SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

sui.io

Last analyzed 11/7/2026, 7:09:19 PM UTC

Curious about the design behind sui.io?

SiteFontCheck scanned their live CSS architecture and identified 2 unique font families.

The website relies heavily on twk everett, arial, sans-serif for its main text elements, paired with twk everett mono, arial, sans-serif as fallback options.

2
unique font families
Primary font
twk everett, arial, sans-serif

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

Detected Fonts

2 found

twk everett, arial, sans-serif

391

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twk everett mono, arial, sans-serif

118

Overview/

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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.