Experiment log
SampleTest 7 · called at day 34Senior strategist
Result
- Variant B +11.4% to lead submit
- Reached the agreed sample, not stopped early
- Shipped, and the baseline moved with it
Next
- Same hypothesis, applied to the quote step
We will tell you when you do not have the traffic to test
Conversion work that can survive being checked
Experiments called at 95%, losers logged beside the winners, and an honest answer on whether your volume supports testing at all. The variants are built by the people who form the hypothesis.
5.0 from 60 reviewed projects
A lot of moving parts, kept organized from start to finish. Clear communication, reliable technical direction, and every deadline met without delays.
Brands across the industries we serve
60
Client reviews published with real names
1,000
US markets with their own measured page one
76
Entities in our public knowledge graph
Since 2019
Building search programmes
What is CRO at REO Rank?
Turn your existing traffic into more customers with data-backed CRO strategies that optimize every step of the user journey.
- 4+ specialised cro services included
- KPI-tied retainers — no juniors learning on your dime
- Pricing range: $1,000 one-time → From $5,000 /month
- Free 30-min strategy call · senior team only
How we work
Why teams bring us in for CRO
Anyone can redesign a page and show you a chart that went up afterwards. What makes this a discipline rather than a taste argument is the bar for calling something true — and what happens to the two tests in three that do not clear it.
- What counts as a result
- Statistical significance at 95%, reached at a sample size agreed before the test starts. We do not stop a test early because it is winning, which is the single most common way agencies manufacture a lift.
- What happens when a test loses
- It goes in the same log as the winners, with the hypothesis that turned out to be wrong. Most tests do not win. An agency showing you only winners is showing you a subset and calling it a record.
- Who approves the hypothesis
- You do, before the variant is built. No test goes live on a guess we did not show you first, and the reasoning is written down rather than asserted on a call.
- When we will tell you not to test
- When your traffic cannot support it. The planner above is the same arithmetic we run internally — if it says a quarter, we will say so in the audit rather than sell you a retainer that cannot produce an answer.
- What you are not locked into
- We work in whichever testing platform you already have. There is no proprietary tool you lose access to when this ends — the variant code, the results and the instrumentation live in your stack. Who builds the variants
- What it costs
- Published, not quoted on request. A funnel audit with a 90-day experiment roadmap from $1,000; ongoing testing from $2,500 a month. Full pricing
Where to start
Three ways a conversion problem shows up
None of them is “our conversion rate is low”. That is the symptom people arrive with; these are the things actually happening underneath it.
Everyone has a theory and nobody has evidence
The homepage has been redesigned twice on opinion. Each version felt better and none of them was measured, so nobody can say which one was right — or whether either was.
Start testing properlyPeople reach the form and leave
They got all the way there, which means the offer worked. Then something in the last screen — a field, an error, a price appearing late — sent them back, and analytics records it as a bounce.
Start by watching sessionsWhat's Included
The CRO engagements we ship
Each service is tailored to your business goals and delivered by dedicated specialists. Click any service to learn more.
Before anyone sells you a test
An A/B test is an instrument and yours may not have enough light
Below a certain amount of traffic, a test cannot return an answer — not a weak answer, no answer. Most agencies will sell you one anyway and call a winner at week three. Put your own numbers in and see what the arithmetic actually says.
8weeks to a decision
- Visitors needed, both arms
- 106,416
- Decisions you could reach in a year
- 6
Testing works, but slowly. At this pace every experiment has to earn its slot, so the roadmap matters more than the tooling. We would start with an audit to make sure the first few are the right ones. Start with a CRO audit
Two-proportion sample size at 95% two-sided significance and 80% power, one variant against control, with a two-week minimum because weekday and weekend traffic convert differently. It tells you how long a test needs to answer — never whether your variant will win. Nobody can tell you that in advance, and a page that offers to is selling you something.
What you can test
Your stack decides what is testable before your budget does
Half of a conversion roadmap is ruled out by the platform before anyone writes a hypothesis. These are the stacks we work in, and what each one will and will not let you change.
Hosted platforms
Fast to test on the pages you own, and hard-walled on the ones you do not.
- ShopifyPlatform
Product and collection pages test freely. Checkout does not — outside Plus you are optimising everything up to the cart and nothing after it, which is where a lot of the leak actually is.
