05Platform · Algorithm · Sales Tool

Swipe-to-Close —
Lead Platform with HTML Similarity Engine

A Tinder-style lead platform that renders live website previews in a PWA. Swipe right to trigger an outreach email; swipe left to discard. A custom recommendation algorithm analyses the HTML structure of sites you liked and surfaces new leads that match your preference profile. Every interaction trains your pipeline.

Live
Site rendering
ML
Recommendations
PWA
Multi-device
Auto
Email on swipe
Overview

Lead qualification at Tinder speed

Traditional lead qualification means opening site after site, manually evaluating each one. This platform makes it into a swipe-based interface — you see a live preview of the site, make a split-second decision, and move on. Right swipe triggers an AI-personalised outreach email instantly.

The more you swipe, the smarter the algorithm gets. It builds a profile of what "a good lead" looks like for you specifically — and starts surfacing recommendations before you'd ever find them manually.

The Algorithm

HTML Similarity Engine

When you like a site, the system parses its HTML structure — tag patterns, layout signatures, font choices, link density — and creates a feature vector. Your "liked" vectors are averaged into a profile. New sites are scored against this profile using cosine similarity. Sites above 0.78 threshold get queued automatically.

Engineering Challenges

Problems solved

Challenge 01
Live Site Rendering

Rendering external websites inside an iframe-based preview without CORS blocking, mixed content issues, or broken layouts — using a server-side proxy approach.

Challenge 02
Feature Vector Design

Choosing which HTML features to extract that actually correlate with "site quality" — and normalising them across wildly different site architectures.

Challenge 03
Cold Start Problem

With fewer than 5 liked sites, the similarity engine has too little signal. Solved with a curated seed set of "known outdated" sites to bootstrap the profile.

Challenge 04
Email Personalisation

Each outreach email needs to reference something specific about the site. The HTML analysis output feeds directly into the email template generator.

Tech Stack

Built with precision

ReactTypeScriptPWASimilarity AlgorithmEmail APINode.jsHTML Parsing
Results

Measurable impact

Time to qualify one lead< 2s
Email triggered on swipeInstant
Reply rate~18%
Algorithm improves withEvery like
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