Randy Wattilete
Randy Wattilete is a conversion rate optimization expert and founder based in the Netherlands. Over nearly a decade, he has run conversion and growth experiments for dozens of companies — from first-time founders running their first landing page test, to global brands with dedicated optimization teams.
Before building Kirro, Randy spent three years as Head of Growth at Off The Record, one of the Netherlands’ leading growth consultancies, where he designed and ran CRO programs for clients including Nestlé, felyx, Storytel, Steve Madden, and Shoeby. Working across that range of company sizes and industries gave him a clear view of why most A/B testing tools fail small teams: they’re priced and built for enterprise, not for the person wearing every hat who still needs conversion wins.
That frustration became Kirro, an A/B testing and CRO platform built specifically for founders and lean growth teams who need real results without enterprise complexity. In 2025, Randy also co-founded Olavi, a generative engine optimization (GEO) platform that helps marketing teams monitor and improve their brand visibility inside AI search engines like ChatGPT and Perplexity.
Randy holds a Master’s in Marketing Analytics (cum laude) from Tilburg University. He writes at Kirro on conversion optimization, A/B testing methodology, and what it means to build an experimentation culture without an enterprise budget.
Recent Posts
- 12 Jun, 2026
- Testing Methodology
A/B testing template: 5 ready-to-use templates for every stage of your test
- 12 Jun, 2026
- Competitor Comparisons
Adobe Target A/B testing: what it is, what it costs, and whether you need it
- 12 Jun, 2026
- CRO Tools & Software
Best CRO tools for ecommerce: 12 picks that actually move revenue
- 12 Jun, 2026
- Ecommerce CRO
Checkout optimization best practices: 9 design changes that actually move the needle
- 12 Jun, 2026
- Testing Methodology
Control group: what it is, why it matters, and how it works in any experiment
- 12 Jun, 2026
- Landing Pages & SEO
CRO keyword cannibalization: how to find it, fix it, and stop losing conversions
- 12 Jun, 2026
- Conversion Rate Benchmarks
CTR industry benchmarks: what's a good click-through rate in 2026?
- 12 Jun, 2026
- ecommerce-cro-guide
Ecommerce CRO audit: the step-by-step checklist to find what's costing you sales
- 12 Jun, 2026
- Testing Methodology
Multivariate testing vs A/B testing: which one should you actually use?
- 12 Jun, 2026
- Form Optimization
Form conversion rate: the data, the benchmarks, and what actually moves the number
- 12 Jun, 2026
- Form Optimization
Form design: 9 research-backed rules for forms that actually convert
- 12 Jun, 2026
- Testing Methodology
Frequentist vs Bayesian statistics: what's the difference and why it matters
- 12 Jun, 2026
- Competitor Comparisons
8 best FullStory alternatives in 2026 (honest picks by use case)
- 12 Jun, 2026
- Landing Pages & SEO
High converting Elementor landing page templates (with CRO annotations)
- 12 Jun, 2026
- Competitor Comparisons
Hotjar vs Mouseflow: which behavior analytics tool actually fits?
- 12 Jun, 2026
- Testing Methodology
Hypothesis generator: how to build A/B test hypotheses that actually win
- 12 Jun, 2026
- Competitor Comparisons
Kameleoon A/B testing: what it is, what it costs, and whether you need it
- 12 Jun, 2026
- Landing Pages & SEO
Landing page analyzer: how to audit any page (and what to fix first)
- 12 Jun, 2026
- Landing Pages & SEO
Landing page best practices: 10 rules backed by data (not opinions)
- 12 Jun, 2026
- Conversion Rate Benchmarks
Landing page conversion rate: benchmarks by industry and how to improve yours
- 12 Jun, 2026
- Form Optimization
Lead generation form: what to include, real examples, and the field-count myth
- 12 Jun, 2026
- Ecommerce CRO
Magento conversion rate optimization: the platform-specific guide for non-Shopify stores
- 12 Jun, 2026
- Competitor Comparisons
7 best Microsoft Clarity alternatives (and when to keep Clarity too)
- 12 Jun, 2026
- A/B Testing Tools & Software
The 7 best multivariate testing software tools in 2026
- 11 Jun, 2026
- Testing Methodology
A/B testing alternatives: 7 methods to try when split testing won't work
- 11 Jun, 2026
- Testing Methodology
A/B testing best practices that actually move the needle (backed by data)
- 11 Jun, 2026
- Testing Methodology
AA test: what it is, how to run one, and what to do when it fails
- 11 Jun, 2026
- A/B Testing Tools & Software
A/B testing agency: when you need one (and when a tool does the job)
- 11 Jun, 2026
- Testing Methodology
A/B testing metrics: the 4 types that decide if your test actually matters
- 11 Jun, 2026
- Testing Methodology
A/B testing for pricing: how to test price points without losing customers
- 11 Jun, 2026
- Testing Methodology
A/B testing in product management: what PMs actually need to know
- 11 Jun, 2026
- Testing Methodology
A/B testing UX: how designers use split testing to make better design decisions
- 11 Jun, 2026
- Testing Methodology
A/B testing vs split testing: what's actually different (and when it matters)
- 16 Mar, 2026
- CRO Strategy & Process
Social proof examples: 15 ways real businesses turn trust into conversions
- 15 Mar, 2026
- Conversion Funnels & Analytics
Conversion funnel optimization: a stage-by-stage playbook for more revenue
- 15 Mar, 2026
- Conversion Funnels & Analytics
Funnel analysis: find where you're losing customers (and figure out why)
- 15 Mar, 2026
- Conversion Funnels & Analytics
What is a good funnel conversion rate? Benchmarks by stage, model, and channel
- 15 Mar, 2026
- Landing Pages & SEO
High converting landing pages: what actually moves the needle (with data)
- 15 Mar, 2026
- Landing Pages & SEO
Landing page SEO: how to rank your landing pages (without killing conversions)
- 15 Mar, 2026
- Landing Pages & SEO
Landing page vs website: what's the difference and which do you need?
