Curious about the design behind selfdeterminationtheory.org?
SiteFontCheck scanned their live CSS architecture and identified 5 unique font families.
The website relies heavily on arial, open sans, sans-serif for its main text elements, paired with open sans, sans-serif and arial as fallback options, and 2 additional.
5
unique font families
Primary font
arial, open sans, sans-serif
Below is the precise map of font sizes, weights, and text elements used across their site.
Detected Fonts
5 foundarial, open sans, sans-serif
33
Nearly 800 researchers, practitioners, educators,
open sans, sans-serif
23
Skip to content
arial
2
Copyright © 2026 Self-Determination Theory. All ri
roboto
1
Partners & Supporters
roboto slab, serif
1
Notifications
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