admin.opticert.de - robtex.com

admin.opticert.de

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:8d93🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:2ec2🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.194Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.141.147🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.46.194, 172.67.141.147
IPv6 hints2606:4700:3035::ac43:8d93, 2606:4700:3037::6815:2ec2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=186, name=cloudflare-ech.com

opticert.de

DNSSEC⚠️ Not signed
A2606:4700:3035::ac43:8d93🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3037::6815:2ec2🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.46.194Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.141.147🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSbuck.ns.cloudflare.com ⭐
NStina.ns.cloudflare.com
MXmail.opticert.de ⭐
TXTgoogle-site-verification=Hnt7_rj_5htwG1a6Y4myFAGKFI6QsKbZRu_0M8Vbb7U
TXTv=spf1 include:spf.mailjet.com include:secure-mailgate.com ip4:80.157.83.107 ...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.46.194, 172.67.141.147
IPv6 hints2606:4700:3035::ac43:8d93, 2606:4700:3037::6815:2ec2
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=186, name=cloudflare-ech.com
SOAbuck.ns.cloudflare.comdns@cloudflare.com serial=2398816074

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DNS History

4 records (4 active, 0 former)

A104.21.46.194172.67.141.1472606:4700:3035::ac43:8d932606:4700:3037::6815:2ec2
●A104.21.46.1942026-03-10 → 2026-04-15 · 2 obs
● 2026-03-10 01:24:42
● 2026-04-15 01:35:22
●A172.67.141.1472026-03-10 → 2026-04-15 · 2 obs
● 2026-03-10 01:24:42
● 2026-04-15 01:35:22
●A2606:4700:3035::ac43:8d932026-03-10 → 2026-04-15 · 2 obs
● 2026-03-10 01:24:42
● 2026-04-15 01:35:22
●A2606:4700:3037::6815:2ec22026-03-10 → 2026-04-15 · 2 obs
● 2026-03-10 01:24:42
● 2026-04-15 01:35:22

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
dea.nic.de, f.nic.de, z.nic.de-
opticert.debuck.ns.cloudflare.com, tina.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.192.230

NS records: buck.ns.cloudflare.com, tina.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opticert.de (unsigned zone)

⏱️ Timing

Total: 508ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.46.194, 172.67.141.147
AAAA22606:4700:3037::6815:2ec2, 2606:4700:3035::ac43:8d93
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

admin.opticert.de resolves to four IP numbers: 2606:4700:3035::ac43:8d93, 2606:4700:3037::6815:2ec2, 104.21.46.194 and 172.67.141.147.

Other host names such as cswachter.com, www.raspikidd.com, theme5s.com, okbb.io and kra98.cc share IPs with admin.opticert.de.