A technical-first performance marketing agency for conversion rate optimization that combines attribution accuracy, funnel optimisation, and revenue-first testing to grow profitable sales.

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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 CRO
Technical tracking
Structured testing
Brands search for a performance marketing agency for conversion rate optimization when they need consistent revenue lift from existing traffic rather than raw traffic volume. Conversion rate optimisation (CRO) done with a revenue-first mindset focuses on reducing customer acquisition cost (CAC), increasing average order value (AOV), and improving lifetime value (LTV) so each advertising dollar returns measurable profit.
A performant CRO engagement follows a repeatable framework: diagnose funnel leaks, implement tracking and server-side attribution, run prioritized experiments, and scale winning variants while reporting on profitability metrics like MER and contribution margin. This is the core work Prebo Digital executes as a performance marketing agency for conversion rate optimization across Shopify and WooCommerce stores and B2B funnels.
A performance marketing agency for conversion rate optimization works alongside Google Ads, Meta, and platform media buys to convert more of the same traffic. Strong CRO reduces wasted ad spend and improves ROI without increasing media budgets. For an overview of complementary services, see our Services Overview.
Learn how Prebo Digital combines analytics and automation to deliver measurable outcomes on the homepage: Prebo Digital homepage.
Design and development changes for CRO should be hypothesis-driven and tied to revenue impact, not aesthetic preference. For background on our team and approach, see About Prebo Digital.
Below are practical CRO engagements commonly delivered by a performance marketing agency for conversion rate optimization. All pricing is illustrative and US-focused; actual retainers vary by scope and technical complexity.
| Engagement | Common deliverables | Estimated monthly retainer (US) |
|---|---|---|
| Conversion-focused audit | Funnel mapping, tracking checklist, prioritized test list | $3,000 - $8,000 |
| Ongoing CRO retainer | Weekly experiments, design & dev sprints, analytics | $5,000 - $15,000+ |
| Tracking & attribution hardening | GA4 migration, server-side tagging, attribution model setup | $4,000 - $12,000 |
A performance marketing agency for conversion rate optimization should tie every experiment to a revenue KPI (e.g., incremental $ per visitor, CAC delta). Prioritization frameworks such as PIE (Potential, Importance, Ease) help focus on revenue-backed wins first.
Monthly reporting should move beyond platform-reported conversions to clean attribution and profit-focused metrics like MER and contribution margin. Expect dashboards fed by GA4 and server-side events with clear annotations for tests and media changes. If you want to explore how our retainers are structured, review the practical service layout on the Services Overview and contact options at Contact Prebo Digital.
Practical note: when estimating impact, model results conservatively. For example, a 10% conversion uplift on a store with 10,000 monthly visitors and $50 AOV is an estimated incremental $50,000 in gross revenue per month before platform fees and fulfillment-figures used here are illustrative.
Technical-first agencies prioritize clean data pipelines, server-side tracking, and experimentation infrastructure that supports reliable wins. This reduces noisy signal and allows performance marketers and in-house teams to make decisions with confidence. To learn more about Prebo Digital’s combined analytics and development approach, visit our homepage for examples of past frameworks.
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