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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 evaluation
Attribution & tracking
CRO + PPC process
Choosing how to choose a ppc and cro agency is not just about ad spend or fancy dashboards - it’s about finding a partner that drives profitable revenue, reduces CAC, and improves lifetime value (LTV) through measurable tests. For US-based founders, marketing directors, and Shopify or WooCommerce store owners, the correct mix of paid media and conversion rate optimisation turns traffic into predictable, profitable growth.
Before interviews, prepare this checklist: documented case studies with numbers (use ranges not promises), examples of attribution fixes they implemented, a sample CRO test plan, and a typical retainer scope. Compare each vendor’s offerings on your shortlist against your internal objectives. For a clear view of service scopes, review a full services breakdown at Prebo Digital’s services overview and confirm the specific inclusions you need.
If you want a quick company-level benchmark, compare how each agency describes their strategy → build → test → scale → report process. Agencies that use a structured framework align better with scaling brands focused on profitability and predictable CAC. For a high-level company background and approach, see Prebo Digital’s positioning at Prebo Digital’s homepage.
When you meet prospective partners, use targeted questions that separate strategy from buzzwords. Ask: “How do you tie paid spend to incremental revenue?”; “Show a conversion funnel you optimised and the specific A/B tests run; what moved revenue?”; “How do you validate server-side events and reconcile them with platform conversions?” These questions force concrete answers about attribution, experimentation, and data hygiene.
Map the funnel (TOF → MOF → BOF) and list the tracking events required at each stage. Below is a simple table you can use during vendor interviews to confirm coverage.
| Funnel Stage | Primary Metrics | Tracking & Validation |
|---|---|---|
| TOF (Awareness) | Impressions, Clicks, View-throughs | Ad platform clicks + UTM tagging; ad impressions for reach modelling |
| MOF (Consideration) | Landing page engagement, add-to-cart, lead forms | Client-side events, GTM validation, session stitching (GA4) |
| BOF (Conversion) | Purchases, MRR, Qualified Leads | Server-side purchase events, backend revenue reconciliation |
Example: a mid-market Shopify store with $50 average order value (AOV) and a goal to reduce CAC from $30 to $20. A combined PPC + CRO approach could reallocate $5-$10 of spend into higher-converting pages and run tests aimed at increasing AOV by 10-20%. These are estimates and depend on conversion lift and test results, but the evaluation should be revenue-oriented and modelled in dollars during the proposal phase.
Common structures include monthly retainers for strategy, implementation hours for tag and site work, and performance bonuses tied to agreed metrics. Make sure any bonus structure specifies how attribution is calculated and which data sources count toward measurement. Ask for a sample scope that lists deliverables explicitly (dashboarding, server-side events, test roadmaps).
When you want to validate cultural fit and long-term partnership potential, review a vendor’s team composition, reporting cadence, and escalation path. Learn about our approach to long-term, measurement-driven growth and how we systemize experimentation on the About page. If you prefer a direct conversation after narrowing your shortlist, use the contact options on our contact page to request a tailored vendor checklist.
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