2.5x higher conversions for a US marketing agency

The situation

A digital marketing agency managing referral campaigns for multiple clients across separate tools (email in one platform, social contests in another, affiliate tracking in a spreadsheet) cannot give any client a clear picture of what drove a conversion. When attribution is fragmented, the strategic value of referral marketing disappears into manual reconciliation.

The agency needed a platform that could house every campaign type in one place, attribute conversions to specific referrers, and let non-technical marketers build and embed campaigns without a developer on every project. We built GrowViral for that. Referral programs, sweepstakes, social contests, and affiliate campaigns all run from the same dashboard with unique URL tracking across every channel. The client reported that conversion rates increased 2.5x for active campaigns. The platform integrates with 12+ marketing tools.

Most referral programs fail for a boring reason: they are launched as a substitute for word-of-mouth instead of an amplifier of it. A bigger reward cannot rescue a program with nothing real underneath. And the code kills the recommendation: hand someone a code to paste and you have quietly told them the thing they are doing is affiliate marketing, not gratitude, with a bounty on their friend's head. GrowViral's job is to amplify what is already real and attribute every conversion honestly.

What we had to solve

• Building a template editor that produces professional, embeddable output for non-technical marketers

  A drag-and-drop campaign editor that looks flexible in a demo but produces brittle HTML when embedded on client websites is worse than a simple static template. The editor had to generate clean, embeddable widgets that displayed correctly on any website's existing stylesheet, scaled for mobile, and did not require the receiving site to add any CSS override. Building that underlying output layer while keeping the editing experience accessible to marketers with no HTML knowledge was the front-end engineering challenge at the core of the product.

• Tracking referral attribution reliably across social platforms, email, and direct links

  Referral attribution is only useful if it is accurate. Social platform sharing, email forwarding, and direct link copying each handle tracking parameters differently: some strip query strings, some truncate URLs, some cache pages that lose the original parameters. Building a unique URL system that maintained attribution through those paths, handled edge cases where the tracking parameter was lost, and flagged suspicious patterns (same referral link used from many different IPs in a short window) required careful design of the tracking layer before any campaign mechanic was built on top of it.

1. Marketers build campaigns without HTML or a developer

   Marketers create campaigns using a visual editor that requires no HTML knowledge. Campaign components (entry forms, referral links, social share buttons, prize descriptions, countdown timers) are dragged, configured, and previewed in real time. The output is a clean embeddable widget that drops into any client website via a script tag without requiring CSS overrides or developer involvement on the receiving site.

   

2. Every referrer's contribution attributed, no spreadsheets

   Each campaign participant receives a unique referral URL that persists across social sharing, email forwarding, and direct linking. Conversions and actions are attributed to the specific referrer who drove them. The attribution dashboard shows each referrer's contribution: clicks, conversions, commission earned, and campaign entries, replacing manual spreadsheet tracking with a live, queryable record.

   

3. Campaigns drop into any client site with one script tag

   Campaign widgets embed on any web page with a single script tag: opt-in pages, welcome pages, product pages, thank-you pages. The widget renders the configured campaign mechanics without requiring the host site to use a specific CMS or framework. Campaigns can also be shared as standalone pages hosted on custom domains with automatic SSL certification, so clients with no website can still run the campaign.

   

4. All client campaigns in one view, results export at close

   All active campaigns (referral programs, sweepstakes, social contests, affiliate programs) are visible in one dashboard. Real-time analytics show conversion rates, referral chain depth, top performers, and channel breakdown per campaign. Agencies see aggregate performance across all client accounts; individual clients see only their own data. At campaign close, the platform generates a full results page and exports winner data for payout processing.

   

How it runs

Hasura

Campaign performance data (referral events, click tracking, conversion attribution, affiliate activity) needed to update in real time across the dashboard. Hasura's auto-generated GraphQL API eliminated the need to write repetitive data-fetch endpoints for every campaign metric type.

NestJS

The business logic layer (campaign eligibility rules, unique URL generation, winner selection algorithms, affiliate commission calculation, and fraud pattern detection) required structured, testable service modules. NestJS's architecture kept each domain organized as the feature set expanded.

Next.js

Campaign landing pages needed fast server-side rendering so that a referral link shared on social media loaded instantly. A slow-loading campaign page kills the conversion the referral was meant to drive. Next.js served those pages from cache with ISR revalidation.

React

The drag-and-drop campaign template editor required a rich client-side interaction model that server rendering cannot support. A dedicated React SPA for the admin gave us full control over the editor's real-time preview, component drag behavior, and the embeddable widget output generation.