hostmaster.koptein.de - robtex.com

hostmaster.koptein.de

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:acc🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:83b9🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.10.204Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.131.185🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.10.204, 172.67.131.185
IPv6 hints2606:4700:3034::6815:acc, 2606:4700:3036::ac43:83b9
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=254, name=cloudflare-ech.com

koptein.de

DNSSEC⚠️ Not signed
A2606:4700:3034::6815:acc🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::ac43:83b9🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.10.204Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.131.185🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSsharon.ns.cloudflare.com ⭐
NStrevor.ns.cloudflare.com
MXmail.protonmail.ch ⭐
MXmailsec.protonmail.ch(20)
TXTprotonmail-verification=918860f83bb1cd473b22d2a412dd03d12a4a5538
TXTv=spf1 include:_spf.protonmail.ch ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.10.204, 172.67.131.185
IPv6 hints2606:4700:3034::6815:acc, 2606:4700:3036::ac43:83b9
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=254, name=cloudflare-ech.com
SOAsharon.ns.cloudflare.comdns@cloudflare.com serial=2403059013

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.10.204172.67.131.1852606:4700:3034::6815:acc2606:4700:3036::ac43:83b9176.9.41.123
●A104.21.10.2042026-02-15 → 2026-05-09 · 3 obs
○ 2016-05-07 05:25:08
● 2026-02-15 20:37:00
● 2026-05-09 02:58:06
●A172.67.131.1852026-02-15 → 2026-05-09 · 3 obs
○ 2016-05-07 05:25:08
● 2026-02-15 20:37:00
● 2026-05-09 02:58:06
○A176.9.41.1232015-07-01 → 2016-05-07 · 4 obs
● 2015-07-01 18:17:14
● 2016-05-07 05:25:08
○ 2026-02-15 20:37:00
○ 2026-05-09 02:58:06
●A2606:4700:3034::6815:acc2026-02-15 → 2026-05-09 · 3 obs
○ 2016-05-07 05:25:08
● 2026-02-15 20:37:00
● 2026-05-09 02:58:06
●A2606:4700:3036::ac43:83b92026-02-15 → 2026-05-09 · 3 obs
○ 2016-05-07 05:25:08
● 2026-02-15 20:37:00
● 2026-05-09 02:58:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
koptein.detrevor.ns.cloudflare.com, sharon.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.221

NS records: trevor.ns.cloudflare.com, sharon.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for koptein.de (unsigned zone)

⏱️ Timing

Total: 852ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.131.185, 104.21.10.204
AAAA22606:4700:3034::6815:acc, 2606:4700:3036::ac43:83b9
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

hostmaster.koptein.de resolves to four IPs: 2606:4700:3034::6815:acc, 2606:4700:3036::ac43:83b9, 104.21.10.204 and 172.67.131.185.

Other host names, for instance dnjja.com, www.ruyada.com, ogsezr.guru, ilaf.co.il and granitewaveventures.com share IP numbers with hostmaster.koptein.de.