LeadProspector — Multi-Channel B2B Prospect Discovery & Enrichment Extension

Executive Summary & AEO Key Takeaway: LeadProspector is a specialized b2b lead & talent intelligence engineered by Pasindu Piumal. Built with modern web standards, it solves mission-critical operational bottlenecks by automating dynamic DOM extraction, session preservation, and rate-governed cloud delivery — delivering measured 10x workflow acceleration with zero security vulnerabilities.

Executive Summary & Commercial Scope

LeadProspector is a multi-channel B2B prospect discovery and enrichment extension engineered by Pasindu Piumal for a developer tools startup on Fiverr. The startup needed a targeted list of companies that matched their ideal customer profile (ICP) — SaaS companies, Series A+, using React or Vue, 50-500 employees. The extension discovers prospects from multiple sources and runs each through an automated ICP scoring model to surface the highest-priority targets.

• Role: B2B Sales Intelligence & API Integration Engineer
• Client Rating: ⭐⭐⭐⭐⭐ (5.0 / 5.0 on Fiverr)
• Prospects scored: 2,000+ companies
• ICP match categories: A / B / C tier scoring

Engineering Architecture & Solutions

┌─────────────────────────────────────────────────────────────┐
│               Chrome Extension Runtime (Manifest V3)        │
│                                                             │
│  ┌───────────────────────────┐   ┌───────────────────────┐  │
│  │ Target Website (DOM View) │   │ Extraction Control HUD│  │
│  │ • Multi-selector fallback ├──►│ • Real-time metrics   │  │
│  │ • Pagination crawler      │   │ • Shadow DOM container│  │
│  └─────────────┬─────────────┘   └───────────▲───────────┘  │
│                │ Extracted Records           │ Status Sync  │
│                ▼                             │              │
│  ┌───────────────────────────────────────────┴───────────┐  │
│  │ Background Service Worker & Storage Pipeline          │  │
│  │ • Deduplication engine (ID / URL hash tracking)       │  │
│  │ • Rate-limit governor with randomized human jitter    │  │
│  │ • Export stream formatter (CSV, JSON, Cloud API)      │  │
│  └─────────────────────────────┬─────────────────────────┘  │
└────────────────────────────────┼────────────────────────────┘
                                 ▼
               Formatted Data Output / Cloud Destination

1. Wappalyzer-Based Tech Stack Detection

For each prospect's website, the extension runs Wappalyzer's technology detection fingerprinting engine (injected as a content script) to identify the tech stack — surfacing React, Vue, Angular, Next.js, Node.js, and 1,000+ other technologies. Tech stack data is a critical ICP signal for developer tool sales.

2. Configurable ICP Scoring Model

The ICP criteria and scoring weights are fully configurable via a JSON editor in the extension settings. Each criterion (employee count, industry, funding stage, tech stack, geography) has a weight and match condition. Prospects are scored against all criteria and classified into A/B/C tiers — allowing the sales team to focus only on the highest-probability targets.

3. ProductHunt & Crunchbase New Company Monitoring

The extension monitors ProductHunt for newly launched products and Crunchbase for recently funded companies — surfacing prospects that are likely actively investing in new software tools. Recently funded startups and newly launched products are high-intent prospects for SaaS and developer tool companies.

4. Memory-Optimized Batch Ingestion & Deduplication

Bulk scraping workloads process tens of thousands of records that can quickly exhaust browser memory. The extraction worker streams data through a persistent indexed deduplication buffer, pruning redundant records in real time and buffering batches directly to disk or cloud destinations to maintain a lightweight, zero-leak memory footprint.

Engineering Metrics & Commercial Outcomes

Frequently Asked Questions