- WordPressPlatform
The most testable of the hosted stacks and the most fragile. Plugin-rendered markup shifts under a client-side test, which is how variants end up flickering or silently not rendering at all.
- WebflowPlatform
Clean markup, so client-side tests apply cleanly. No server layer, so anything needing a decision before paint — personalisation, segment routing — is off the table.
- HubSpot CMSPlatform
Forms are the conversion and HubSpot owns them, so most of the meaningful tests are inside the form module rather than around it.
Code you control
Everything is testable, including the parts most platforms hide — which raises the ceiling and the cost of getting it wrong.
- Next.jsStack
Server-rendered variants with no flicker and no layout shift, which also means the test is not quietly costing you the CLS you optimised for.
- Custom buildStack
Feature-flagged at the server, so a variant can change pricing logic, routing or the order of a multi-step flow — not just what the page looks like.
How it runs
One full cycle, then it repeats from a new baseline
Instrumentation first — you cannot test what you are not measuring correctly. The first validated winner lands in the 30–45 day window on high-traffic pages, which is what the FAQ commits to; below that traffic the planner above tells you the honest number for your own funnel.
What happens at each stage- Week 1Analytics instrumented and trusted
- Week 1–2Sessions watched, not summarised
- Weeks 2–3Every drop-off priced by revenue
- Weeks 3–4Roadmap you sign off on
- Week 4First hypothesis, first variant built
- Weeks 5–8Test runs to its sample size
- Weeks 6–9Called at 95% — win or lose, logged
- Day 90 onWinner shipped, cycle restarts higher
01
The math nobody explains
Why underpowered tests are worse than no test at all
Most reported CRO wins are noise dressed up as insight. When a test lacks the sample size to detect the effect you are hoping for, calling a winner early gives you a coin flip with a confident-sounding percentage attached. We calculate minimum detectable effect and required sample size before a test goes live, then hold the line until it resolves, so the decisions you ship are ones the data actually supports.
- Sample size and power are agreed before the test starts, not after
- We guard against peeking, which inflates false positives dramatically
- Sample-ratio mismatch checks catch broken randomization early
- Losers are reported openly because they still sharpen your next hypothesis
02
Compounding, not one-off
How small, validated lifts turn into a step-change in revenue
A single 8% lift is a rounding error. Twelve validated 8% lifts, shipped in sequence and left to stack on the same traffic, are a different business. The value of CRO is not any one experiment but the velocity and discipline of the flywheel: instrument, diagnose, test, ship, re-measure, repeat. Teams that keep the cadence for two to three quarters see revenue per session move in ways a single redesign never delivers.
- Winners compound on the same traffic you are already paying for
- A steady test cadence beats occasional big-bang redesigns
- Every shipped change is re-measured live against its forecast
- Learnings feed the roadmap so hypotheses get sharper over time
From our clients
What clients say about our CRO work
Left on Upwork, on Fiverr, or sent to us directly. Every name and face below is a real person you could look up.
5average across 60 reviews left on Upwork, Fiverr and directly with us
They rebuilt our city pages and fixed the local foundation properly. We're now showing up in the map pack across every territory we serve, and the phone actually rings because of it.
The on-page work was meticulous — they made the changes without disrupting the site and explained the reasoning behind each one. Our performance climbed steadily afterward.
A lot of moving parts, kept organized from start to finish. Clear communication, reliable technical direction, and every deadline met without delays.
They identified and resolved performance issues that had been quietly hurting us. Technical fixes were explained in plain language and the whole process was efficient.
Structured, reliable, and clear. They explained the process, responded quickly to questions, and completed everything according to plan.
Well-researched, well-structured content that aligned perfectly with our goals. Organized, easy to collaborate with, and consistently on time.
Before you commit
Whether conversion is where your money is or whether it is traffic
CRO multiplies whatever is already arriving. If not much is arriving, a better rate on a small number is still a small number — these settle which end to spend on.
- SEOPPC
Which channel fills the funnel you are about to optimise, and how fast.
- In-houseagency
Testing needs a designer, a front-end build and someone who can read a result. The real cost stack of covering all three.
- Custom developmentwebsite builders
The ceiling your platform puts on what you can ever test.
The words these decisions turn on
FAQs
Questions buyers ask before signing
Quick answers to the things buyers always check first.
How is CRO priced?
