When files (like images, fonts, or other media) are embedded as Data URLs, the browser doesn’t need to make separate server calls for these resources. This can significantly speed up the loading time of a web page, especially in scenarios where multiple small files are involved.
For applications that require offline capabilities, Data URLs can be quite beneficial. By including all necessary files within the app, users can access content without relying on an internet connection, which is particularly useful for Progressive Web Applications (PWAs).
When you rely on external resources for images or data within your emails, you run the risk of broken links or images not being displayed. Data URLs eliminate this dependency entirely as the information is contained within the email itself, ensuring that your recipients will always see what you intended them to see.
You can use a Data URL Directly within the web browsers address bar or by using an online service like URL Opener