How to add an iFrame to a website in WordPress?

The most basic way to add an iFrame in WordPress is to use HTML. This can be done in the “Text” tab of the classic editor. If you’re using Gutenberg you’ll have to add a Custom HTML block. Here is example HTML to put Bing.com into an iFrame. You can replace the Bing URL with whichever site you would like to embed with an iFrame.
For More Information Please Refer:
https://smartwp.com/wordpress-iframe/
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