20b.dk DNS records

🖥️ Nameservers3 records 308ms

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

🌍 A Records1 records 201ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.116	3600s	linux235.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 189ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	20b-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::10 2a01:111:f403:ca09::3 2a01:111:f403:ca09::5 52.101.68.0 52.101.68.10 52.101.68.3 52.101.73.4	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am0pr83cu00404.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
🔶 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

🔌 SRV Records1 records 471ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records3 records 972ms

TXT Record
MS=ms91903698
v=spf1 include:spf.mailanyone.net include:spf.protection.outlook.com include:spf.eu.signature365.net -all
vpe=609440c9

✉️ SPF

Policy	Record (20b.dk)
-all (hard fail)	v=spf1 include:spf.mailanyone.net include:spf.protection.outlook.com include:spf.eu.signature365.net -all

📨 DMARC

Policy	Record (_dmarc.20b.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.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)

🔐 DNSSEC612ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082001
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

308ms

A

201ms

MX

189ms

AAAA

246ms

TXT

972ms

CAA

352ms

HTTPS

296ms

TLSA

872ms

SOA

0ms

MTA-STS

580ms

DNSSEC

612ms

SRV

471ms

Total

9341ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-20 23:00:07	9341ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-19 22:35:33	6190ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-08-15 17:02:48	4768ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-30 09:01:03	1080ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 23:16:48	1302ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 00:07:47	691ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 04:34:55	694ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 21:41:12	697ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-21 00:46:45	1190ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 12:54:12	1439ms	3 NS 1 A 1 MX	🔒 Secure	View