Slow sites lose customers. Every second of delay increases bounce rates and kills conversions. But “slow” isn’t useful feedback. You need specifics: which pages, which metrics, which bottlenecks. A performance audit gives you those answers.
Speed affects everything. User experience, conversions, search rankings. The data is clear.
A fast site feels professional. Users trust it more. They browse longer, click more, and convert better. Performance isn’t just a technical metric. It’s part of your brand experience.
We run comprehensive performance testing using sitespeed.io, measuring everything that affects user experience.
| Metric | What It Measures | Good Score |
|---|---|---|
| LCP (Largest Contentful Paint) | How fast main content loads | Under 2.5s |
| FID (First Input Delay) | How fast page responds to interaction | Under 100ms |
| CLS (Cumulative Layout Shift) | How much content shifts during load | Under 0.1 |
LCP (largest contentful paint) measures when the main content becomes visible. If your hero image or headline takes 4 seconds to appear, users perceive the site as slow regardless of what happens after.
FID (first input delay) measures responsiveness. When a user clicks a button, how long before something happens? Heavy JavaScript can block the main thread and make your site feel unresponsive.
CLS (cumulative layout shift) measures visual stability. When ads load late or images resize, content jumps around. Users click the wrong thing. Forms shift. It’s frustrating and unprofessional.
Beyond Core Web Vitals, we measure:
We identify up to 20 key pages to audit. We prioritize high-traffic pages, landing pages, and pages critical to conversions. You review our selection and can suggest changes before we begin.
We run sitespeed.io against every selected page in a standard testing environment. This gives consistent, reproducible results. If you need throttled testing (simulating slower connections), we can enable that.
We compile findings into a detailed report with:
We don’t include competitor benchmarks. The report focuses on your site’s performance and what can be improved.
You get a 30-minute call where we:
Performance problems usually fall into a few categories:
The audit identifies which of these affect your site and how severely.
Why no competitor comparison? We focus entirely on your site. Knowing a competitor is faster doesn’t tell you how to improve. The report identifies your specific bottlenecks and optimization opportunities.
€99
Timeline: 2-3 days
Common questions about performance audits.
PageSpeed Insights gives you a quick score for one page at a time. Our audit tests up to 20 pages systematically, with detailed metrics, identifies patterns across your site, and includes a walkthrough to explain what matters most.
The audit measures performance metrics that affect both desktop and mobile. We test in a standard environment. If you want specific mobile throttling (simulating 3G or slow 4G connections), we can enable that.
The audit will reveal that. Slow server response time (Time to First Byte) shows up clearly in the metrics. If hosting is the bottleneck, we’ll identify it and discuss options.
We look at your site structure and focus on:
You review our selection before we start and can request changes.
You decide next steps:
We’re happy to quote optimization work separately.
Core Web Vitals are a Google ranking factor. Improving them can help SEO, especially if you’re currently failing thresholds. But performance is one of many ranking factors. Don’t expect dramatic ranking changes from performance alone.
Lab data comes from controlled testing environments (like our audit). Field data comes from real users via Chrome User Experience Report. Lab data is consistent and reproducible. Field data reflects actual user experience but varies based on devices and connections. Our audit provides lab data. Google Search Console shows your field data.
We recommend auditing after major site changes, redesigns, or when adding new functionality. For sites with active development, quarterly audits help catch performance regressions before they impact users. If you’re seeing conversion drops or bounce rate increases, an audit can identify whether performance is the cause.
Yes. Third-party scripts (analytics, chat widgets, ad networks, social buttons) are often the biggest performance killers. They run on your page but you don’t control them. They can block rendering, consume bandwidth, and slow everything down. The audit identifies which third-party resources are hurting performance.
Want the complete picture? See Combined Audit (€150) for performance and accessibility together.