DNS Record Lookup
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Hosting & Network
cal.org runs on Microsoft Azure, with email via Microsoft 365.
- Hosting network
- Microsoft AzureAS8075Microsoft Azure
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 161,633 other sites on Microsoft Azure. Stable here since we started watching (Aug 20, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for cal.org
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cal.org | A | 0 | 172.206.229.77 | |
| cal.org | MX | 0 | cal-org.mail.protection.outlook.com | |
| cal.org | NS | 0 | ns90.worldnic.com | |
| cal.org | NS | 0 | ns89.worldnic.com | |
| cal.org | SOA | 3600 | NS89.WORLDNIC.COM namehost.WORLDNIC.COM 126051409 10800 3600 604800 3600 | |
| cal.org | TXT | 0 | google-site-verification=hro1nEkImKam_fiy1BCmfQtWa6nUNShgQv1nFJ83vS8 | |
| cal.org | TXT | 0 | v=spf1 ip4:208.253.84.66 ip4:208.253.84.88 ip4:38.122.72.194 include:spf.protection.outlook.com include:autotask.net include:_spf.e2ma.net include:spf.etouches.com include:app.aventri.com ~all | |
| cal.org | TXT | 0 | MS=ms62393401 | |
| cal.org | TXT | 0 | e2ma-verification=ujxeb | |
| cal.org | TXT | 0 | HG2vYMVZD2B4GKZLiRk3/fYiq+w30IxmcuJ6aouSNXOF6bP4U5L80BmQ4D5FHjZsEG8rfPN0Nij0P4naopo+sg== | |
| cal.org | TXT | 0 | amazonses:xpF/ZD368nnDN5iVWbFGYr9mhZGG8nH/Ck2xPIQkEeY= | |
| cal.org | TXT | 0 | 80nlgnkdrphjfh0ogtbloefg2h | |
| cal.org | TXT | 0 | 2323219 | |
| www.cal.org | A | 0 | 172.206.229.77 |
Get alerted the moment cal.org's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch cal.org continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain