0115 6777 917
0115 6777 917
UK Conversion Rate Optimisation Agency
Your traffic isn't the problem. Your conversion rate is.
Credo combines user psychology, behavioural data and structured testing to turn more of your existing visitors into customers, without spending another penny on ads.
4
continents we've worked across
100+
sites we've worked on
6
software partnerships
Test result Collection page · Add to cart
A · Control
No "Add to cart" button on collection pages, so shoppers had to open each product to add it, making it harder to compare options.
B · Credo
Added an "Add to cart" button directly on collection pages, so shoppers could compare made-to-order and ready-to-ship options side by side.
+29.6%add to carts
+51.4%conversion rate
+8.2%AOV uplift
+62.7%revenue per visitor
Official partners 
Trusted by
The approach
The approach to conversion rate optimisation that's delivered results
We combine behavioural data, user psychology and structured testing to understand why visitors don't convert, and to check that a change actually works before we call it a win.
01. Behavioural data
Analytics & behavioural tracking
Analytics and behavioural tracking identify your core user flows, the exact pages where you stand to gain or lose the most.
02. User psychology
Why people hesitate
Decades of research into what makes people trust, doubt, or abandon a page, applied to your specific audience.
03. Structured testing
Prove it, don't guess it
We test, so we can back up our recommendations with real world data, not opinion.
Ongoing CRO
Where consistent testing turns into consistent revenue
We build a testing roadmap, run structured A/B tests every month, and keep compounding wins over time.
1
Build the testing roadmap
Every hypothesis is prioritised by potential impact and effort, so we always test the highest-value idea next.
2
Run the A/B test
Live variants are tested against your real traffic until we reach a clear winner.
3
Measure & report
Monthly reporting shows exactly what won, what didn't, and what we learned either way.
4
Roll out & go again
Winning variants get implemented permanently, and the next test on the roadmap begins.
This is the loop behind results like the Mellow Diamond test, with a real, measured lift rather than a guess.
Ongoing CRO & Testing
from £2,500/month
Rolling monthly partnerships available
- Continuous A/B testing roadmap
- Dedicated CRO strategist on your account
- Monthly performance reporting & reviews
- Ongoing analytics and user behaviour tracking
- Design & dev support to build and ship tests
CRO audits
Prefer to start with a one-off review?
An audit is a great way to see the opportunities before committing to ongoing testing. Every audit, whether mini or full, gets the same level of strategic thinking and user-focused recommendation.
Mini Audit
A focused, high-impact review of your key pages.
from £1,495
Typically delivered within 2–3 weeks
- Heuristic evaluation by a CRO expert
- Suggestions based on psychology & best practice
- Most impactful opportunities identified
- Heatmap analysis, where data is available
Full CRO Audit
Deep, data-led diagnostics using analytics, heatmap analysis and behavioural analysis.
£2,500 – £5,000
Scoped to the size & complexity of your site
- Everything in the Mini Audit
- Full analytics analysis
- A comprehensive report, often 50+ pages
- A follow-up call to talk through the findings
The auditing process
01
Tell us about your site
A short call or brief so we understand your goals, audience and where you suspect friction lives.
02
We analyse the evidence
Analytics, heatmaps and heuristic review, cross-referenced against user psychology and best practice.
03
You get a prioritised report
Written so anyone in your company can understand it: what's wrong, why it matters, and what to do first.
04
Implement, with or without us
Roll the changes out yourselves, or work with us to test and keep improving over time.
Who we work with
CRO is for every website, but we know some better than most
We're particularly experienced in e-commerce (and Shopify, as a Shoplift partner), but the principles of conversion carry across every sector we work in.
DIY, home improvement, food and drink, fashion, homeware, electronics and personal care, all sizes, all bespoke.
Hobby, air travel, education, hospitality, financial services, home ownership services and personal care.
Healthcare, data security, internet anonymity, networking: helping users feel informed and streamlining the path to subscribe.
Agencies looking to secure more clients, affiliate sites, and buyer-seller platforms. If your sector isn't listed, get in touch, as we firmly believe CRO is for every website.
Real results
Some of the results we've delivered
A sample of confirmed outcomes from Credo case studies.
213.21%
Boost in advanced search engagement for an e-commerce site
1,316%
Increase in win-back revenue from an abandoned basket sequence
45%
Uplift in conversion rate within two weeks, from a set of quick fix changes
41%
Increase in profit per user from finding the optimal free-delivery threshold
56%
Improvement in on-site search conversion rate
300%
Increase in sales from optimising a single key landing page
In their words
What it's like to work with Credo
★★★★★
Credo performed a comprehensive audit of our website including branding, layouts, structure, content, calls to action and underlying data. They created a detailed report of their findings with clear, actionable recommendations.
Richard BensonCEO, Releasd★★★★★
Charlotte from Credo brought a thoughtful and strategic perspective to our website revamp, always grounding her recommendations in data and user behaviour. Charlotte took the time to understand our brand, our goals, and our audience, working closely with us to explain each change and its measurable outcomes.
Chris DieguezMarketing / Creative Director, Participant Capital★★★★★
The process felt highly collaborative. Charlotte took the time to understand our brand, our goals and our audience, and worked closely with us to explain each change and its measurable outcome.
Hamiz ShahFounder, ViteraAbout Credo
Credo is Latin for "believe."
We picked the name because we believe in the power of CRO to transform a business: believe in more, as we say. Credo is a UK-based, specialist conversion rate optimisation agency, one of the few that focuses exclusively on increasing website profitability.
We're a small but mighty team of designers, developers and copywriters, delivering results through a framework that combines user behaviour tracking, analytics data and user psychology. Though based in the UK, we work internationally across four continents, keeping things moving through fast, async communication.
When your company does well, so do you, and helping business owners, directors and managers get there is what we do.
The team
Robert
Founding Director
Charlotte
Head of Operations
Alice
Client Relations
FAQ
Common questions
Free mini landing page audits, Mini CRO Audits, Full CRO Audits, ongoing CRO & A/B testing, and moderated one-to-one user research. All of it is focused on improving clarity, reducing friction, increasing trust, and converting more of your existing visitors.
Mini Audits start from £1,495. Full Audits typically range from £2,500–£5,000 depending on scope. Ongoing CRO and testing starts from £2,500/month. Every project is scoped and priced clearly before we start.
Clarity, UX and friction fixes can show impact quickly. Testing and larger structural changes take longer, because you need enough data to make decisions based on evidence rather than guesses. Think quick wins plus compounding gains, not a one-week growth hack.
We combine user psychology, behavioural data and structured testing, so recommendations are backed by evidence rather than opinion. Our job is helping you achieve the growth you desire.
Most likely, yes. We've worked across e-commerce, SaaS, lead generation and subscription businesses. The principles of conversion (understanding users, reducing friction, making the value clear) stay the same.
You'll get the audit itself, with all of our suggestions laid out clearly. From there you can implement the changes with your own team, or work with us to roll them out, test them, and keep improving performance over time.
Get in touch
Get your free 30-minute CRO consultation
Honest advice on whether CRO is right for your organisation, a chat with a CRO expert, and a clear quote. No pressure.
Phone0115 6777 917
BasedUnited Kingdom, working across 4 continents