July 2026 cohort / Productivity
Sphinx
OnlineA Chrome extension that blocks distracting websites until users solve a math or coding puzzle.
- Status
- Onlinesince Nov 5, 2026
- First launched
- Jul 8, 2026
- Category
- Productivity
- Type
- Browser extension
- Pricing
- Free
- Domain
- sphinx.fyi
Last 30 days
100% of checks answered · median response 1,083 ms
- Oct 8, 2026: Not checked
- Oct 9, 2026: Not checked
- Oct 10, 2026: Not checked
- Oct 11, 2026: Not checked
- Oct 12, 2026: Not checked
- Oct 13, 2026: Not checked
- Oct 14, 2026: Not checked
- Oct 15, 2026: Not checked
- Oct 16, 2026: Not checked
- Oct 17, 2026: Not checked
- Oct 18, 2026: Not checked
- Oct 19, 2026: Not checked
Domain and certificate
- Registrar
- NameCheap, Inc.
- Registered
- Jun 9, 2026 · 29 days before launch
- Renewal due
- Jun 9, 2027 · in 7 months
- DNS
- Cloudflare
- HTTPS certificate
- valid to Feb 1, 2027 · 3 months left
Registration data for sphinx.fyi from the registry's public RDAP service, looked up Nov 5, 2026.
History
Launched
Online
· online
- Last checked Nov 5, 2026
Alternatives to Sphinx
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