DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
tunnelbuilder.com 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 4,999+ other sites on Microsoft Azure. Stable here since we started watching (Jul 16, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to tunnelbuilder.com.
DNS Records for tunnelbuilder.com
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| tunnelbuilder.com | A | 0 | 51.11.187.219 | |
| tunnelbuilder.com | MX | 0 | tunnelbuilder-com.mail.protection.outlook.com | |
| tunnelbuilder.com | NS | 0 | ns3.bdm.microsoftonline.com | |
| tunnelbuilder.com | NS | 0 | ns1.bdm.microsoftonline.com | |
| tunnelbuilder.com | NS | 0 | ns4.bdm.microsoftonline.com | |
| tunnelbuilder.com | NS | 0 | ns2.bdm.microsoftonline.com | |
| tunnelbuilder.com | TXT | 0 | mscid=frhnZM0rOpwXhWiFxW/GKe2eChDXZugjD/m54Ac6Zn9RQsc3gvcV/JHNHzFPQYIhkidQwIN5eFFtmm9xYrS5xg== | |
| tunnelbuilder.com | TXT | 0 | v=spf1 include:spf.protection.outlook.com -all | |
| tunnelbuilder.com | TXT | 0 | google-site-verification=5edocQMTys6b8tgWQC2Ztscurzx0aYRV4GVnvQhJrnQ | |
| tunnelbuilder.com | TXT | 0 | MS=ms29631916 | |
| tunnelbuilder.com | SOA | 300 | ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300 | |
| www.tunnelbuilder.com | CNAME | 0 | tunnelbuilder.com | |
| www.tunnelbuilder.com | NS | 0 | ns2.bdm.microsoftonline.com | |
| www.tunnelbuilder.com | NS | 0 | ns4.bdm.microsoftonline.com | |
| www.tunnelbuilder.com | NS | 0 | ns3.bdm.microsoftonline.com | |
| www.tunnelbuilder.com | NS | 0 | ns1.bdm.microsoftonline.com | |
| www.tunnelbuilder.com | A | 0 | 51.11.187.219 | |
| www.tunnelbuilder.com | TXT | 0 | MS=ms29631916 | |
| www.tunnelbuilder.com | TXT | 0 | google-site-verification=5edocQMTys6b8tgWQC2Ztscurzx0aYRV4GVnvQhJrnQ | |
| www.tunnelbuilder.com | TXT | 0 | v=spf1 include:spf.protection.outlook.com -all | |
| www.tunnelbuilder.com | TXT | 0 | mscid=frhnZM0rOpwXhWiFxW/GKe2eChDXZugjD/m54Ac6Zn9RQsc3gvcV/JHNHzFPQYIhkidQwIN5eFFtmm9xYrS5xg== | |
| www.tunnelbuilder.com | SOA | 300 | ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300 | |
| www.tunnelbuilder.com | MX | 0 | tunnelbuilder-com.mail.protection.outlook.com |
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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