simulithic.com
Simulithic — Catch what breaks before your users do
- Body text
- Instrument Sans
- Headings
- Instrument Serif
Last checked Sep 23, 2026. Run this site and want it removed? Request an opt-out.
All text on the page
- Instrument Sans84%
- Instrument Serif5.8%
- Geist4.4%
- Geist Mono3.6%
- IBM Plex Mono2.4%
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- Served by
- Self-hosted
- Font files
- 288 KB
- Preloaded fonts
- 7
- Families declared
- 10 (5 never used)
- Platform
- Next.js
- Font hosts
- app.cal.com, www.simulithic.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 crawlInstrument Sansheadings Instrument Serif
Every font face the page declares (10)
| Family as declared | Weights | Variable | Used |
|---|---|---|---|
| Geist | 500, 600 | No | Yes |
| Geist Fallback | 400 | No | No |
| Geist Mono | 400, 500 | No | Yes |
| Geist Mono Fallback | 400 | No | No |
| Instrument Sans | 400 700 | Yes | Yes |
| Instrument Sans Fallback | 400 | No | No |
| Instrument Serif | 400 | No | Yes |
| Instrument Serif Fallback | 400 | No | No |
| IBM Plex Mono | 400, 500 | No | Yes |
| IBM Plex Mono Fallback | 400 | No | No |