reactnative.dev
React Native · Learn once, write anywhere
- Body text
- Optimistic
- Headings
- Optimistic
Last checked Sep 23, 2026. Run this site and want it removed? Request an opt-out.
All text on the page
- Optimistic97%
- SF Mono3.4%
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- Served by
- Self-hosted
- Font files
- 93 KB
- Preloaded fonts
- 0
- Families declared
- 2 (1 never used)
- Platform
- Custom or unknown
- Font hosts
- reactnative.dev
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 crawlOptimistic
Every font face the page declares (2)
| Family as declared | Weights | Variable | Used |
|---|---|---|---|
| Optimistic Display | 300, 400, 500, 700 | No | Yes |
| National 2 | 500, 400 | No | No |