SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

penguin.com

Last analyzed 11/1/2026, 12:38:35 AM UTC

Curious about the design behind penguin.com?

SiteFontCheck scanned their live CSS architecture and identified 8 unique font families.

The website relies heavily on source sans pro, sans-serif for its main text elements, paired with fort-book, arial and fort-medium, arial as fallback options, and 5 additional.

8
unique font families
Primary font
source sans pro, sans-serif

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

Detected Fonts

8 found

source sans pro, sans-serif

91

Skip to content

fort-book, arial

5

We, our affiliates, and our providers use cookies

fort-medium, arial

5

Manage Preferences

fort-bold, arial

3

Privacy Policy

zilla slab, serif

2

Reading Matters

work sans, sans-serif

2

Resources

shift-book, arial

2

Cookies and Similar Technologies

fort-light

1

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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.