What a Conversion Rate Optimisation Agency in London Should Actually Deliver

"Conversion rate optimisation" gets used loosely. Some agencies mean a single round of A/B tests; others mean a full research-to-execution process. Here's what that process looks like when it's done properly, and what BSS Commerce delivers on every engagement.

7 audit deliverables 30/60/90-day roadmap Data-driven, zero guesswork
Find My Conversion Leaks

Three Layers Every Proper CRO Engagement Covers

Business context

Understanding what "conversion" means for your specific business before any data gets pulled.

Data & behaviour

Funnel analytics, heatmaps, and session recordings to see exactly where and why shoppers leave.

UX evaluation

A page-by-page review of copy, layout, trust signals, and checkout flow, cross-referenced against the data.

The Deliverables That Separate a Real Agency From a Freelancer

A one-off freelancer typically hands over a slide deck. A full agency hands over an action kit.

Executive Summary + Deep-Dive Report

The big picture for decision-makers, backed by a full breakdown of funnel data and shopper behaviour for the team doing the work.

Solutions List with Visual Mockups

8–18 conversion fixes your developers can implement without running a single test first, each paired with a mockup.

A/B Test Hypothesis Backlog

A structured, prioritised list so your team always knows what to test next and how to measure it.

Findings Walkthrough Call

A live 60–90 minute session where the whole team gets to ask questions before work starts.

Case Study: A Premium Guitar Brand

A Shopify store selling premium guitars across the UK and internationally had strong organic traffic but a revenue figure that didn't match it. The audit found that more than 96% of product viewers left without adding to cart, mobile sessions made up the majority of traffic yet converted worse than desktop, and only 1 in 10 shoppers who started checkout actually completed it – well under the 40–55% industry benchmark.

"Thank you for sharing such a comprehensive audit. There are some excellent findings in here, and we really appreciate the level of detail you've gone into."eCommerce Manager, Premium Guitar Brand (UK)

FAQs

What's the difference between a CRO freelancer and a full agency?

An agency brings a structured, repeatable process, a full deliverable set, and the ability to hand off implementation-ready fixes rather than just recommendations.

Do you only run tests, or also fix the underlying UX?

Both. Every audit includes a UX evaluation alongside the data analysis, so fixes address root causes, not just symptoms.

How long does an engagement take?

The audit itself typically runs 3–6 weeks; ongoing optimisation through our retainer continues in monthly phases after that.

See How the Full Market Compares

For a broader look at how different conversion rate optimisation providers in London position themselves, see our full comparison.

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