mail.kernel.eu - dns.ninja

mail.kernel.eu

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a755🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:5317🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.83.23Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.167.85🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.83.23, 172.67.167.85
IPv6 hints2606:4700:3030::ac43:a755, 2606:4700:3035::6815:5317
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com

kernel.eu

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a755🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::6815:5317🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.83.23Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.167.85🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSthomas.ns.cloudflare.com ⭐
NSwally.ns.cloudflare.com
MXmail.kernel.eu ⭐
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.83.23, 172.67.167.85
IPv6 hints2606:4700:3030::ac43:a755, 2606:4700:3035::6815:5317
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=127, name=cloudflare-ech.com
SOAthomas.ns.cloudflare.comdns@cloudflare.com serial=2408656578

MX for

kernel.eu

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DNS History

7 records (4 active, 3 former)

20162017201820192020202120222023202420252026A104.21.83.23172.67.167.852606:4700:3030::ac43:a7552606:4700:3035::6815:53172606:4700:3031::6815:53172606:4700:3033::ac43:a7555.9.40.102
●A104.21.83.232026-03-10 → 2026-07-24 · 3 obs
○ 2016-07-11 23:00:02
● 2026-03-10 07:32:38
● 2026-07-24 06:37:14
●A172.67.167.852026-03-10 → 2026-07-24 · 3 obs
○ 2016-07-11 23:00:02
● 2026-03-10 07:32:38
● 2026-07-24 06:37:14
●A2606:4700:3030::ac43:a7552026-07-04 → 2026-07-24 · 3 obs
○ 2026-03-10 07:32:38
● 2026-07-04 11:17:20
● 2026-07-24 06:37:14
○A2606:4700:3031::6815:53172026-03-10 → 2026-03-10 · 4 obs
○ 2016-07-11 23:00:02
● 2026-03-10 07:32:38
○ 2026-07-04 11:17:20
○ 2026-07-24 06:37:14
○A2606:4700:3033::ac43:a7552026-03-10 → 2026-03-10 · 4 obs
○ 2016-07-11 23:00:02
● 2026-03-10 07:32:38
○ 2026-07-04 11:17:20
○ 2026-07-24 06:37:14
●A2606:4700:3035::6815:53172026-07-04 → 2026-07-24 · 3 obs
○ 2026-03-10 07:32:38
● 2026-07-04 11:17:20
● 2026-07-24 06:37:14
○A5.9.40.1022015-05-13 → 2016-07-11 · 4 obs
● 2015-05-13 08:20:32
● 2016-07-11 23:00:02
○ 2026-03-10 07:32:38
○ 2026-07-24 06:37:14

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
euw.dns.eu, x.dns.eu, y.dns.eu, be.dns.eu...-
kernel.euwally.ns.cloudflare.com, thomas.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.239

NS records: wally.ns.cloudflare.com, thomas.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for kernel.eu (unsigned zone)

⏱️ Timing

Total: 344ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.83.23, 172.67.167.85
AAAA22606:4700:3030::ac43:a755, 2606:4700:3035::6815:5317
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

Mail Server Role

Mail for kernel.eu is routed through the mail server mail.kernel.eu.

IP Addresses

mail.kernel.eu points to the four IP addresses 104.21.83.23, 172.67.167.85, 2606:4700:3030::ac43:a755 and 2606:4700:3035::6815:5317.

bch.care, badcasserole.com, frifran.com plus two other host names have IP numbers in common with mail.kernel.eu.