DNS Record Lookup

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

Hosting & Network

posthaven.com runs on AS40509, with DNS by AWS Route 53 and email via a transactional service.

Hosting network
AS40509AS40509
Managed DNS
AWS Route 53
Email
a transactional service
IPv6 (AAAA)
Enabled
CAA pinning
None

Sits alongside 4,209 other sites on AS40509. Stable here since we started watching (Aug 19, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to posthaven.com.

DNS Records for posthaven.com

HostnameTypeTTLPriorityContent
posthaven.comAAAA02a09:8280:1::3:3273
posthaven.comMX020mxb.mailgun.org
posthaven.comMX010mxa.mailgun.org
posthaven.comTXT0google-site-verification=wAqmhQdLV1WQLJjT3SNvbYg94X7NOLghVRg95xFjOLU
posthaven.comTXT0v=spf1 include:mailgun.org include:helpscoutemail.com ~all
posthaven.comNS0ns-1161.awsdns-17.org
posthaven.comNS0ns-836.awsdns-40.net
posthaven.comNS0ns-475.awsdns-59.com
posthaven.comNS0ns-1589.awsdns-06.co.uk
posthaven.comA0188.93.148.37
posthaven.comSOA86400ns-836.awsdns-40.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
www.posthaven.comMX020mxb.mailgun.org
www.posthaven.comMX010mxa.mailgun.org
www.posthaven.comSOA86400ns-836.awsdns-40.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
www.posthaven.comCNAME0posthaven.com
www.posthaven.comAAAA02a09:8280:1::3:3273
www.posthaven.comA0188.93.148.37
www.posthaven.comNS0ns-1589.awsdns-06.co.uk
www.posthaven.comNS0ns-475.awsdns-59.com
www.posthaven.comNS0ns-836.awsdns-40.net
www.posthaven.comNS0ns-1161.awsdns-17.org
www.posthaven.comTXT0google-site-verification=wAqmhQdLV1WQLJjT3SNvbYg94X7NOLghVRg95xFjOLU
www.posthaven.comTXT0v=spf1 include:mailgun.org include:helpscoutemail.com ~all

What's up with DNS →

Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.

Ask about posthaven.com

Beta

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

Get alerted the moment posthaven.com's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch posthaven.com 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.

Monitor DNS free

Free for your first domain: uptime, DNS, and certificate together. No credit card.

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