In short, web fonts make sure that your font will look the same across different browsers and devices. They are optimized for the web and that’s why they will always display correctly on websites, unlike regular fonts.
Normally, a web font version of your font is included in your purchase. If you are not sure if the font you are using is a web font or if you are using a free font, read this article and make sure your font is web use ready.
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