If you want a simple explanation, HTTP is like a language. You talk in english, your browser mostly talk in HTTP.
When you search "dev.to" in your browser, it will ask the dev.to server with HTTP (just a specific syntax) to get the right file, and the dev.to server will return the webpage with the same language so your browser can understand. HTTP includes some meta-data to help your browser to understand what's going on, like status code (if the server had a problem, if the server can't find the file, etc) or even what type of data it's looking for (HTML file, plain text, image..)
You can just see HTTP a language that you never have to read if it's not your job, but without it, internet won't be as fun
Oh wow. This is really good.
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