The OWASP Top 10 is a standard awareness document for developers and web application security.
It represents a broad consensus about the most critical security risks to web applications.
Networking Fundamentals
HTML Tutorial
CSS Tutorial
Introduction to SQL
Introductory Training Modules
OWASP Top Ten List
Install Burp Suite Community Edition
Connect to TryHackMe's VPN
TryHackMe: Introduction to OWASP Zap
TryHackMe: OWASP Top 10
TryHackMe: Web Hacking Fundamentals Module
Web Security Academy
TryHackMe: Web Fundamentals Pathway
OWASP Juice Shop
Juice Shop Companion Guide
Hackazon
WebGoat