DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
usacorp.us runs on AS19151, with email configured.
- Hosting network
- AS19151AS19151
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 457 other sites on AS19151. Stable here since we started watching (Jul 26, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to usacorp.us.
DNS Records for usacorp.us
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| usacorp.us | MX | 0 | mx.usacorp.us.cust.b.hostedemail.com | |
| usacorp.us | TXT | 0 | v=spf1 mx ip4:64.98.42.0/24 ip4:64.98.36.17 ip4:64.98.36.15 include:registrarmail.net include:_spf.hostedemail.com ~all | |
| usacorp.us | A | 0 | 64.135.42.105 | |
| usacorp.us | SOA | 60 | ns1.systemdns.com hostmaster.systemdns.com 1738970076 604800 86400 300 60 | |
| usacorp.us | NS | 0 | ns1.systemdns.com | |
| usacorp.us | NS | 0 | ns2.systemdns.com | |
| usacorp.us | NS | 0 | ns3.systemdns.com | |
| www.usacorp.us | TXT | 0 | v=spf1 mx ip4:64.98.42.0/24 ip4:64.98.36.17 ip4:64.98.36.15 include:registrarmail.net include:_spf.hostedemail.com ~all | |
| www.usacorp.us | SOA | 60 | ns1.systemdns.com hostmaster.systemdns.com 1738970076 604800 86400 300 60 | |
| www.usacorp.us | MX | 0 | mx.usacorp.us.cust.b.hostedemail.com | |
| www.usacorp.us | CNAME | 0 | usacorp.us | |
| www.usacorp.us | A | 0 | 64.135.42.105 | |
| www.usacorp.us | NS | 0 | ns1.systemdns.com | |
| www.usacorp.us | NS | 0 | ns2.systemdns.com | |
| www.usacorp.us | NS | 0 | ns3.systemdns.com |
Get alerted the moment usacorp.us's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch usacorp.us 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