What Actually Happens When You Type google.com? (DNS, IP Addresses & Ports)

Have you ever wondered what actually happens when you type a website into your browser? Before a web page loads, several networking concepts work together behind the scenes: DNS, IP addresses, and ports. In this System Design Fundamentals lesson, you'll learn: ✅ What an IP address is ✅ Why computers need IP addresses ✅ What ports are and why they exist ✅ Common ports like 80 and 443 ✅ How DNS converts domain names into IP addresses ✅ What happens when you type google.com into a browser ✅ How browsers find servers on the internet ✅ The complete request journey from browser to server Understanding networking fundamentals is essential for: System Design Interviews Software Engineering Interviews Backend Engineering Cloud Computing Distributed Systems Microservices Architecture This lesson is part of the System Design Fundamentals series, where we build a strong foundation before diving into scaling, databases, caching, load balancers, and distributed systems. 📚 Topics Covered: DNS IP Addresses Ports HTTP HTTPS Networking Fundamentals Browser Requests Internet Architecture System Design Basics #SystemDesign #DNS #Networking #BackendEngineering #SoftwareArchitecture #SystemDesignInterview #DistributedSystems #CloudComputing #SoftwareEngineer #Programming