A one-time CRO audit is $1,000 and delivers a ranked list of conversion leaks and a 90-day experiment roadmap. Ongoing Growth retainers start at $2,500/month and include up to four live A/B or multivariate tests per month, variant build, analysis and weekly reporting. Dominance programs with higher test velocity start at $5,000/month.
How much traffic do I need for CRO testing to work?
A/B testing needs roughly 1,000 conversions per month across the funnel to reach statistical significance at a reasonable pace. Below that, we lean on qualitative methods — session replay, heatmaps and user interviews — to drive change without waiting on statistics. We will tell you honestly in the audit which approach fits your current volume.
How long before I see a lift in conversions?
Most accounts see the first validated winner inside 30–45 days on high-traffic pages, since those reach significance fastest. Compounding lift across the full funnel typically lands in the 90–180 day window. Lower-traffic sites take longer because tests need adequate sample size before we call a winner.
What exactly is included in a CRO retainer each month?
You get a senior conversion strategist, a prioritized experiment backlog, design and front-end build of each variant, statistical analysis, a documented learning log and a shared live dashboard. No test goes live without your sign-off on the hypothesis. Growth tier includes up to four live tests per month.
Do you run A/B tests only, or other types too?
We run A/B tests, multivariate tests, split-URL tests and, at the Dominance tier, server-side tests for personalization and segment-level optimization. Method is chosen by what the data suggests, not by what is easiest to set up. We document losing tests with the same transparency as winners so the learnings compound.
What tools do you use for testing and analytics?
We work with whichever testing platform you already have — VWO, Optimizely, Convert or Google Optimize alternatives — or recommend one suited to your stack and budget. For analytics we use GA4 with server-side events, and for qualitative data we use Hotjar, Microsoft Clarity or FullStory. We never lock you into a tool that creates dependency on us.
How do you identify what to test first?
We instrument GA4 and session recordings in week one to map every drop-off point across the funnel by revenue impact. Each leak becomes a testable hypothesis scored on the PIE framework — potential, importance and ease. You approve the 90-day experiment roadmap before any variant is built, so priorities are agreed rather than assumed.
Do you guarantee a conversion rate improvement?
No credible CRO firm can guarantee a specific lift percentage before seeing your data — traffic quality, offer and pricing all matter too. What we guarantee is the process: statistically rigorous tests called at 95% confidence, transparent reporting on wins and losses, and KPI-tied retainer terms so our fee adjusts if agreed targets are missed.
What happens to the winning variants at the end of a test?
Validated winners are handed off to your development team or, if we built them, shipped directly to production. They are documented in your learning log with the evidence that justified the decision. Wins compound because each test cycle starts from the new baseline rather than repeating ground already covered.
Will CRO work conflict with our SEO or paid media programs?
Done properly, it reinforces both. Better landing page conversion rates lower your effective cost per acquisition on paid media. Better on-page signals — lower bounce, longer dwell — feed back into SEO quality signals. We coordinate with your SEO and paid media teams so tests are scheduled around major traffic changes that could invalidate results.
What do we own at the end of the engagement?
Everything — the variant code, the test results, the learning log and the analytics instrumentation. There is no proprietary testing platform you lose access to when we stop working together. The data and the decisions stay in your GA4 and your codebase.
Still have questions? Talk to a specialist
Start here
Tell us where people are dropping and we will tell you what we would test
Send the flow you care about and roughly what it does in a month. You will get back the two or three things we would look at first, whether your volume can support a test at all, and what we would do instead if it cannot.
- A reply within one business day, from a person
- A straight answer on whether you have the traffic to test
- No call required to get one
Would rather just email? hello@reorank.com
The team
Who builds the variant
A test is not a document — it is production code on your live site, seen by real customers. These two write it, which is why there is no handoff between the person who forms the hypothesis and the person who builds it.
Nimra Jabbar
Front-End Developer & SEO Specialist
Builds the variants and the instrumentation behind them. A test that shifts layout or delays paint has changed more than the thing you meant to change — she is the reason ours do not.
Abdur Rahman Shah
Web & SaaS Engineer · DevOps
Handles the server side: feature flags, split-URL routing and the tests that have to be decided before the page paints rather than patched afterwards.
Free site audit · results in 60 seconds
See what the funnel is losing before you test anything.
Drop your URL and we will walk the flow ourselves. You get the drop-off points we can actually see, and an honest read on whether you have the volume to run a test at all.