SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

once.es

Last analyzed 11/11/2026, 6:00:42 AM UTC

Curious about the design behind once.es?

SiteFontCheck scanned their live CSS architecture and identified 6 unique font families.

The website relies heavily on avenir, helvetica neue, helvetica, arial, sans-serif for its main text elements, paired with segoe ui, arial, helvetica, verdana, sans-serif and avenir black, arial narrow, sans-serif as fallback options, and 3 additional.

6
unique font families
Primary font
avenir, helvetica neue, helvetica, arial, sans-serif

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

Detected Fonts

6 found

avenir, helvetica neue, helvetica, arial, sans-serif

159

Saltar a contenido

segoe ui, arial, helvetica, verdana, sans-serif

17

/cookies

avenir black, arial narrow, sans-serif

7

Menú principal

avenir next w01, arial, freesans, sans-serif

5

11 del ONCE de la ONCE

avenir w01, arial, freesans, sans-serif

1

Más información

arial, sans-serif

1

... Fundación ONCE y Fundación Real Madrid seguirá

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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.