BrisTechTonic is a Bristol SEO agency that helps UK businesses get found on Google, the local map pack and the AI assistants they now ask, like ChatGPT and Perplexity. Conversion rate optimisation is the ongoing work of getting more of your visitors to take an action you want, like enquiring or buying, on your existing website. It works through research, hunches and careful testing, where you show two versions of a page to real visitors and see which does better, rather than opinion or a full rebuild. It uses your visitor data to find where people give up, a testing programme to prove which changes help, and careful measurement so only genuine wins go live. We run it as a monthly programme judged on proven improvement, never on guessed best practice.
Conversion rate optimisation gets confused with two other things it is not. It is not a redesign, and it is not a designer's opinion about what looks better. It is a careful, ongoing loop: work out from real data where visitors are giving up, form a specific hunch about why, test a change against the current version with real visitors, and keep it only if the numbers prove it helped. The value is in the discipline, because most confident guesses about what will win more enquiries turn out, when tested, to do nothing or to hurt.
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That is why evidence comes first. Your visitor data tells you where in the steps to buy or enquire people leave; recordings of real visits and click-and-scroll maps often tell you why, showing the form box everyone gives up on, the button nobody scrolls down to, the reassurance that is missing at the moment of doubt. From that we build hunches worth testing, ranked by likely impact and how easy they are, rather than a wishlist of tweaks. A good programme spends as much effort deciding what not to test as what to test.
Testing itself has to be honest about the numbers. A test only means something with enough visitors and enough time for the result to be reliable, and lower-traffic sites simply cannot test every idea, which is a fact we will tell you rather than run flimsy tests that produce noise dressed up as insight. When a test cannot be run cleanly we say so and find another way, and when a test wins we make sure it did not do so by quietly costing page speed or rankings.
This is optimisation on the site you already have. If you are commissioning a new build and want it designed to convert from the first line of code, that is a different, upfront piece of work we cross-link below. The two fit together, a well-built site gives CRO more to work with, but they are not the same job and we keep them distinct so you are only paying for the one you need.
The traffic is the expensive part. Converting more of it is the cheap win.
These are industry figures, not our own results, and we do not invent numbers. You already paid to earn the visit. Converting a few more of them is usually cheaper than buying more. No outcome is ever guaranteed.
Conversion rate optimisation, broken down.
Analytics and behaviour research
Looking at where people leave the steps to buy or enquire, recordings of real visits, and click-and-scroll maps, to find where visitors actually give up and hesitate, so testing is aimed at real sticking points rather than guesses about them. This is where every credible programme starts.
Hypotheses and a test roadmap
An ordered list of changes worth testing, each with a clear hunch and expected impact, ranked so we run the tests most likely to matter first rather than whatever is easiest to build.
A/B and multivariate testing
Careful tests run on your real visitors, sized and judged on whether the result is reliable, so a change goes live only when the data shows it genuinely helped. Nothing goes live on a hunch, no calling tests early.
Conversion-focused design for new builds →
If you are building or rebuilding rather than improving, winning customers belongs in the design from the start. That is a separate, up-front piece of work, and it is where these ideas are built in rather than tested in later.
Speed and technical health
Page speed is itself something that affects how many visitors act, and the tools used to run tests can undermine it if handled badly. We keep your page speed and rankings intact while we test, and treat slow pages as a problem for enquiries in their own right.
When testing points to a rebuild →
Sometimes the data shows a page style is beyond tweaking and needs rebuilding. When it does we will say so honestly rather than test around the edges, and a redesign becomes the right next step.
Some of our recent work.
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What clients say about working with us.
“I've had the pleasure of working with Chris on several SEO projects for my websites in the health field. He was definitely been able to demystify things so that I felt able to make decisions with him and feel confident they were the right ones. For a non-techie, that is worth gold! I look forward to working with Chris again and warmly recommend him to anyone who - like me - is unsure about all things SEO.”
“I was recommended by my branding partner to use Chris and his team last year. I can’t recommend them highly enough. They are very responsive , easy to communicate with and great at translating techy stuff when needed. They are now an essential part of my business model”
“We've been working closely with Chris, Hannah and the team for over 12 months now. As a small company with ambitious growth plans, it was incredibly important that we made the right choice on who to trust with our SEO. 18 months later, we're totally thrilled with our experience so far and our growing online presence within our market. We'd happily recommend BTT and their services to other SMEs. Drop them an enquiry!”
Real people on your account, not a faceless agency.
You work directly with the senior people who do the work, a small Bristol team you will actually get to know, not a call centre or an account manager relaying messages.
Meet the team →






The way we run Conversion rate optimisation.
Free discovery call and scope
We review your visitor data, the steps people take to buy or enquire and where they currently drop out, find the biggest leaks and show you the headline opportunities before you commit to anything.
Research and instrument
We set up the visitor tracking, visit recordings and click-and-scroll maps needed to see behaviour clearly, and confirm the site is counting enquiries and sales accurately, because a testing programme is only as good as its measurement.
Build the hypothesis backlog
We turn the research into an ordered list of changes worth testing, each with a clear hunch and expected impact, so we always work on the tests most likely to move the numbers.
Test and validate
We run careful tests on real visitors, showing two versions of a page and sized and left running long enough for the result to be reliable, and keep only the versions the data proves helped.
Ship wins, protect the base
Proven wins are added cleanly to your site, checked so they do not cost speed or rankings, and the next round of hunches is lined up from what each test taught us.
