zrb.dk DNS records

🖥️ Nameservers4 records 43ms

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 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.112	3600s	linux97.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	zrb-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::2 2a01:111:f403:ca09::8 2a01:111:f403:ca48::a 52.101.181.153 52.101.68.3 52.101.73.153 52.101.73.8	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-am0pr04cu00500.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	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records5 records 162ms

TXT Record
facebook-domain-verification=lepx5mxyomgc5izxy8mg3bt7pndax4
facebook-domain-verification=ugni8hs3ytdux3abhc3wwrmgevhy9e
google-site-verification=6K1CTru7nrZsqgvHaO_I1j9K3pRG1mu1mi1KMUoP8K0
MS=ms89652983
v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com ~all

✉️ SPF

Policy	Record (zrb.dk)
~all (soft fail)	v=spf1 include:servers.mcsv.net 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)

🔐 DNSSEC91ms

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

🏷️ SOA0ms

Field	Value
Serial	2025042300
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

43ms

A

47ms

MX

29ms

AAAA

68ms

TXT

162ms

CAA

43ms

HTTPS

39ms

TLSA

593ms

SOA

0ms

MTA-STS

54ms

DNSSEC

91ms

SRV

73ms

Total

1263ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 10:54:18	1263ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 12:38:46	1959ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 17:34:37	2206ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 20:21:22	611ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 12:04:08	1547ms	4 NS 1 A 1 MX	🔒 Secure	View