SiteFontCheck

No extension free font checker analyzer for modern web design

Check fonts on popular websites

Fonts used by

backbonejs.org

Last analyzed 10/30/2026, 12:09:36 PM UTC

Curious about the design behind backbonejs.org?

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

The website relies heavily on helvetica neue, helvetica, arial for its main text elements, paired with lucida grande, lucida sans unicode, helvetica, arial, sans-serif and monaco, consolas, lucida console, monospace as fallback options, and 1 additional.

4
unique font families
Primary font
helvetica neue, helvetica, arial

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

Detected Fonts

4 found

helvetica neue, helvetica, arial

1397

Backbone.js gives structure to web applications

lucida grande, lucida sans unicode, helvetica, arial, sans-serif

339

Backbone.js

monaco, consolas, lucida console, monospace

185

var Books = Backbone.Collection.extend({ url: '/

helvetica neue, helvetica, arial, sans-serif

3

Development Version (1.6.0)

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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.