Performance Audit

Find the bottleneck. Fix what matters.

Understand what slows your website down and why. Measure the critical journeys, make targeted changes and compare the result under the same conditions.

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What's included

The stack is selected for your requirements; these are options, not a requirement to use every tool.

Measure the experience

Look at loading, responsiveness and layout stability. Combine available field data with repeatable mobile and desktop diagnostics.

Trace the cause

Inspect images, fonts, JavaScript, rendering and network dependencies. Separate the symptoms from the resources or work causing the delay.

Improve & verify

Prioritize changes by impact and effort. Re-measure after each meaningful fix and leave budgets that help catch future regressions.

Core Web Vitals audit (LCP, CLS, INP)
Lighthouse & PageSpeed deep analysis
JavaScript bundle analysis (source maps)
Render performance profiling
Image & asset optimization
Caching strategy review
Third-party script impact analysis
Detailed written report with priorities

How it works

Establish current performance scores across key pages.
What you receive
An agreed set of pages, devices, user journeys and measurement conditions.
Profile runtime, analyze bundles, identify root causes.
Rank issues by impact and effort. Create actionable roadmap.
Apply fixes - code splitting, image optimization, caching, etc.
Before/after metrics, detailed findings, and ongoing recommendations.

What you receive

An agreed set of pages, devices, user journeys and measurement conditions.

Frequently Asked Questions

What do you measure in a performance audit?

I audit Core Web Vitals (LCP, INP, CLS), Lighthouse scores, bundle size, render-blocking resources, image optimization, server response times, caching headers, and JavaScript execution time. I use Lighthouse, WebPageTest, and Chrome DevTools for comprehensive analysis.

How much can performance be realistically improved?

Most websites I audit see a 30-70% improvement in Lighthouse scores and significant Core Web Vitals gains. Results vary by starting point - sites with unoptimized images, large JS bundles, and no caching tend to see the biggest improvements.

What is included in the performance audit report?

You receive a detailed PDF report with current metrics, identified bottlenecks ranked by impact, actionable recommendations with code examples, and an implementation priority matrix. I also include a before/after comparison of key metrics.

How long does the audit take?

A standard performance audit takes 3-5 business days. I analyze all key pages (homepage, product pages, checkout), run tests on multiple devices and network conditions, and prepare the full report with recommendations.

Do you also implement the fixes after the audit?

Yes. I offer a combined audit + implementation package where I identify the issues and fix them. This is the most efficient approach as I already understand your codebase from the audit phase. Implementation time varies from 1-4 weeks depending on the scope of improvements.

Let's work together

My colleagues are ready to help with your project. Send an inquiry to discuss the scope and availability.

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