c5dk.dk
Last scanned: 2026-08-26 11:51:13  ·  7349ms total
⬇ Zone File 📜 Record History ⚡ Scan Now
🖥️ Nameservers2 records   94ms
NameserverIP addressesPTRASN / ISP
ns1.concrete5danmark.dk 88.99.120.238 ns1.dnshotel.dk AS24940 Hetzner Online GmbH
ns2.concrete5danmark.dk 94.130.170.39 ns2.dnshotel.dk AS24940 Hetzner Online GmbH
🌍 A Records1 records   1227ms
IPTTLPTRASNISP / OrgCIDRCountryCity
138.201.255.81 359s server.concrete5danmark.dk AS24940 Hetzner Online GmbH 138.201.0.0/16 🇩🇪 Germany Falkenstein
📧 MX Records1 records   86ms
PriorityTTLMail ServerIP addressesPTRASN
0 360s c5dk.dk 138.201.255.81
2a01:4f8:173:2652::1		 server.concrete5danmark.dk
server.concrete5danmark.dk		 AS24940 Hetzner Online GmbH
AS24940 Hetzner Online GmbH
🔷 AAAA Records (IPv6)1 records   97ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2a01:4f8:173:2652::1 14400s server.concrete5danmark.dk AS24940 Hetzner Online GmbH 2a01:4f8:0:0:0:0:0:0/31 🇩🇪 Germany Falkenstein
🔐 HTTPS Records
✗ No HTTPS RR — no SVCB/HTTPS service binding
📝 TXT Records1 records   1514ms
TXT Record
v=spf1 ip4:138.201.255.81 include:spf.azehosting.net +a +mx +ip4:159.100.183.187 include:relays.webhost-mail.com include:relay.mailchannels.net ~all
✉️ SPF
PolicyRecord (c5dk.dk)
~all (soft fail) v=spf1 ip4:138.201.255.81 include:spf.azehosting.net +a +mx +ip4:159.100.183.187 include:relays.webhost-mail.com include:relay.mailchannels.net ~all
📨 DMARC
✗ No DMARC record — mail spoofing not restricted
📬 MTA-STS
✗ No MTA-STS policy — SMTP TLS not enforced
📈 TLSRPT
✗ No TLSRPT record — no SMTP TLS failure reporting
📜 CAA Records
✗ No CAA records — any CA may issue certificates
🔏 ACME Challenge
TypeNameValue
TXT _acme-challenge.c5dk.dk pCXNrhrbU-xXPMN2ix7h2SCfmddsBczAhQmuhMts9QM
🔗 TLSA / DANE
✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)
🔐 DNSSEC1257ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer
🏷️ SOA0ms
FieldValue
Serial2026061303
Primary NS (MNAME)ns1.concrete5danmark.dk
Responsible (RNAME)server-admin@azehosting.net
Refresh3600s
Retry1800s
Expire1209600s
Minimum (neg-cache TTL)86400s
📋 Registration
✗ No registration data — collected automatically when SOA serial changes
📋 WHOIS
⏱️ Lookup Timing
NS
94ms
A
1227ms
MX
86ms
AAAA
97ms
TXT
1514ms
CAA
101ms
HTTPS
94ms
TLSA
94ms
SOA
0ms
MTA-STS
1237ms
DNSSEC
1257ms
SRV
1225ms
Total
7349ms
🕐 Scan History
Scanned AtDurationRecordsDNSSEC
2026-08-26 11:51:13 7349ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-24 22:10:42 713ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-21 20:40:10 4945ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-16 17:02:12 3322ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-15 05:38:30 8689ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-11 08:59:10 10308ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-09 10:45:46 4624ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-08-06 00:41:43 1108ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-28 08:04:43 28820ms 2 NS 0 A 0 MX ❓ Unknown View
2026-07-27 07:31:05 1690ms 2 NS 1 A 1 MX ❓ Unknown View
2026-07-26 06:41:49 1531ms 2 NS 1 A 1 MX ❓ Unknown View
2026-07-25 06:27:58 1016ms 2 NS 1 A 1 MX ❓ Unknown View
2026-07-16 13:04:34 8641ms 2 NS 1 A 1 MX ❓ Unknown View
2026-07-15 06:31:21 6661ms 2 NS 1 A 1 MX ❓ Unknown View
2026-07-10 01:13:29 8520ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-08 21:48:16 1033ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-04 14:59:21 6949ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-07-03 04:28:04 1946ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-26 07:48:54 1034ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-24 13:42:17 708ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 18:47:09 737ms 2 NS 1 A 1 MX 🔓 Insecure View
2026-06-16 18:40:10 607ms 2 NS 1 A 1 MX 🔓 Insecure View
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