Open Authority Rating
numfocus.org
45/100
- Harmonic centrality rank
- #23,903
- PageRank rank
- #41,266
- Crawled hosts
- 12
- Crawl release
- cc-main-2026-jun-jul-aug
- Last computed
- Aug 31, 2026
Stronger than 99.98% of the 119,722,885 ranked domains (by harmonic centrality).
About this domain
- Registered
- Jan 9, 2012
- Registrar
- NameCheap, Inc.
- Registration expires
- Jan 9, 2029
- Hosting country
- US
- Hosting provider
- GOOGLE-CLOUD-PLATFORM
- IPv6
- no
- Email (MX)
- yes
- Nameservers
- pdns1.registrar-servers.com, pdns2.registrar-servers.com
- TLS certificate
- Let's Encrypt
- Certificate valid until
- Oct 12, 2026
- Homepage
- HTTP 200
- Page title
- NumFOCUS: A Nonprofit Supporting Open Code for Better Science
- Declared language
- en-us
Sources & freshness
- Registration: via rdap:rdap.publicinterestregistry.org, fetched Aug 30, 2026
- DNS: via doh, fetched Aug 30, 2026
- Hosting (IP→ASN): via iptoasn.com, fetched Aug 30, 2026
- TLS: via tls-handshake, fetched Aug 30, 2026
- Homepage: via homepage-fetch, fetched Aug 30, 2026
Facts we can’t prove are shown as unavailable — never estimated. Data refreshes roughly monthly.
OAR across crawl releases
| Crawl release | OAR |
|---|---|
| cc-main-2026-apr-may-jun | 46 |
| cc-main-2026-may-jun-jul | 44 |
| cc-main-2026-jun-jul-aug | 45 |
Dashed marks are crawl releases where numfocus.org wasn’t in the link graph; gaps are shown honestly, never interpolated.