A performance-first retained marketing offering that pairs web development with attribution, CRO, and ongoing optimization to increase lifetime value and reduce CAC.

Image via 123RF
Fill out the form below and our team will get back to you within 24 hours
Discover what makes us different
Clean, current interfaces built around your brand rather than a stock template.
Designed for mobile first, where the majority of South African traffic lands.
A 2.5 second average load time across the 300+ websites we have built.
Official Shopify partners for ecommerce builds, migrations and support.
Here's what sets us apart from the competition
Find answers to common questions
We build Shopify and WooCommerce sites with a technical-first approach that combines user experience, conversion-rate optimisation, and back-end analytics to support revenue-focused outcomes and scalable growth.
We implement GA4, Google Tag Manager, server-side tracking, and data pipeline practices (ETL) to reduce signal loss and align marketing metrics with actual revenue and customer journeys.
CRO is integrated throughout design and development: we use quantitative analytics and A/B testing to identify friction, iterate page layouts and copy, and prioritise changes that increase revenue per visitor.
Design decisions are evaluated by measurable impacts on conversion rate, average order value, customer lifetime value, and acquisition cost, with priorities set to improve profitability rather than vanity metrics.
We handle both new builds and redesigns as well as migrations, performance optimisation, and technical debt remediation while preserving or improving revenue-critical tracking and integrations.
In This Article
Ongoing development
Clean attribution
Revenue-first roadmap
Retained marketing agency services for web development projects combine ongoing technical development with continuous performance marketing, measurement, and conversion rate optimisation. Instead of a one-off site build, a retained engagement is designed to iterate: deploy improvements, validate impact with clean tracking, and prioritise revenue lift over raw traffic gains. This approach is built for Shopify and WordPress stores, B2B SaaS landing pages, and service sites where profitability and attribution clarity matter.
Founders, marketing directors, and growth teams in the US who need continuous funnel improvements and reliable attribution benefit most. Prebo Digital’s retained services unite development velocity with media accuracy so teams can reduce CAC, increase LTV, and improve marketing efficiency (MER).
Prebo Digital follows a strategy → build → test → scale → report rhythm. The retained relationship ensures continuous measurement and prioritised work that focuses on revenue impact rather than one-off deliverables. To see an overview of our services and how they map to retained engagements, view our Services overview and the agency's approach on the About us page.
A retained engagement is process-driven. First, we define revenue targets and the attribution model. Then we prioritise work that moves the needle: site speed improvements, checkout reduction, or lead-form optimisation. Development and experiments run in parallel so technical debt is reduced while conversion lift is validated. This is central to retained marketing agency services for web development projects and ensures each sprint is tied to measurable business outcomes.
| Stage | Focus | Example deliverables |
|---|---|---|
| TOF | Reach & relevance | Landing pages, SEO content, ad creative tests |
| MOF | Engagement & consideration | On-site personalization, email flows, retargeting pages |
| BOF | Conversion & retention | Checkout UX, post-purchase flows, subscription funnels |
Retained marketing agency services for web development projects make tracking and attribution core deliverables. Without server-side tagging and validated GA4 events, platform-reported conversions can overstate channel performance. Retainers fund the continuous instrumentation required to measure true revenue, align paid media with backend order data, and resolve attribution gaps.
Retained models are typically scoped as monthly retainers covering a set number of development hours, CRO experiments, analytics maintenance, and reporting cadence. For US-based eCommerce and B2B clients, retained engagements often include quarterly roadmap planning, sprint delivery, and a single cross-channel performance report tying spend to revenue. Example retainer ranges can vary by complexity; small stores may start at an estimated $4,000-$7,000/month while larger, enterprise projects commonly exceed $15,000/month. These figures are illustrative estimates and should be validated during scoping.
Quick note: The retained model is designed to prioritise measurable business impact and provide the consistent technical capacity required for long-term growth.
If you’re evaluating retained marketing agency services for web development projects, review agency capabilities and case studies, and confirm how tracking and measurement will be maintained across the engagement. Learn more about Prebo Digital’s overall approach on the homepage and find contact options on the Contact page.
Here's what sets us apart
Don't just take our word for it
Keep reading
Speak with our web design specialists. Free design mockup & consultation.
Get Free Design Quote