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Hosting & Network
isd21.mb.ca runs on AS16796, with email via Microsoft 365.
- Hosting network
- AS16796AS16796
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 120 other sites on AS16796. Stable here since we started watching (Jul 28, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for isd21.mb.ca
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| isd21.mb.ca | SOA | 3600 | dns1.merlin.mb.ca domreg.merlin.mb.ca 2025102001 3600 1800 604800 3600 | |
| isd21.mb.ca | A | 0 | 198.163.152.144 | |
| isd21.mb.ca | MX | 0 | 10 | isd21-mb-ca.mail.protection.outlook.com |
| isd21.mb.ca | NS | 0 | dns2.merlin.mb.ca | |
| isd21.mb.ca | NS | 0 | dns1.merlin.mb.ca | |
| isd21.mb.ca | TXT | 0 | k942pufs0jgeiktl585o9buerv | |
| isd21.mb.ca | TXT | 0 | uj57ce7krqbblvtsegjobiu3sj | |
| isd21.mb.ca | TXT | 0 | autodesk-domain-verification=p91l6wJFXRiOrOsXlCmz | |
| isd21.mb.ca | TXT | 0 | apple-domain-verification=2aQMTQkTJiqfBEj2 | |
| isd21.mb.ca | TXT | 0 | adobe-idp-site-verification=e41b6f0c09d26938bbee0658975df63864c48f8ae02c4fa1868c4750dfbadb52 | |
| isd21.mb.ca | TXT | 0 | MS=ms84792756 | |
| isd21.mb.ca | TXT | 0 | eipbjgtigdfu11spn37iiiba2i | |
| isd21.mb.ca | TXT | 0 | hvmj0sm3vg4tc8vc31rd75r22c | |
| isd21.mb.ca | TXT | 0 | v=spf1 ip4:216.73.64.74 ip4:216.73.78.26 a:exchange.isd21.mb.ca mx:exchange.isd21.mb.ca include:customerspf.schoolmessenger.com include:spf.protection.outlook.com -all | |
| www.isd21.mb.ca | A | 0 | 198.163.152.144 |
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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