An HTML frame tag is used to display multiple sites on a single web page in the form of sections. This tag allows designing a web page so that multiple web pages with different content can be combined and displayed individually on a single web page. This is achieved by dividing the single web page into different sections, which may be called a frame. The individual frames can be loaded separately. The frame tag is used along with the frameset tag, where frameset tags can be considered as container, and multiple frame tags in it will represent multiple sites.
The src attribute specifies the source of a file. The tag supports some other attributes, but src is the main attribute.