DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
irondns.net runs on AS8391, with email configured.
- Hosting network
- AS8391AS8391
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Enabled
- CAA pinning
- None
Sits alongside 2,812 other sites on AS8391. Stable here since we started watching (Jul 16, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to wwwa2s1.knipp.de.
DNS Records for irondns.net
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| irondns.net | MX | 0 | 10 | post.knipp.de |
| irondns.net | TXT | 0 | v=spf1 mx include:spf1.knipp.de include:spf2.knipp.de ~all | |
| irondns.net | TXT | 0 | _kwr88zrk5apt2262auww9kns968bho9 | |
| irondns.net | AAAA | 0 | 2a01:5b0:0:29::a4 | |
| irondns.net | A | 0 | 195.253.6.164 | |
| irondns.net | NS | 0 | anycast42.irondns.de | |
| irondns.net | NS | 0 | anycast30.irondns.net | |
| irondns.net | NS | 0 | anycast105.irondns.net | |
| irondns.net | SOA | 300 | anycast30.irondns.net dnsmaster.knipp.de 2023090502 14400 3600 2419200 300 | |
| www.irondns.net | A | 0 | 195.253.6.164 | |
| www.irondns.net | CNAME | 0 | wwwa2s1.knipp.de | |
| www.irondns.net | AAAA | 0 | 2a01:5b0:0:29::a4 |
Get alerted the moment irondns.net's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch irondns.net 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, CNAME, TXT 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