Featured App

PortLab

A practical networking PWA for learning common ports, protocols, TCP/UDP transport, troubleshooting patterns, and security relevance without relying on rote memorization alone.

Public Beta

PortLab

Daily port study, flashcards, quizzes, and troubleshooting scenarios.

Memorize less. Diagnose better.

Port library

Searchable common-port reference covering protocol, transport, purpose, and practical recognition cues.

Practice modes

Daily port, flashcards, quiz mode, and scenario trainer for help desk, Network+, and Security+ readiness.

Private by design

Progress and favorites are stored locally in the browser. No account is required in the current build.