How Does Internet Work?
About this Course
Understand what really happens behind the scenes when you open a website, type a URL, or send a request over the internet. This course builds a strong foundation in how the internet works, starting from the basics and progressing into essential concepts such as computer networks, IP addresses, DNS, domain names, URLs, HTTP/HTTPS, browsers, web servers, ports, protocols, routing, TCP/IP, and client-server communication. By the end of the course, learners will understand the complete journey of a web request—from entering a website address in the browser to receiving and rendering the response. This foundation will help learners better understand web development, backend systems, APIs, networking, cloud computing, and DevOps.
- Understand how the internet works from end to end
- Understand the difference between the Internet and the World Wide Web
- Learn how computers communicate over networks
- Understand IP addresses, public IPs and private IPs
- Understand domain names and how DNS works
- Learn what happens when you enter a URL in a browser
- Understand URLs, protocols, ports and network requests
- Learn how HTTP and HTTPS communication works
- Understand the client-server architecture of the web
- Learn the roles of browsers, web servers and application servers
- Understand TCP/IP and how data travels across networks
- Learn how routers and ISPs help internet traffic reach its destination
- Understand HTTP requests, responses, methods and status codes
- Understand the role of SSL/TLS in secure web communication
- Trace the complete journey of a web request from browser to server and back
Prerequisites
- No prior networking knowledge required
- No prior web development experience required
- Basic computer usage skills
- Curiosity to understand how websites and the internet work
Full immediate access