DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
cio.gov runs on AS16524.
- Hosting network
- AS16524AS16524
- Managed DNS
- Self-hosted / other
- None
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 46 other sites on AS16524. Stable here since we started watching (Jul 22, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for cio.gov
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| cio.gov | A | 0 | 159.142.191.107 | |
| cio.gov | NS | 0 | dns5.gsa.gov | |
| cio.gov | NS | 0 | dns2.gsa.gov | |
| cio.gov | NS | 0 | dns3.gsa.gov | |
| cio.gov | NS | 0 | dns.gsa.gov | |
| cio.gov | NS | 0 | dns4.gsa.gov | |
| cio.gov | TXT | 0 | _wys82nyzpgjt8vad5q7pe4vgpgp8kh9 | |
| cio.gov | TXT | 0 | v=spf1 include:spf_sa.gsa.gov -all | |
| cio.gov | TXT | 0 | _y75jga5owivhjguyr7bsz43t90sd23t | |
| cio.gov | SOA | 3600 | dns.gsa.gov hostmaster.gsa.gov 803679345 3600 180 1209600 3600 | |
| www.cio.gov | A | 0 | 159.142.191.107 |
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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
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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