DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
skyserver.org runs on AS5723, with email configured.
- Hosting network
- AS5723AS5723
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 107 other sites on AS5723. Stable here since we started watching (Aug 29, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to websites.sdss.org.
DNS Records for skyserver.org
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| skyserver.org | TXT | 0 | 5DBB533534A9960359453E6D1366B534 | |
| skyserver.org | A | 0 | 128.220.122.33 | |
| skyserver.org | NS | 0 | ens1.jhmi.edu | |
| skyserver.org | NS | 0 | ens1.jhu.edu | |
| skyserver.org | MX | 0 | 5 | skysrv.pha.jhu.edu |
| skyserver.org | SOA | 900 | ens1.jhu.edu request.pha.jhu.edu 2008114018 10800 3600 2419200 900 | |
| www.skyserver.org | CNAME | 0 | websites.sdss.org | |
| www.skyserver.org | A | 0 | 128.220.122.33 |
Get alerted the moment skyserver.org's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch skyserver.org 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