SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

stellarium-web.org

Last analyzed 11/5/2026, 6:00:57 PM UTC

Curious about the design behind stellarium-web.org?

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

The website relies heavily on roboto flex, roboto, helvetica neue, arial, sans-serif for its main text elements, paired with roboto, sans-serif as fallback options.

2
unique font families
Primary font
roboto flex, roboto, helvetica neue, arial, sans-serif

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

Detected Fonts

2 found

roboto flex, roboto, helvetica neue, arial, sans-serif

34

Stellarium

roboto, sans-serif

5

Stars

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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.