mail.mattech.de - robtex.com

mail.mattech.de

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:253f🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:cd0b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.37.63Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.205.11🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.37.63, 172.67.205.11
IPv6 hints2606:4700:3034::6815:253f, 2606:4700:3034::ac43:cd0b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=218, name=cloudflare-ech.com

mattech.de

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:253f🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::ac43:cd0b🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.37.63Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.205.11🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSharmony.ns.cloudflare.com ⭐
NSstan.ns.cloudflare.com
MXsmtp1.byte.nl ⭐
MXsmtp2.byte.nl(20)
TXTv=spf1 ip4:135.181.112.161 ip6:2a01:4f9:4b:189e::2 include:spf.byte.nl includ...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.37.63, 172.67.205.11
IPv6 hints2606:4700:3034::6815:253f, 2606:4700:3034::ac43:cd0b
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=218, name=cloudflare-ech.com
SOAharmony.ns.cloudflare.comdns@cloudflare.com serial=2403733925

Previously MX for

mattech.de

Same first word

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DNS History

6 records (4 active, 2 former)

20162017201820192020202120222023202420252026A104.21.37.63172.67.205.112606:4700:3034::6815:253f2606:4700:3034::ac43:cd0b194.60.207.18346.21.228.130
●A104.21.37.632026-05-09 → 2026-05-14 · 3 obs
○ 2026-05-01 17:12:32
● 2026-05-09 08:13:08
● 2026-05-14 03:31:20
●A172.67.205.112026-05-09 → 2026-05-14 · 3 obs
○ 2026-05-01 17:12:32
● 2026-05-09 08:13:08
● 2026-05-14 03:31:20
○A194.60.207.1832015-06-18 → 2015-10-29 · 4 obs
● 2015-06-18 01:50:32
● 2015-10-29 12:04:22
○ 2016-01-19 01:14:46
○ 2026-05-14 03:31:20
●A2606:4700:3034::6815:253f2026-05-09 → 2026-05-14 · 3 obs
○ 2026-05-01 17:12:32
● 2026-05-09 08:13:08
● 2026-05-14 03:31:20
●A2606:4700:3034::ac43:cd0b2026-05-09 → 2026-05-14 · 3 obs
○ 2026-05-01 17:12:32
● 2026-05-09 08:13:08
● 2026-05-14 03:31:20
○A46.21.228.1302026-02-15 → 2026-05-01 · 5 obs
○ 2016-01-19 01:14:46
● 2026-02-15 10:32:38
● 2026-05-01 17:12:32
○ 2026-05-09 08:13:08
○ 2026-05-14 03:31:20

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
mattech.destan.ns.cloudflare.com, harmony.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.59.235

NS records: stan.ns.cloudflare.com, harmony.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mattech.de (unsigned zone)

⏱️ Timing

Total: 2301ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.205.11, 104.21.37.63
AAAA22606:4700:3034::ac43:cd0b, 2606:4700:3034::6815:253f
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.mattech.de points to four IP numbers: 2606:4700:3034::6815:253f, 2606:4700:3034::ac43:cd0b, 104.21.37.63 and 172.67.205.11.

Other host names, for instance polikarbonat02.ru, www.nv(0x68656e746169).com, enterpriseevolveai.digital, alzct.org and gadgetfiles.com share IP numbers with mail.mattech.de.