Claude Code · A digital marketing agency

Google Ads Grader — self-serve audit & lead-gen funnel (Claude Code)

A free, self-serve Google Ads “grader” that gives charter and tour operators an instant benchmarked scorecard — and turns each result into a qualified lead for a marketing agency.

The problem

Charter and boat-tour operators rarely know whether their Google Ads spend is actually performing, and the agency needed a low-friction way to capture and qualify them. Manual ad audits don't scale as a lead source.

Approach

I built a single-flow funnel in Next.js — landing, a 10-question questionnaire, a score teaser, then an email-gated full report — backed by deterministic, unit-tested scoring logic and a staff admin back office. The whole thing was built spec-first with Claude Code.

What I built

• Deterministic 100-point scoring across ad spend, CPC, CTR, and conversion rate versus editable industry benchmarks
• Conditional question routing plus an anti-gaming guardrail that flags anomalous data
• Email-gated report with a server-generated, branded PDF stored on Vercel Blob
• Fire-and-forget GoHighLevel webhook that pushes captured leads into a nurture funnel, with hot leads prioritized
• Supabase-authenticated admin dashboard: submission search/sort, CSV export, and runtime-editable benchmarks
• Vitest unit tests across scoring, schema validation, and PDF rendering

Result

Shipped a production-ready lead-generation tool that converts a self-serve audit into qualified, automatically-nurtured leads — no manual auditing in the loop.