mail.linuxgnu.net - dns.ninja

mail.linuxgnu.net

DNSSEC⚠️ Not signed
A2a00:11c0:5f:4e33:8d5:99ff:fe37:1e00🇦🇹 netcup-AS2a00:11c0:5f::/48
A159.195.4.193🇩🇰 netcup-AS159.195.4.0/22

linuxgnu.net

DNSSEC⚠️ Not signed
A2606:4700:3032::ac43:8307🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3033::6815:9cf🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.9.207Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.131.7🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSkatelyn.ns.cloudflare.com ⭐
NSmaciej.ns.cloudflare.com
MXmail.linuxgnu.net ⭐
TXTgoogle-site-verification=ir0Mw22AoxWefpOLQssAQOcdBh8MsEGa18w-PT3qIO8
TXTv=spf1 ip4:159.195.4.193 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.9.207, 172.67.131.7
IPv6 hints2606:4700:3032::ac43:8307, 2606:4700:3033::6815:9cf
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=102, name=cloudflare-ech.com
SOAkatelyn.ns.cloudflare.comdns@cloudflare.com serial=2407576059

MX for

sbmc.dev
linuxgnu.net

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DNS History

2 records (2 active, 0 former)

A159.195.4.1932a00:11c0:5f:4e33:8d5:99ff:fe37:1e00
●A159.195.4.1932026-03-29 → 2026-07-04 · 2 obs
● 2026-03-29 21:41:50
● 2026-07-04 10:32:46
●A2a00:11c0:5f:4e33:8d5:99ff:fe37:1e002026-03-29 → 2026-07-04 · 2 obs
● 2026-03-29 21:41:50
● 2026-07-04 10:32:46

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
netf.gtld-servers.net, d.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net...-
linuxgnu.netkatelyn.ns.cloudflare.com, maciej.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.35.42

NS records: katelyn.ns.cloudflare.com, maciej.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for linuxgnu.net (unsigned zone)

⏱️ Timing

Total: 230ms | Queries: -

📄 Records

TypeCountSample Data
A1159.195.4.193
AAAA12a00:11c0:5f:4e33:8d5:99ff:fe37:1e00

Analysis

Mail Server Role

mail.linuxgnu.net is the mail server for sbmc.dev and linuxgnu.net.

IP Addresses

mail.linuxgnu.net resolves to the IP addresses 159.195.4.193 and 2a00:11c0:5f:4e33:8d5:99ff:fe37:1e00