co-teachingdanmark.dk DNS records

🖥️ Nameservers3 records 41ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.45	3600s	linux191.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	coteachingdanmark-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::c 2a01:111:f403:ca09::d 2a01:111:f403:ca48::8 52.101.103.140 52.101.68.12 52.101.68.32 52.101.73.155	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.56
🔶 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 55ms

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

📝 TXT Records2 records 140ms

TXT Record
MS=ms78862737
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.co-teachingdanmark.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)

🔐 DNSSEC84ms

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

41ms

A

40ms

MX

44ms

AAAA

43ms

TXT

140ms

CAA

37ms

HTTPS

33ms

TLSA

364ms

SOA

0ms

MTA-STS

67ms

DNSSEC

84ms

SRV

55ms

Total

1028ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 21:33:21	1028ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 14:56:32	2728ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 10:40:44	3257ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-19 05:45:51	1105ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 00:10:08	56620ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 21:53:59	1894ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:30:54	651ms	3 NS 1 A 1 MX	🔒 Secure	View