Is there any creative way to populate html directly from a URL?

I am not trying to avoid using code (JS etc) here, but to build a certain tool.

Say I have a url string like domain.com/somthing, and this URL can return a single string like "John", or maybe a JSON, according to my design.

Is there any way today using html/CSS alone, to populate html elements, using the respond from this url directly without code?

This for example is not possible: <input value='domain.com/somthing' type="text"> even if the url will return a pure string like "John".

Is this maybe possible using CSS or developers must use code ?

>Solution :

The iframe element can display another resource embedded in the current page.

<iframe src="//example.com/"></iframe>

… but there is no HTML or CSS mechanism for setting an attribute value on an arbitrary element using a URL. You would need JS for that (e.g. fetch + DOM).