mail.nulldev.org - dns.ninja

mail.nulldev.org

DNSSEC⚠️ Not signed
A2a01:4f8:1c0c:56a8::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
PTRmail.nulldev.org
A157.90.173.247🇩🇪 Hetzner157.90.0.0/16 HETZNER-DC
TXTv=spf1 a mx a:mail.nulldev.org a:nulldev.org ip4:176.9.117.126 ip6:2a01:4f8:1...

nulldev.org

DNSSEC🔒 Signed (DS record present)
A2a01:4f8:151:7147::2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK
A176.9.117.126🇩🇪 Hetzner176.9.0.0/16 HETZNER-RZ-FKS-BLK4
NSdns1.registrar-servers.com ⭐
NSdns2.registrar-servers.com
MXmail.nulldev.org ⭐
TXTopenai-domain-verification=dv-eJZlLwSPqACBWahphRonn9Nl
TXTgoogle-site-verification=9DhwjtaLeVmga4a9E6OikalETenxWEuVG9KqAjkmUAY
TXTv=spf1 a mx a:mail.nulldev.org a:nulldev.org ip4:176.9.117.126 ip6:2a01:4f8:1...
SOAdns1.registrar-servers.comhostmaster@registrar-servers.com serial=1784518663
🔒 HSTS Preload (+subdomains)

PTR for

1.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.a.6.5.c.0.c.1.8.f.4.0.1.0.a.2.ip6.arpa
247.173.90.157.in-addr.arpa

MX for

nulldev.org

Same first word

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DNS History

2 records (2 active, 0 former)

A157.90.173.2472a01:4f8:1c0c:56a8::1
●A157.90.173.2472026-02-17 → 2026-07-24 · 2 obs
● 2026-02-17 10:54:50
● 2026-07-24 09:50:38
●A2a01:4f8:1c0c:56a8::12026-02-17 → 2026-07-24 · 2 obs
● 2026-02-17 10:54:50
● 2026-07-24 09:50:38

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org-
nulldev.orgdns2.registrar-servers.com, dns1.registrar-servers.com-

✅ Authoritative Response

Server:156.154.133.200

NS records: dns2.registrar-servers.com, dns1.registrar-servers.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 328ms | Queries: -

📄 Records

TypeCountSample Data
A1157.90.173.247
AAAA12a01:4f8:1c0c:56a8::1
TXT1v=spf1 a mx a:mail.nulldev.org a:nulldev

Analysis

Mail Server Role

The mail server mail.nulldev.org processes email for nulldev.org.

IP Addresses

mail.nulldev.org resolves to the IP addresses 157.90.173.247 and 2a01:4f8:1c0c:56a8::1