grubak.dk DNS records

🖥️ Nameservers4 records 54ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.20.205.13	3600s	linux344.unoeuro.com	AS48854	team.blue Denmark A/S	185.20.204.0/22	🇩🇰 Denmark	—

📧 MX Records1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	grubak-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca09::24 2a01:111:f403:ca09::9 2a01:111:f403:ca48::a 52.101.103.36 52.101.68.3 52.101.73.19 52.101.73.2	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr07cu00302.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 → 40.104.116.8
🔶 Autoconfig	185.20.205.13

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 141ms

TXT Record
MS=A8C5853357D6B1E5CF8DF509CCB84A1A3DD4D175
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (grubak.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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

🔗 TLSA / DANE

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

🔐 DNSSEC83ms

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

🏷️ SOA0ms

Field	Value
Serial	2021051604
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

54ms

A

42ms

MX

40ms

AAAA

50ms

TXT

141ms

CAA

42ms

HTTPS

41ms

TLSA

368ms

SOA

0ms

MTA-STS

59ms

DNSSEC

83ms

SRV

70ms

Total

894ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 08:09:27	894ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 16:52:40	2249ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 07:16:46	1232ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-20 07:54:13	593ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 09:59:36	2839ms	4 NS 1 A 1 MX	🔒 Secure	View