For example, you can embed videos or images from other websites.
How to use oEmbed in WordPress
This format is very easy to use in WordPress. In the place where you want to paste the selected content, enter its URL. WordPress will take care of the rest. This way you can embed YouTube, Vimeo and DailyMotion videos, Instagram images, Flickr, SoundCloud music and much more.
When you paste a YouTube video URL into your WordPress page, the URL will be transformed and the embedded video will appear on the page . If your topic does not display it in the process of creating a post or page, it will display it after it is published.
For a complete list of embedded WordPress providers, visit WordPress.org .