[tffhrdvv]

Um did you even open the link?

What is this for? Apple offers tools, such as Apple Configurator that allow you to create your own iOS Configuration Profiles. Apple Configurator is only availble for MacOS devices. This is useful if you do not have access to one but still need this.

This site will help generate a configuration profile based on the network information you provide. Using this, you can import the profile into your mobile devices (via a method such as an MDM).

You can see all of the modified output in the bottom as aqua text.

All of this is run client-side, within the browser.

Extra stuff:

Apple MDM Configuration Profile Reference

[Kwpolska]

This doesn’t really explain what a profile would be useful for, as opposed to manually configuring the Wi-Fi network, or using QR codes.

[Jolter]

The text explains “what”, but not “why”. Who needs a Configuration Profile?

[hunter2_]

Based on it mentioning MDM, I assume profiles are the only way to join a network on some phones with MDM enabled? So maybe it's for companies that procure many iPhones and zero Macs?