Suspicious URL Detector

A simple React app that demonstrates phishing detection basics by flagging URLs with suspicious patterns.

What it checks

• Missing HTTPS
• @ symbols inside the URL
• IP-based URLs
• Very long domain names
• Too many hyphens in the hostname
• Extra subdomains
• Common phishing keywords like login, verify, and billing

Example suspicious URL

http://paypal-secure-login.xyz

Run locally

npm install
npm run dev

Build

npm run build

Cybersecurity concept

This project is a beginner-friendly example of rule-based phishing detection. It does not guarantee a URL is safe, but it helps explain the kinds of signals security tools often inspect first.