LeadFlow B2B SaaS: Automated Lead Scraping & AI Site Auditing Engine
How we engineered an autonomous B2B lead generation engine with Google Maps scraper and 15-second AI site auditor processing 50,000+ leads daily.
Project Overview & Scope
LeadFlow (IIPL Lead) was engineered to solve high manual customer acquisition costs for tech agencies. It combines real-time Google Maps business data extraction with a 15-second automated website performance auditor that generates personalized PDF audit reports for cold outreach.
IIPL SaaS Lab
10 Weeks (Initial MVP in 4 weeks, AI Audit Engine in 3 weeks, Pipeline Dashboards in 3 weeks).
Core Problem Statement
B2B sales teams were spending 20+ hours per week manually searching Google Maps for local business contacts, evaluating site speeds manually, and writing cold emails with low open rates (< 12%).
4. Existing Operational Bottlenecks:
- Manual data entry errors when copying business addresses and phone numbers
- No automated way to evaluate site performance bugs before reaching out
- Low cold email response rates due to generic un-personalized templates
- Lack of centralized Kanban pipeline tracking for multi-agent sales teams
6. Solution Delivered
We engineered a full-stack Next.js 15 App Router platform with Puppeteer headless scraping microservices, PostgreSQL Pgvector indexing, and automated Node.js SMTP dunning pipelines.
Target Key Objectives:
- Automate Google Maps lead extraction with 99% email & phone accuracy
- Build a 15-second AI site auditor running Lighthouse performance audits on demand
- Triple cold email response rates via automated audit report attachments
- Achieve sub-second database query speeds for multi-tenant sales accounts
Key Features Developed
9. Architecture Overview
Built on Next.js 15 Server Components, the backend delegates heavy scraping and Lighthouse audits to asynchronous background worker queues, storing structured JSON lead payloads in Supabase PostgreSQL with Row Level Security.
12. Performance & Speed Ratings:
13. Business Outcomes
- Reduced client customer acquisition costs (CAC) by 65% in 60 days
- Scaled lead processing to 500+ active agency sub-accounts
- Generated over 1.2 Million automated cold email outreach sequences
15. Lessons Learned & Best Practices
- Asynchronous headless worker queues prevent main-thread server timeouts during bulk site audits.
- Personalizing cold emails with instant performance metrics dramatically boosts B2B conversion trust.
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