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Service · Performance & Core Web Vitals

Performance &Core Web Vitals

A site that takes 4 seconds to load loses 25% of visitors. Every second is money.

That's not a guess — it's Google's data. Another one: 53% of visitors abandon a site that takes longer than three seconds to load. Another: every 100ms improvement in speed increases conversions by 1%.

Performance isn't a "nice to have." It's Google, it's customers, it's money. We build fast sites. Green PageSpeed scores, metrics that meet every Google requirement, and load times under one second. No magic — a method.

01 / Why it matters

Why it matters

Performance moves four things you actually measure: rankings, conversions, mobile experience, and competitive position.

  • 01
    SEO
    Core Web Vitals have been an official Google ranking factor since 2021. A slow site gets buried. A fast site rises.
  • 02
    Conversions
    Amazon found every 100ms of slowness drops sales by 1%. Walmart — 2% conversion lift for every second saved.
  • 03
    Mobile
    60% of traffic today is mobile. On cellular networks, slowness hits several times harder.
  • 04
    Competition
    If your competitor loads in one second and you load in five — they got the customer. Yours.

02 / The metrics

What are Core Web Vitals?

The three metrics Google actually measures. There are more (TTFB, FCP, TTI) — but these are the three that decide rankings.

  • LCPTarget < 2.5 seconds · Ours Ours: typically under 1s
    Largest Contentful Paint
    How long it takes for the largest element on screen to appear. Usually the hero image or main headline.
  • INPTarget < 200ms · Ours Replaced FID in March 2024
    Interaction to Next Paint
    How fast the site responds to a click, a keystroke, or any input. The most brutal of the three.
  • CLSTarget < 0.1 · Ours How much things jump around
    Cumulative Layout Shift
    Do things "jump" on the screen while loading? A button that moves the moment you try to click it? That's high CLS.

03 / What we do

What we do

Optimization at every layer — from the browser to the database. Performance breaks everywhere, and we fix it everywhere.

  • 01
    Performance audit
    We audit everything that matters: load times, bundle size, rendering, JavaScript, database queries. We pinpoint exactly where the problem lives.
  • 02
    Image optimization
    Compression, modern formats (WebP, AVIF), lazy loading, responsive sizes. Images are the #1 reason sites are slow.
  • 03
    JavaScript optimization
    Code splitting, lazy loading, removing unused libraries, tree shaking. Most sites ship 70% more JavaScript than they need.
  • 04
    CSS optimization
    Minimal code, eliminating unused CSS, loading critical styles first.
  • 05
    Hosting & CDN upgrade
    If your hosting sits in one region and your customers are spread across the country or the world, every request pays for the distance. We move rendering and caching to the edge.
  • 06
    Database optimization
    N+1 queries, missing indexes, slow queries. We fix the bottleneck.
  • 07
    Advanced caching
    At every layer: browser, CDN, server, database. Every millisecond we can save — we save.
  • 08
    SSR & Edge Functions
    Pages served pre-rendered, no waiting. Faster — and better for SEO.

04 / Tools

Our toolkit

A full stack of measurement, monitoring, optimization, and edge tooling — Lighthouse for testing, Real User Monitoring for ground-truth data, edge compute for the fastest delivery.

Performance Testing

  • Lighthouse
  • PageSpeed Insights
  • WebPageTest
  • Calibre

Real User Monitoring

  • Vercel Analytics
  • Cloudflare
  • New Relic
  • Datadog

Profiling

  • Chrome DevTools
  • React Profiler
  • Flame Graphs

CDN & Edge

  • Cloudflare
  • Vercel Edge
  • AWS CloudFront
  • Fastly

Image Optimization

  • Next.js Image
  • Cloudinary
  • ImageKit
  • AVIF / WebP

Database & Cache

  • PostgreSQL tuning
  • Redis
  • Memcached
  • Edge KV

05 / How we work

How we work

  1. 01

    Performance audit

    We pull real data: PageSpeed, Lighthouse, and field data from Real User Monitoring. No guessing.

  2. 02

    Prioritize by impact

    Not every issue is equal. We start with the 20% of fixes that deliver 80% of the result.

  3. 03

    Fix in code

    Not a "plugin that fixes everything." Real fixes — code, images, queries, caching strategy.

  4. 04

    Measure after every change

    We don't estimate — we measure. Before and after, in a real user environment.

  5. 05

    Continuous monitoring

    Sites change. A new feature can slow everything down. We track performance over time and alert if something regresses.

06 / Who it's for

Who this is for

  • E-commerce sites
    Where every second is money. Faster site = higher conversions. Direct.
  • Content & media sites
    That need high SEO rankings. Core Web Vitals is a ranking factor.
  • SaaS products
    Where users work all day. Bad performance = users churning.
  • High-traffic applications
    Every optimization affects thousands of users at once.
  • Anyone with a red PageSpeed score
    And realized it's time to fix it. We move fast, with real measurements behind every change.

07 / Why us

Why us

  • No "it's not that bad"
    A red score is a red score. We don't explain it away — we fix it.
  • Measure, don't guess
    Real User Monitoring on actual field data. Not just Lighthouse in a lab.
  • We understand the whole stack
    Frontend, backend, database, network. Performance lives across all of them — and so does the fix.
  • Clear, measurable targets
    We start from a baseline and commit to a target. If we don't hit it — we're having a conversation.

FAQ

Frequently asked questions

Let's talk

Is your site slow?

An initial performance audit, no strings attached. We'll tell you exactly where you stand, how much you can gain, and how long it'll take.

Straight. To the point. On time.