co-4.dk DNS records

🖥️ Nameservers3 records 157ms

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 165ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.242	3425s	linux331.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 176ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	co4-dk0e.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::6 2a01:111:f403:ca09:: 2a01:111:f403:ca09::6 52.101.68.12 52.101.73.11 52.101.73.16 52.101.73.19	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.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
🔶 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 257ms

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

📝 TXT Records1 records 399ms

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

✉️ SPF

Policy	Record (co-4.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

📨 DMARC

Policy	Record (_dmarc.co-4.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)

🔐 DNSSEC420ms

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

🏷️ SOA180ms

Field	Value
Serial	2026052105
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

157ms

A

165ms

MX

176ms

AAAA

161ms

TXT

399ms

CAA

136ms

HTTPS

176ms

TLSA

689ms

SOA

180ms

MTA-STS

192ms

DNSSEC

420ms

SRV

257ms

Total

7673ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-26 07:26:49	7673ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 15:28:58	1092ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 21:48:14	57630ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:46:57	1887ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 21:30:46	889ms	3 NS 1 A 1 MX	🔒 Secure	View