SiteFontCheck

No extension free font checker analyzer for modern web design

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Fonts used by

opendefinition.org

Last analyzed 10/29/2026, 7:11:40 AM UTC

Curious about the design behind opendefinition.org?

SiteFontCheck scanned their live CSS architecture and identified 1 unique font family.

The website relies heavily on hk grotesk, sans-serif for its main text elements across its main text elements.

1
unique font family
Primary font
hk grotesk, sans-serif

Below is the precise map of font sizes, weights, and text elements used across their site.

Detected Fonts

1 found

hk grotesk, sans-serif

141

Open Definition

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About SiteFontCheck

SiteFontCheck is a powerful no extension free font checker analyzer that analyzes any website to identify and display all fonts used in real-time. Simply enter a URL and instantly discover the typography behind your favorite websites.

About SiteFontCheck

No extension free font checker analyzer for modern web design. Detect, analyze, and explore fonts across any website with our powerful, user-friendly interface.