SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

sleep.org

Last analyzed 11/1/2026, 12:06:06 AM UTC

Curious about the design behind sleep.org?

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

The website relies heavily on lato, sans-serif for its main text elements, paired with pt serif, serif and -apple-system, blinkmacsystemfont, segoe ui, roboto, helvetica, arial, sans-serif, apple color emoji, segoe ui emoji, segoe ui symbol as fallback options, and 1 additional.

4
unique font families
Primary font
lato, sans-serif

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

Detected Fonts

4 found

lato, sans-serif

276

Skip to content

pt serif, serif

8

Change your days.

-apple-system, blinkmacsystemfont, segoe ui, roboto, helvetica, arial, sans-serif, apple color emoji, segoe ui emoji, segoe ui symbol

6

We Value Your Privacy

arial

1

Close Cart

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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.