How the Internet and the Web Fit Together
Internet vs Web
The basic idea
The internet is the global network of connected computers. The web is one service that runs on top of the internet and lets us visit websites through links and browsers.
Internet and web
Internet
- The network infrastructure
- Supports email, web, file transfer, and more
Web
- A service that uses the internet
- Built from pages linked by URLs
Requests, Responses, and URLs
What happens when you visit a page
A URL is the address of a resource on the web. The browser requests that resource from a server. If the server finds it, it responds with content; if not, it may return an error.
Important terms
Why HTTPS matters
HTTPS helps protect data sent between the browser and the server, which is especially important for passwords, forms, and payments.
What does a browser do first when you enter a web address?
The browser requests the resource from a server.
Correct answer: Sends a request to a server
What is a URL?
It tells the browser where to find a page or file.
Correct answer: A URL is the address of a web resource.
Which is a secure version of HTTP?
HTTPS is HTTP with encryption and security features.
Correct answer: HTTPS