What is Google Fonts?
A free open-source web font library hosted by Google, used by millions of sites to serve typefaces with one or two lines of HTML or CSS.
Google Fonts hosts more than 1,500 typefaces under open-source licenses (mostly OFL and Apache). Including a font is one <link> to fonts.googleapis.com and one font-family declaration in CSS. The CDN handles caching, format selection (woff2 for modern browsers), and subsetting. For most teams, Google Fonts is the path of least resistance to good typography.
There are tradeoffs. The default integration introduces a third-party request (and historically a privacy concern in the EU after a German court ruled that the request leaks IP addresses). Self-hosting Google Fonts (the npm i @fontsource/inter pattern) sidesteps both: same fonts, no third-party request, fully under your CDN.
For brand monitoring, Google Fonts is the most common typeface source on the web. Detecting that a site loads Inter from fonts.googleapis.com/css2?family=Inter is a one-liner of HTML parsing, and identifying the brand's exact weights and styles falls out of the same parse.
In the wild
- A landing page including
<link href="https://fonts.googleapis.com/css2?family=Inter:wght@400;600&display=swap" rel="stylesheet">to ship Inter Regular and Semibold - A privacy-aware EU site self-hosting Google Fonts via Fontsource to avoid the third-party request
- Context.dev detecting that 60% of analyzed brands serve Inter, Roboto, or Open Sans from Google Fonts