SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

metr.org

Last analyzed 9/24/2026, 6:12:46 PM UTC

Curious about the design behind metr.org?

SiteFontCheck scanned their live CSS architecture and identified 4 unique font families.

The website relies heavily on instrument sans, -apple-system, helvetica neue, arial, sans-serif for its main text elements, paired with instrument sans, system-ui, -apple-system, segoe ui, roboto, helvetica neue, arial, sans-serif and montserrat, sans-serif as fallback options, and 1 additional.

4
unique font families
Primary font
instrument sans, -apple-system, helvetica neue, arial, sans-serif

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

Detected Fonts

4 found

instrument sans, -apple-system, helvetica neue, arial, sans-serif

187

Our Work

instrument sans, -apple-system, serif

10

Menu

instrument sans, system-ui, -apple-system, segoe ui, roboto, helvetica neue, arial, sans-serif

33

Model Evaluation & Threat Research

montserrat, sans-serif

14

2020

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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.