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Hosting & Network
arm.gov runs on AS50, with email via Proofpoint.
- Hosting network
- AS50AS50
- Managed DNS
- Self-hosted / other
- Proofpoint
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 28 other sites on AS50. Stable here since we started watching (Aug 28, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to arm.gov.
DNS Records for arm.gov
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| arm.gov | SOA | 3600 | pdns.vsn.arm.gov armcrf.arm.gov 2026090333 180 600 2592000 3600 | |
| arm.gov | NS | 0 | adns2.es.net | |
| arm.gov | NS | 0 | adns1.es.net | |
| arm.gov | TXT | 0 | apple-domain-verification=QiKwVtuRiioX1ii0 | |
| arm.gov | TXT | 0 | C423D73D54B7F4DB75E0AB4532CE8588 | |
| arm.gov | TXT | 0 | v=spf1 include:spf.arm.gov include:servers.mcsv.net include:spf.ornl.gov include:spf.protection.outlook.com -all | |
| arm.gov | A | 0 | 128.219.248.106 | |
| arm.gov | MX | 0 | 10 | mxa-00689501.gslb.gpphosted.com |
| arm.gov | MX | 0 | 10 | mxb-00689501.gslb.gpphosted.com |
| www.arm.gov | SOA | 3600 | pdns.vsn.arm.gov armcrf.arm.gov 2026090333 180 600 2592000 3600 | |
| www.arm.gov | CNAME | 0 | arm.gov | |
| www.arm.gov | TXT | 0 | C423D73D54B7F4DB75E0AB4532CE8588 | |
| www.arm.gov | TXT | 0 | apple-domain-verification=QiKwVtuRiioX1ii0 | |
| www.arm.gov | TXT | 0 | v=spf1 include:spf.arm.gov include:servers.mcsv.net include:spf.ornl.gov include:spf.protection.outlook.com -all | |
| www.arm.gov | MX | 0 | 10 | mxa-00689501.gslb.gpphosted.com |
| www.arm.gov | MX | 0 | 10 | mxb-00689501.gslb.gpphosted.com |
| www.arm.gov | NS | 0 | adns1.es.net | |
| www.arm.gov | NS | 0 | adns2.es.net | |
| www.arm.gov | A | 0 | 128.219.248.106 |
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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