Performance Audit: find out what slow pages cost you
Know exactly what to fix - before you fix anything
You suspect slow pages are hurting conversions. But you don't know exactly what's causing it, which segments are affected, or how much it costs you.
We find out. Two weeks of real-user monitoring gives you a business case, a competitive benchmark, and a clear list of what to fix - in order of impact.
Our audit revealed a third-party consent script was delaying product page rendering by over 2 seconds on mobile — across all three of a UK fashion retailer's brands. It wasn't in any of their existing reports.
From €5,000 - includes real-user monitoring setup, business case, competitive benchmark, and findings briefing.
What you get
Week 1: Setup
We install a lightweight monitoring tag on your critical pages - homepage, product listings, product detail, checkout. No codebase access needed. Data starts collecting immediately.
Week 1-2: Data collection
Real visitors on real devices. Two weeks of field data segmented by device type, location, page type, and customer journey stage. We benchmark your performance against direct competitors.
Week 3: Findings
We analyse the data and produce your business case: how performance correlates with lost conversions, where the biggest gaps are, and how you compare to competitors. Numbers your stakeholders understand.
Week 3-4: Briefing session
A working session with your team. We walk through the findings, answer questions, and align on which problems matter most. You leave knowing exactly where to focus.
What you walk away with
Performance business case
Real-user data showing how slow pages affect your conversions. Numbers your board understands. Justification for the next step.
Competitive benchmark
How you compare to direct competitors on real-user metrics. Where you're ahead. Where you're losing ground.
Prioritised issues list
What's causing problems, in order of conversion impact. Not a Lighthouse report - findings from real visitors on your site.
Findings briefing
A working session with your team to walk through the data, answer questions, and agree on priorities.
Investment
€5,000 - €7,500 for the full engagement. Includes monitoring setup, two weeks of real-user data collection, business case, competitive benchmark, prioritised issues list, and findings briefing.
The exact investment depends on how many page types we monitor and the complexity of your stack. We'll give you a clear quote after an initial conversation.
Ready to find out what's slowing you down?
Four weeks from now, you'll know exactly what's costing you conversions, how much it matters, and where to focus. No more guessing.
Not sure if you need this?
Start with a free benchmark. See how your site compares to competitors and get your UX Score. Takes 30 seconds, no commitment.
If the score reveals gaps you didn't know about, we should talk.
Why not just ask your agency?
Your agency audits based on what they can see. Lighthouse scores, quick wins, recommendations scoped to what they know how to fix. That's useful, but it misses the issues that only appear in real-user data: the checkout flow that breaks on a specific network, the filter interaction that's slow for mobile users in one region, the third-party script that blocks a segment you didn't know was struggling.
An audit built on real-user monitoring finds what's actually costing you money, not just what scores badly in a lab test.
FAQ
What do we get at the end?
A business case built on real-user data showing exactly how performance affects your conversions. A competitive benchmark. A prioritised list of what's causing problems and the estimated impact of fixing each one. Plus a findings briefing with your team. No roadmap or user stories - those come in the sprint.
How much does it cost?
A typical audit runs €5,000 - €7,500. The exact investment depends on how many page types we measure and the complexity of your stack. We'll give you a clear quote after an initial conversation.
Do you need access to our codebase?
No. We install a lightweight monitoring tag on your site to collect real-user data. We analyse your site as customers experience it. Your code stays with your team.
What if we already have monitoring?
Most monitoring tools show averages. We segment by device, location, page type, and customer journey stage. You'll see patterns your current tools don't show. We can also work with data from tools you already have.
What comes after the audit?
Most clients move straight to a Performance Sprint. You have the data, we have the priorities - the sprint is where we fix them. You can also take the findings to your own team to implement. Either way, you leave the audit knowing exactly what to work on.
How is this different from a Lighthouse report?
Lighthouse tests one page in ideal conditions. We measure what real visitors on real devices actually experience - which pages are slow, which customer segments suffer most, and where the revenue impact is largest. Issues that only appear in the field, not the lab, are often the most valuable to find.
See it in practice
Want to understand what an audit actually looks like in practice? Read how a UK fashion retailer discovered a third-party script was costing them 2 seconds on every product page — something their existing monitoring had never surfaced.
What comes next
Most clients move straight from the audit to a Performance Sprint. You have the real-user data. We have the priorities. The sprint is where we fix them - in two weeks, working alongside your team.