When do you use iframe tag

Answer 1

-Please note that iframes are no longer supported in html 5, so please don't use them.-

Edit: As Sonic pointed out, iframes are actually will supported, although some of its attributes are not. I must have got mixed up with the Frame & Frameset tags, which have been removed from html5. Thanks bro.

Answer 2

Anthony Quick I thought IFrame is supported but Frame is not. E. g. https://www.quackit.com/html_5/tags/html_iframe_tag.cfm