- 15 Mar, 2026
- Landing Pages & SEO
Lead generation landing page: the five elements that actually determine performance
- 15 Mar, 2026
- CRO Strategy & Process
Value proposition examples that actually explain why they work
- 14 Mar, 2026
- Testing Methodology
AI A/B testing: what's real, what's hype, and what actually helps
- 14 Mar, 2026
- CRO Services & Agencies
AI conversion rate optimization: what actually works, what doesn't, and where to start
- 14 Mar, 2026
- Conversion Rate Benchmarks
App store conversion rate: benchmarks by category for iOS and Google Play
- 14 Mar, 2026
- Conversion Rate Benchmarks
Click conversion rate: what it means, how it differs from CTR, and what to do about both
- 14 Mar, 2026
- Testing Methodology
Client-side vs server-side A/B testing: which one your business actually needs
- 14 Mar, 2026
- Conversion Rate Benchmarks
Cold calling conversion rate: what the data actually shows (not just '2%')
- 14 Mar, 2026
- Conversion Funnels & Analytics
Conversion funnel: what it is, how it works, and where your money leaks
- 14 Mar, 2026
- Conversion Funnels & Analytics
Conversion rate calculator for marketing and sales (with revenue impact mode)
- 14 Mar, 2026
- Conversion Funnels & Analytics
Conversion rate lead generation: formulas, benchmarks, and how to fix a leaky funnel
- 14 Mar, 2026
- Conversion Rate Benchmarks
Conversion rate metrics: the ones that matter (and the ones that mislead you)
- 14 Mar, 2026
- Testing Methodology
Cookieless A/B testing: what actually changed and what to do about it
- 14 Mar, 2026
- CRO Services & Agencies
CRO case studies: 12 real examples with actual numbers (and a trust rating for each)
- 14 Mar, 2026
- CRO Strategy & Process
The CRO process: five steps to turn more visitors into customers
- 14 Mar, 2026
- Testing Methodology
CUPED and variance reduction: run faster A/B tests with less traffic
- 14 Mar, 2026
- Conversion Rate Benchmarks
CVR conversion rate: what it means and why every platform calculates it differently
- 14 Mar, 2026
- Ecommerce CRO
Ecommerce conversion optimization: what it is, why it matters, and where to start
- 14 Mar, 2026
- Ecommerce CRO
Ecommerce CRO checklist: the page-by-page audit that actually moves revenue
- 14 Mar, 2026
- Conversion Rate Benchmarks
Facebook Ads conversion rate: 2026 benchmarks that actually reflect reality
- 14 Mar, 2026
- Testing Methodology
Feature flags vs A/B testing: what's the difference and which do you need?
