DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
xs4.us runs on AS34427, with email configured.
- Hosting network
- AS34427AS34427
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 102 other sites on AS34427. Stable here since we started watching (Jul 26, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for xs4.us
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| xs4.us | TXT | 0 | _jz70dot3nzmxqbxy4ijw4vfn7cw0v51 | |
| xs4.us | TXT | 0 | 'v=spf1 mx include:spf.protection.outlook.com -all' MS=ms64216154 | |
| xs4.us | SOA | 10800 | ns1.comsenso.com registry.comsenso.com 2026100522 86400 7200 2419200 10800 | |
| xs4.us | A | 0 | 77.87.163.165 | |
| xs4.us | MX | 0 | 10 | mail1.comsenso.com |
| xs4.us | NS | 0 | ns3.comsenso.com | |
| xs4.us | NS | 0 | ns2.comsenso.com | |
| xs4.us | NS | 0 | ns1.comsenso.com | |
| www.xs4.us | A | 0 | 77.87.163.165 |
Get alerted the moment xs4.us's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch xs4.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