duolingo.com
Duolingo - The world’s most popular way to learn
- Body text
- Duolingo Sans
- Headings
- Feather
Last checked Sep 23, 2026. Run this site and want it removed? Request an opt-out.
All text on the page
- Duolingo Sans93%
- Feather6.7%
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- Served by
- Google Fonts, Self-hosted
- Font files
- 204 KB
- Preloaded fonts
- 0
- Families declared
- 15 (13 never used)
- Platform
- Custom or unknown
- Font hosts
- d35aaqx5ub95lt.cloudfront.net, fonts.gstatic.com
History
Each row is a stretch of time where the fonts stayed the same. Rows marked Web archive are estimates from saved copies of the page and less reliable than our own crawl.
- Sep 23, 2026Our crawlDuolingo Sansheadings Feather
- Nov 15, 2016 to Feb 15, 2019Web archiveMuseo Sans Rounded
Every font face the page declares (15)
| Family as declared | Weights | Variable | Used |
|---|---|---|---|
| KaTeX_AMS | 400 | No | No |
| KaTeX_Caligraphic | 700, 400 | No | No |
| KaTeX_Fraktur | 700, 400 | No | No |
| KaTeX_Main | 700, 400 | No | No |
| KaTeX_Math | 700, 400 | No | No |
| KaTeX_SansSerif | 700, 400 | No | No |
| KaTeX_Script | 400 | No | No |
| KaTeX_Size1 | 400 | No | No |
| KaTeX_Size2 | 400 | No | No |
| KaTeX_Size3 | 400 | No | No |
| KaTeX_Size4 | 400 | No | No |
| KaTeX_Typewriter | 400 | No | No |
| duolingo-sans | 700, 400 | No | Yes |
| feather | 700 | No | Yes |
| Noto Sans Math | 400 | No | No |