DNS Record Lookup

Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain

Hosting & Network

ersrail.com runs on AS51423, with email via Microsoft 365.

Hosting network
AS51423AS51423
Managed DNS
Self-hosted / other
Email
Microsoft 365
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 544 other sites on AS51423. Stable here since we started watching (Oct 26, 2026).

The apex and www are the same hosting — the apex via A records.

DNS Records for ersrail.com

HostnameTypeTTLPriorityContent
ersrail.comA0213.133.224.203
ersrail.comNS0ns1.helden.domains
ersrail.comNS0ns3.helden.domains
ersrail.comNS0ns4.helden.domains
ersrail.comNS0ns2.helden.domains
ersrail.comMX0ersrail-com.mail.protection.outlook.com
ersrail.comSOA3600ns1.helden.domains do-not-reply.ersrail.com 2026100702 43200 7200 1209600 3600
ersrail.comTXT0cisco-ci-domain-verification=51faba737d003b5d56844c070923f5054b967eff1c2af8560b1abb36ab10f9d8
ersrail.comTXT0atlassian-domain-verification=1SlOvq2OLrGvSSnI89V8xE2SE/TRwdMManUeYdPdTF254WaiT0alFUJPfD9Ld52m
ersrail.comTXT0v=spf1 include:spf-de.emailsignatures365.com include:spf.protection.outlook.com include:spf.mailjet.com ip4:212.243.70.23 ip4:212.243.70.24 ip4:212.243.70.112 ip4:212.243.70.83 -all
ersrail.comTXT0atlassian-sending-domain-verification=b47c682f-9d35-43a3-93b7-4c41943e5b65
ersrail.comTXT0atlassian-domain-verification=Piswz1lJya/uaVEX280j4HI4XOnkgGXR7XR/cFKGr1CD6qfayQqNZqdjyvbpGGpa
www.ersrail.comA0213.133.224.203

Get alerted the moment ersrail.com's DNS changes

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DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

Uptime

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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.

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Beta

Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

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