csirt.dk DNS records

🖥️ Nameservers4 records 59ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.eurodns.com	199.167.66.107 2610:1c8:b002::107	ns1.eurodns.com ns1.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns2.eurodns.com	104.37.178.107 2610:1c8:b001::107	ns2.eurodns.com ns2.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns3.eurodns.com	199.167.66.108 2610:1c8:b002::108	ns3.eurodns.com ns3.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC
ns4.eurodns.com	104.37.178.108 2610:1c8:b001::108	ns4.eurodns.com ns4.eurodns.com	AS23393 NuCDN LLC AS23393 NuCDN LLC

🌍 A Records3 records 58ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
18.192.246.145	600s	ec2-18-192-246-145.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	18.192.0.0/13	🇩🇪 Germany	Frankfurt am Main
18.193.144.171	600s	ec2-18-193-144-171.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	18.192.0.0/13	🇩🇪 Germany	Frankfurt am Main
3.125.131.179	600s	ec2-3-125-131-179.eu-central-1.compute.amazonaws.com	AS16509	Amazon.com, Inc.	3.96.0.0/11	🇩🇪 Germany	Frankfurt am Main

📧 MX Records1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
20	3600s	mail.csirt.dk	87.48.146.74	mail.csirt.dk	AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 310ms

TXT Record
v=spf1 ip4:87.48.146.68 ip4:87.48.146.74 -all

✉️ SPF

Policy	Record (csirt.dk)
-all (hard fail)	v=spf1 ip4:87.48.146.68 ip4:87.48.146.74 -all

📨 DMARC

Policy	Record (_dmarc.csirt.dk)
p=reject	v=DMARC1; p=reject; sp=reject; fo=1; rua=mailto:cv1zdpyr@ag.eu.dmarcian.com; ruf=mailto:cv1zdpyr@fr.eu.dmarcian.com;

📬 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

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC71ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA0ms

Field	Value
Serial	2026021036
Primary NS (MNAME)	ns1.eurodns.com
Responsible (RNAME)	hostmaster@eurodns.com
Refresh	43200s
Retry	7200s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

59ms

A

58ms

MX

56ms

AAAA

64ms

TXT

310ms

CAA

58ms

HTTPS

55ms

TLSA

209ms

SOA

0ms

MTA-STS

78ms

DNSSEC

71ms

SRV

102ms

Total

948ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 05:19:36	948ms	4 NS 3 A 1 MX	🔒 Secure	View
2026-08-18 18:17:44	3877ms	4 NS 3 A 1 MX	🔒 Secure	View
2026-08-17 13:01:47	2629ms	4 NS 3 A 1 MX	🔒 Secure	View
2026-08-06 22:17:30	1097ms	4 NS 3 A 1 MX	🔒 Secure	View
2026-07-29 11:13:58	9831ms	4 NS 3 A 1 MX	🔒 Secure	View
2026-07-13 14:11:47	1104ms	4 NS 3 A 1 MX	🔒 Secure	View
2026-06-25 21:48:10	883ms	4 NS 3 A 1 MX	🔒 Secure	View
2026-06-16 23:05:11	2615ms	4 NS 3 A 1 MX	🔒 Secure	View