opensource.cern
SPF only
CERN - European Organization for Nuclear Research Microsoft 365
DNS, hosting, email and name analysis are live. Registration data, the home-page probe, the archive lookup and the other-TLD check are being fetched in the background; this page refreshes itself in a few seconds.
Registration
Fetching the registry record…
DNS
| Type | Value |
|---|---|
| NS | ext-dns-1.cern.ch · ext-dns-2.cern.ch |
| A | 137.138.226.190 |
| AAAA | 2001:1458:201:4::100:324 |
| MX | 10 opensource-cern.mail.protection.outlook.com |
| TXT | v=spf1 include:spf.cern.ch -all |
| TXT | MS=ms34046962 |
| TXT | v=DMARC1; p=quarantine; sp=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1 |
| SOA | ext-dns-1.cern.ch external-dns.cern.ch serial 2026091104 |
Certificates
No certificate for this domain has passed through the logs dot.bi follows since it started watching. Older certificates are not back-filled.
Hosting
- IP
- 137.138.226.190
- Network
- AS513 · CERN - CERN - European Organization for Nuclear Research, CH
- Provider
- CERN - European Organization for Nuclear Research
- Country
- CH (network registration, not server location)
- CDN
- none detected
- IPv6
- yes
Web
Probing the home page…
SPF only SPF is published but there is no DMARC policy.
- Provider
- Microsoft 365
- SPF
- present all: fail
- DMARC
- missing
- DKIM
- found selector: selector1
Age
- First capture
- looking up…
- Years archived
- —
- Registry created
- —
- In dot.bi since
- 2026-10-13 · Zone file
Name analysis
Same name, other TLDs
Checking the same name on other TLDs…