responds to input.

CLS≤ 0.1

Cumulative Layout Shift

How stable the layout is while loading.

What we do

Fix what you have, or build it green.

We audit on real-user data, do the optimization work with AI agents under senior review, and re-test until every metric passes — on real devices, not just in the lab.

Real-field (CrUX) + lab (Lighthouse) diagnosis
Image, font & asset optimization
Render-blocking JS/CSS eliminated
Code-splitting, lazy-loading & caching
Layout-shift and INP fixes
CDN, compression & edge caching
Before/after PageSpeed report
Re-test until all three pass

Pricing

Fixed prices. Green results.

Start with an audit. If you want us to do the work, the audit fee comes off the fix.

Speed Audit

Know exactly what’s costing you rankings.

€900

fixed · credited toward a fix

A full PageSpeed & Core Web Vitals diagnosis of your site — field data, lab data, and a prioritised, costed fix list. Yours to keep, whoever does the work.

  • Field (CrUX) + lab (Lighthouse) audit
  • Per-page Core Web Vitals breakdown
  • Prioritised, costed fix list
  • Quick wins you can ship today
Start with Speed Audit
Most popular

Vitals Fix

We make your existing site pass — 3/3 green.

from €2,500

flat · scoped from the audit

We do the work: optimize, refactor and re-test your current site until all three Core Web Vitals pass on real devices. Agentic coding speed, senior-engineer judgement.

  • Everything in the audit
  • Hands-on performance engineering
  • Image / font / JS / CSS optimization
  • Layout-shift & INP fixes
  • Re-tested until 3/3 green
  • Before/after report you can show
Start with Vitals Fix

Built Green

New pages, green from day one.

from €4,500

flat · new pages or site

We design and build new pages — or a whole site — engineered to hit 3/3 green Core Web Vitals and top Lighthouse scores out of the box, then keep them there.

  • Performance-first build
  • Sub-second load times
  • Perfect-score Lighthouse target
  • Semantic, AI-crawlable markup
  • Ongoing monitoring (with SLA)
Start with Built Green

Questions

Core Web Vitals, answered.

Yes. Core Web Vitals are a confirmed Google ranking signal and part of the page-experience system. They rarely outrank great content on their own, but between two similar pages the faster, more stable one wins — and a slow site quietly suppresses every page you publish.

Google grades three metrics — LCP, INP and CLS — as good, needs-improvement, or poor. “3/3 green” means all three are in the good range on real-user (field) data, not just a one-off lab test. That’s the bar we work to.

We pair AI coding agents with 20+ years of performance engineering. The agents do the repetitive optimization work fast; we direct, review, and verify every change against real metrics. You get speed without the guesswork — or the breakage.

Almost always. WordPress, Shopify, React/Vite, Webflow, custom — we audit first, tell you honestly what’s achievable, then fix it. If a platform is the real bottleneck, we’ll say so and show you the path.

Find out where you stand.

We’ll run your site through a full Core Web Vitals audit and show you exactly what’s costing you rankings — and what it takes to get to green.

Get a speed audit