An Iframe (Inline Frame) is an HTML element that allows a webpage to embed another document or content, such as an ad or video, within it. Iframes are commonly used in advertising to load third-party ads without affecting the main page’s code.

Iframes enable flexible ad placement and improve page performance by isolating ad content. By using iframes, advertisers ensure their ads load independently, reducing the risk of conflicts with the website’s layout or functionality.