Beginner
Welcome to Robot Explains
A friendly tour of the site and how the web works. Start here!
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Beginner
What Is the Web?
URLs, HTTP, and domain names, the basics of how the web works.
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Beginner
How Web Pages Work
What really happens when you open a website.
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Beginner
What Is a Browser?
The app that shows you web pages, like Chrome or Safari.
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Beginner
What Is a URL?
The address that points to a page on the web.
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Beginner
What Is DNS?
The internet's address book: it finds a site by its name.
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Beginner
What Is HTTP?
The language browsers and servers use to talk.
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Beginner
What Is HTTPS?
The secure version of HTTP that keeps your connection private.
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Beginner
What Is a Padlock Icon?
The little lock that shows a website is using a safer connection.
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Beginner
What Is a Security Certificate?
A website's digital ID card that helps prove who it is.
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Beginner
What Is a Computer Network?
When computers connect so they can talk and share things.
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Beginner
What Is Wi-Fi?
Connecting your devices to the internet without wires.
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