- 14 Mar, 2026
- Conversion Rate Benchmarks
Free trial conversion rate: benchmarks, formulas, and how to improve yours
- 14 Mar, 2026
- Conversion Rate Benchmarks
Goal conversion rate: what it is, how to track it, and which goals actually matter
- 14 Mar, 2026
- CRO Tools & Software
7 best Hotjar alternatives in 2026 (and why people are switching)
- 14 Mar, 2026
- Conversion Funnels & Analytics
How to calculate conversion rate (and why one formula isn't enough)
- 14 Mar, 2026
- CRO Strategy & Process
How to increase conversion rate: 7 changes ranked by actual impact
- 14 Mar, 2026
- CRO Strategy & Process
How to optimize conversion rate: the 5 changes that actually move the needle
- 14 Mar, 2026
- Conversion Rate Benchmarks
Lead conversion rate: what it actually means, the formula, and benchmarks by industry
- 14 Mar, 2026
- Conversion Rate Benchmarks
Mobile app conversion rate: benchmarks for every stage of the funnel
- 14 Mar, 2026
- Testing Methodology
Multi-armed bandit testing: what it is, when it works, and when it backfires
- 14 Mar, 2026
- Testing Methodology
The null hypothesis in A/B testing: what it means and why most tests prove it right
- 14 Mar, 2026
- Ecommerce CRO
Product page optimization: a data-backed guide to ecommerce pages that convert
- 14 Mar, 2026
- Conversion Rate Benchmarks
SaaS conversion rate benchmarks (2026): what the data actually says
- 14 Mar, 2026
- CRO Services & Agencies
Shopify conversion rate optimization: a plan-by-plan guide to what you can actually change
- 14 Mar, 2026
- Platform-Specific Testing
Webflow A/B testing: how to run split tests on your Webflow site
- 14 Mar, 2026
- Conversion Rate Benchmarks
What is a good conversion rate? Benchmarks by industry, platform, and traffic source
- 13 Mar, 2026
- Platform-Specific Testing
Amazon A/B testing: how to split test listings (and what Amazon won't tell you)
- 13 Mar, 2026
- CRO Services & Agencies
App conversion rate optimization: the full-funnel guide most articles only half cover
- 13 Mar, 2026
- CRO Services & Agencies
B2B conversion rate optimization: the complete guide for 2026
- 13 Mar, 2026
- CRO Strategy & Process
Conversion optimization strategy: how to build a plan that actually gets approved
- 13 Mar, 2026
- CRO Strategy & Process
CRO best practices: which ones actually work (and which to stop following)
- 13 Mar, 2026
- CRO Fundamentals
CRO metrics: the KPIs that actually drive conversions (not just fill dashboards)
- 13 Mar, 2026
- CRO Services & Agencies
CRO services for local business: what actually works (and what's a waste)
- 13 Mar, 2026
- CRO Services & Agencies
Conversion rate optimization services: a buyer's guide for the rest of us
- 13 Mar, 2026
- CRO Fundamentals
CRO testing: the complete guide to tests that actually improve conversions
- 13 Mar, 2026
- CRO Strategy & Process
CRO training: what to learn, where to learn it, and what to skip
- 13 Mar, 2026
- CRO Strategy & Process
Digital CRO: what it means, where it happens, and how to start
- 13 Mar, 2026
- Conversion Funnels & Analytics
Ecommerce conversion rate in Google Analytics: how to find it, fix it, and actually use it
- 13 Mar, 2026
- Conversion Funnels & Analytics
GA4 conversion rate: how to find it, understand it, and actually use it
- 13 Mar, 2026
- Testing Methodology
How to design a marketing experiment (even if most of them fail)
- 13 Mar, 2026
- CRO Strategy & Process
Landing page optimization: a decision framework for pages that actually convert
- 13 Mar, 2026
- Platform-Specific Testing
Meta A/B testing: how to run Facebook and Instagram ad tests that actually work
- 13 Mar, 2026
- Testing Methodology
Minimum detectable effect in A/B testing: how to pick the right one for your business
- 13 Mar, 2026
- A/B Testing Tools & Software
Mobile app A/B testing: best tools and how to get started
- 13 Mar, 2026
- Testing Methodology
Statistical power and power analysis for A/B tests: the planning step most teams skip
- 13 Mar, 2026
- Testing Methodology
Type 1 vs type 2 errors in A/B testing: what they are and why they cost you money
- 13 Mar, 2026
- CRO Strategy & Process
UX conversion optimisation: where user experience and conversion goals collide
- 13 Mar, 2026
- CRO Strategy & Process
Website personalization: why most small teams aren't ready (and what to do instead)
- 12 Mar, 2026
- Testing Methodology
A/B test sample size formula: how to calculate it (with worked examples)
- 12 Mar, 2026
- A/B Testing Tools & Software
The best A/B testing software in 2026 (honest buyer's guide)
- 12 Mar, 2026
- Testing Methodology
A/B testing conversion rate: how to measure, track, and actually improve it
- 12 Mar, 2026
- Testing Methodology
Bayesian A/B testing: what it is, when it helps, and when it's overkill
- 12 Mar, 2026
- Testing Methodology
Landing page split testing: the full playbook from page selection to results
- 12 Mar, 2026
- Testing Methodology
Multivariate testing: when it works, when it doesn't, and what to do instead
- 12 Mar, 2026
- SEO A/B Testing
SEO A/B testing: what it is, why most tests fail, and what small sites can do instead
- 12 Mar, 2026
- Testing Methodology
Split testing meaning: what it is, the 3 types, and when each one matters
- 12 Mar, 2026
- A/B Testing Tools & Software
The best split testing software in 2026 (and what split testing actually means)
- 11 Mar, 2026
- CRO Tools & Software