der.dk DNS records

🖥️ Nameservers4 records 135ms

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 Records1 records 114ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.105.216.38	3600s	—	AS8075	Microsoft Corporation	20.64.0.0/10	🇳🇱 The Netherlands	Amsterdam

📧 MX Records1 records 123ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	der-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::f 2a01:111:f403:ca09::4 2a01:111:f403:ca09::b 52.101.68.10 52.101.68.12 52.101.73.153 52.101.73.19	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 975ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records11 records 265ms

TXT Record
_7la4rdjqj2ru9wpmhk5vgvnyyzz6edy
3c-live.3c-live.p.azurewebsites.net
apple-domain-verification=TM3DCM1wxLkrWkga
facebook-domain-verification=hcgwoki79eu0cec49epzdhrntom8qd
google-site-verification=KJNPGsJoIFG-GuqdVGcsEldKRWBRcQsGzfSySkcNsdk
MS=ms97551464
o46VgX/pqlck9hTM5YCG7p1sipyRjYeRIjxa65NfD0k=
q0nqzphR32/tuxewwHFyveAeIc5BNI30L3xzFhLGqSc=
v=spf1 ip4:194.182.232.130 ip4:176.22.250.3 ip4:13.80.28.9 a:alternativ1.3cgroups.com include:spf.protection.outlook.com ?include:trustpilotservice.com include:_spf.signicat.cloud -all
Y3V/NkUS1HcAbqL2hVSTifs155NUL+LpshqvygPozGE32/i1hUXUHvAC+vtzaESlNcYQGCoN+vcP/jjTEQwJcw==
ZCLdXvV+2ytGMB/mLHvAUcQBMoI56jJHRQjq+DOClUc=

✉️ SPF

Policy	Record (der.dk)
-all (hard fail)	v=spf1 ip4:194.182.232.130 ip4:176.22.250.3 ip4:13.80.28.9 a:alternativ1.3cgroups.com include:spf.protection.outlook.com ?include:trustpilotservice.com include:_spf.signicat.cloud -all

📨 DMARC

Policy	Record (_dmarc.der.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc_agg@vali.email

📬 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)

🔐 DNSSEC179ms

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

🏷️ SOA0ms

Field	Value
Serial	2026032324
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

135ms

A

114ms

MX

123ms

AAAA

139ms

TXT

265ms

CAA

119ms

HTTPS

149ms

TLSA

160ms

SOA

0ms

MTA-STS

119ms

DNSSEC

179ms

SRV

975ms

Total

2206ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 15:34:40	1095ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-17 17:48:57	3312ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-16 04:19:38	2115ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-08-03 10:42:22	2206ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 09:02:05	2060ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 03:01:34	1539ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 00:48:43	1176ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 04:09:30	1005ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 02:05:21	759ms	4 NS 1 A 1 MX	🔒 Secure	View