SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

on.com

Last analyzed 10/4/2026, 12:18:35 PM UTC

Curious about the design behind on.com?

SiteFontCheck scanned their live CSS architecture and identified 3 unique font families.

The website relies heavily on on, noto sans jp, noto sans kr, system-ui, -apple-system, segoe ui, roboto, ubuntu, cantarell, noto sans, sans-serif, apple color emoji, segoe ui emoji, segoe ui symbol, noto color emoji for its main text elements, paired with on mono, menlo, consolas, roboto mono, ubuntu monospace, noto mono, oxygen mono, liberation mono, monospace and on semi mono, menlo, consolas, roboto mono, ubuntu monospace, noto mono, oxygen mono, liberation mono, monospace as fallback options.

3
unique font families
Primary font
on, noto sans jp, noto sans kr, system-ui, -apple-system, segoe ui, roboto, ubuntu, cantarell, noto sans, sans-serif, apple color emoji, segoe ui emoji, segoe ui symbol, noto color emoji

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

Detected Fonts

3 found

on, noto sans jp, noto sans kr, system-ui, -apple-system, segoe ui, roboto, ubuntu, cantarell, noto sans, sans-serif, apple color emoji, segoe ui emoji, segoe ui symbol, noto color emoji

389

Skip to main content

on semi mono, menlo, consolas, roboto mono, ubuntu monospace, noto mono, oxygen mono, liberation mono, monospace

1

AI

on mono, menlo, consolas, roboto mono, ubuntu monospace, noto mono, oxygen mono, liberation mono, monospace

5

Bestseller

Loading preview...

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.