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Discover what makes us different
Our average client sees a 35% lift in conversion rate across 150+ CRO projects.
500+ tests run across landing pages, checkouts and lead capture forms.
Every change is backed by analytics, heatmaps and real session data.
Certified VWO partners running enterprise-grade experimentation programmes.
Here's what sets us apart from the competition
Find answers to common questions
Prebo integrates CRO work with GA4, Google Tag Manager, server-side tracking, and common ecommerce platforms like Shopify and WordPress to ensure accurate event capture and attribution. We also set up ETL or data-layer solutions where needed so test results feed into a single source of truth for decision making.
Common experiments include A/B tests, multivariate tests, funnel experiments, UX and checkout performance optimizations, and technical fixes that reduce friction. Test duration depends on traffic volume and required statistical power but typically ranges from several weeks to a few months per experiment cycle.
We prioritise revenue-per-visitor, conversion rate, average order value, customer acquisition cost (CAC), lifetime value (LTV), and marketing efficiency ratio (MER), alongside statistical significance for experiments. Clean attribution and centralized data pipelines ensure those metrics reflect true business impact rather than platform-reported figures.
CRO is designed to improve conversion efficiency and attribution accuracy, which can increase revenue and profitability when combined with product-market fit and adequate traffic. Outcomes vary by business and depend on test quality, funnel issues identified, and downstream economics, so results are not assured and are measured against revenue-focused KPIs rather than vanity metrics.
CRO is the systematic process of improving a website or funnel to increase revenue per visitor. Prebo Digital uses a technical-first, analytics-driven approach with hypothesis-driven experiments, server-side tracking, and funnel-level optimization focused on measurable revenue outcomes.
In This Article
Revenue-first optimization
Accurate attribution
Test and prioritise
Website optimization directly influences the core levers of revenue: conversion rate, average order value (AOV), and lifetime value (LTV). For US-based Shopify and WooCommerce stores, even small improvements in site speed, funnel clarity, or tracking accuracy can translate to meaningful lifts in monthly revenue. This guide explains how website optimization impacts online sales across the funnel and provides concrete examples you can apply to your store or SaaS funnel.
| Event | Client-side | Server-side |
|---|---|---|
| Page view | Browser pixel | Server event with user_id |
| Add to cart | JS event | Webhook + deduplication |
| Purchase | Pixel conversion | Server-side purchase with order_id |
This hybrid approach reduces attribution gaps from ad-blockers and browser restrictions and improves ROAS clarity. For a technical-first implementation example, see our services overview where tracking and analytics are described as core deliverables.
Imagine a Shopify store with 50,000 monthly sessions, 1.5% conversion rate, and $80 AOV. Monthly revenue: 50,000 × 0.015 × $80 = $60,000. If site speed and checkout optimization raise conversion rate to 1.8% (a realistic 0.3 percentage-point improvement), revenue becomes 50,000 × 0.018 × $80 = $72,000 - an increase of $12,000/month or $144,000/year (estimates for the United States context).
Small percentage improvements compound: speed optimization often reduces bounce and increases sessions that convert, while better attribution reassigns credit to the right channel, improving budget decisions. Learn how this structured approach aligns with our agency methodology on the Prebo Digital homepage.
Below are focused improvements that directly impact online sales, with practical actions and examples tailored to US platforms like Shopify, Stripe, and common ad channels (Google Ads, Meta, TikTok).
Improve LCP and reduce JS payloads. Prioritise critical CSS, lazy-load nonessential assets, and use a CDN. For a US store processing payments in USD via Stripe, shaving 1 second off load time can lift conversion rates by measurable margins in A/B tests. Page speed optimizations are part of typical engagements listed in our services overview.
Reduce friction at BOF: fewer fields, guest checkout, clear shipping expectations, and multiple payment options. Implement progressive disclosure for required information and server-side validation to lower friction. A focused CRO test that reduces checkout fields from 8 to 4 can reduce abandonment by a notable percent - test and measure the impact on CAC and MER in US dollars.
Client-side pixels undercount conversions in modern browsers. Server-side tracking with deduplication preserves accuracy and helps you calculate true CAC and LTV. Integrate GA4, Google Tag Manager Server, and your order webhooks to ensure events include order_id and value. For an agency perspective on technical implementation and measurement, see our team background on the About Prebo Digital.
Recommended quick audit: Run PageSpeed Insights, validate GA4 purchase events, and run a one-week server-side event comparison to estimate undercount in your US traffic. These quick checks identify low-effort, high-impact fixes.
Use a hypothesis-driven test plan: define KPI lift (revenue per visitor), estimate impact, prioritise by effort and potential, and iterate. A typical sequence is Strategy → Build → Test → Scale → Report. Document tests and keep statistical rigor; for many US stores, multivariate or sequential A/B testing on product pages and checkout proves the most reliable ROI.
| Week | Focus | Expected outcome |
|---|---|---|
| 1 | Speed & analytics audit | Identify 10-20% faster load opportunities |
| 2-4 | Checkout simplification & tracking build | Reduce abandonment, improve attribution accuracy |
| 5-8 | CRO tests on product pages | Lift conversion rate by statistically significant margin |
When optimization is approached as a revenue system - prioritising profitable increments rather than traffic volume - you reduce CAC and increase long-term profitability. If you want to explore applying these steps to your stack (Shopify, Stripe, Klaviyo, HubSpot), request a tailored evaluation via our contact page to share specifics. Explore the framework and see a real-world example to understand expected effort and ROI.
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