Measure, report, compound
Monthly reporting tied to the share of visitors who act and the actions that matter to the business, with the plan re-ordered each month around what the tests are actually showing.
How do we approach Conversion rate optimisation?
Evidence before opinion
We start from what visitors actually do: your visitor data, where they drop out of the steps to buy or enquire, recordings of real visits, and maps showing where people click and how far they scroll. Where they hesitate, where they give up, what they never see. Opinion, including ours, is a hunch to test, not a reason to change something.
Test properly or not at all
A real test, where you show two versions of a page to real visitors, needs enough visitors, enough time and one clear hunch to mean anything. We work out honestly how much traffic a test needs, judge the result on the numbers rather than impatience, and are straight with you when your traffic cannot support a given test yet.
Optimise the site you have
This is ongoing work on your existing site, not a rebuild. We change one thing, measure it, and keep it only if it earns its place, so improvement builds up without the risk and cost of throwing out what already works.
Protect SEO and speed while testing
The tools used to run tests, and the extra code behind them, can slow a page or confuse Google if handled carelessly. We run tests so they do not hurt your page speed or your rankings, because winning more enquiries but losing visitors from Google is not a win.
Real people doing the work, and putting their name to it.
You deal with our small, experienced Bristol team directly, from the first call to every monthly report.
Meet the team →What Conversion rate optimisation puts on your desk.
Are we the right fit for you?
Thinking of switching from another agency?
Moving your Conversion rate optimisation to us is more straightforward than staying somewhere that is not working. You keep everything you already own, we pick up without a gap, and we can run the whole thing for you or work alongside your team and your developers, whatever suits.
A free look first
We review what your current agency has done, tell you straight what is worth keeping and where the quick wins are. No obligation to move.
You keep what's yours
Your site, content, Google Business Profile and analytics stay in your name. We work with what you already have; nothing is held hostage.
A clean handover
We map the work across, set a plain-English baseline in the first few weeks, and carry on from there. No starting from zero, no quiet ranking gap.
Three-month minimum, then rolling monthly on 30 days’ notice. No long lock-in, no exit fees.
Who does the work, and how?
BrisTechTonic is the trading name of Bryley Ltd. Your CRO programme is run by a small, experienced team with years between us between them, experimenting on your revenue. CRO is judgement under statistics: knowing which hypothesis is worth the traffic, when a test has actually reached significance and when a result is noise. That is not a routine task, and it is not guesswork dressed up as best practice. We open with a free discovery call because we would rather show you honestly where your site leaks than sell you a testing retainer you cannot yet support.
Experienced people, start to finish
The person who reads your data is the person who designs the tests and calls the results. No account manager passing results from a back office, and no tests run blind on your real visitors.
Statistical honesty
We work out honestly how much traffic a test needs, judge it on the numbers rather than impatience, and tell you plainly when your traffic cannot support a given test yet. We would rather run fewer, solid tests than a stream of flimsy ones.
Wins that do not cost you elsewhere
Winning more enquiries but quietly slowing the site or denting your rankings is not a win. We protect speed and your Google rankings while we test, and report against the enquiries and sales that matter, not numbers that look good but mean little.
Conversion rate optimisation: common questions.
What is conversion rate optimisation, and is it a redesign?
It is the ongoing work of getting more of your visitors to take an action you want on your existing site, using research and careful testing of two page versions against each other rather than a rebuild. It is deliberately not a redesign. Instead of changing everything on a hunch, it changes one thing at a time, tests it against the current version with real visitors, and keeps it only if the data proves it helped. That discipline is the whole point, because most confident guesses about what wins more customers turn out to be wrong when tested.
How is this different from conversion-focused design?
Conversion-focused design builds these ideas into a new site from the start, as an up-front project. This service is the ongoing testing and improving of a site that already exists. One designs to win customers before launch; the other proves and improves it after launch, with real data. They work well together, and if you are building rather than improving, the design service is the right starting point. We keep them separate so you only pay for the one you need.
How much traffic do I need for A/B testing to work?
Enough for a test's result to be reliable in a reasonable time, which depends on how many visitors currently act and the size of the change you are testing. Lower-traffic sites can still benefit, but through fewer, higher-impact tests and more research into why people behave as they do, rather than a constant stream of tests. We will tell you honestly what your traffic can and cannot support, rather than running flimsy tests that produce noise.
Will testing slow my site or hurt my SEO?
It should not, if it is done carefully, and making sure of that is part of the job. The tools used to run tests, and their extra code, can add weight or confuse Google when handled badly, so we set tests up to avoid hurting your page speed or rankings, and we check for it. Winning more enquiries but losing visitors from Google is not a win, so we treat protecting speed and your rankings as part of the work, not an afterthought.
How quickly will I see results from CRO?
The first research often turns up obvious sticking points within weeks, but reliable, tested wins take time because a test has to run long enough for the result to be trustworthy. This is a programme that builds up, not a one-off fix: each proven change adds a little, and each test teaches the next. A realistic view is steady, evidenced improvement over months, rather than a single dramatic jump anyone can promise up front.
How much does conversion rate optimisation cost?
Our work starts from £1,800 per month, with everything agreed before you commit rather than sold as a fixed package. The right figure depends on your traffic, how much research and tracking the site needs, and how many tests it can realistically support. We work it out against what your site can actually make use of after the discovery call, so you are not paying for more testing than your traffic can support.
Book the call, or see the evidence first
