What is an iFrame?

An iFrame is an HTML element that allows you to embed external content in a web page. Learn about advantages, disadvantages, and alternatives to iFrames.

What is an iFrame?

An iFrame, short for inline frame, is an HTML element that allows another web page or document to be displayed within the current web page. iFrames are often used to embed external content such as videos, maps, or forms without having to reload the entire page.

How iFrames work

iFrames work similarly to regular HTML frames, but they are placed within the body area of a web page rather than in the header area, as is the case with classic frames. An iFrame is created by the HTML tag , which has some attributes to customize the size, content and behavior of the iFrame. The most commonly used attributes are:

  • src: The URL of the page or document to embed.
  • width and height: The width and height of the iFrame in pixels or percent.
  • frameborder: The setting whether to display a frame around the iFrame or not.
  • scrolling: The setting whether the iFrame should display scrollbars if the content is larger than the iFrame itself.

Advantages and disadvantages of iFrames

iFrames have both advantages and disadvantages that must be considered when deciding whether to use them in a web project.


  • Easy integration of external content such as videos, maps or forms
  • Independent loading of the embedded content, which can lead to faster page loading
  • Flexibility and customization through attributes and CSS


  • Possible security risks due to embedding content from unknown sources
  • Possible interference with search engine optimization (SEO), since some search engines do not read or index the content within iFrames
  • Usability issues on mobile devices, especially when resizing iFrames.

Alternatives to iFrames

Since iFrames have some drawbacks, there are alternative technologies that can be used to embed content. These include:

  • HTML5 video and audio tags: For embedding multimedia content
  • JavaScript apis: For dynamic content loading and interaction with web services.
  • CSS: For styling and customizing web page content.
  • Object or embed tags: For embedding applications and content that cannot be directly integrated into HTML.

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