Detectamail. AI-powered phishing email detector.

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Field notes

Field note 03Dec 2025

  • GCP
  • Gemini API
  • JavaScript
  • REST APIs
  • HTML/CSS

The problem

Phishing is the payload that turns one distracted click into an incident. Most people forward a suspicious email to IT and wait — the goal here was to put a fast, private first-pass triage directly in the browser.

The approach

  1. Analyzes across four areas: sender authentication (spoofing, domain reputation), content (urgency and social-engineering language), technical indicators (disguised URLs, domain age, SSL), and structural patterns (header anomalies, attachment risk).
  2. Google Gemini 2.0 performs the analysis behind a clean threat score (0–100) with a named risk level: Critical, High, Medium, Low, or Safe.
  3. Every result ships with the red flags it found and an immediate action recommendation, so the output teaches while it triages.
  4. Deployed serverless on Google Cloud Run behind a GitHub Pages front end, returning assessments in under five seconds.
  5. Zero-retention architecture: no storage, no logging, no cookies — the email text exists only for the duration of the request.

Demonstrates

  • Phishing analysis
  • Applied AI in a security workflow
  • Cloud deployment (Cloud Run, GCP)
  • Privacy-first system design