sm-c.dk

📜 Historical scan 2026-06-18 00:14:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sm-c.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 27 December 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.226 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by smc-dk0e.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 80ms

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 Records#

1 records 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.226	—	vm1030.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 80ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	smc-dk0e.mail.protection.outlook.com	2a01:111:f403:ca09:: 2a01:111:f403:ca09::5 2a01:111:f403:ca09::6 2a01:111:f403:ca09::7 52.101.68.15 52.101.68.29 52.101.73.153 52.101.73.24	mail-am3pr04cu00500.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.230.248
🔶 Autoconfig	185.21.42.226

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 113ms

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

📝 TXT Records#

2 records 159ms

TXT Record
MS=ms55032271
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.sm-c.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-08 17:02:58

www	185.21.42.226 (AS48854) (address records, no CNAME)
www vs bare domain	Same network sm-c.dk: 185.21.42.226 (AS48854) www.sm-c.dk: 185.21.42.226 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

105ms

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

🏷️ SOA#

30ms

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#

WHOIS fetched 2026-10-07 01:04:31

Field	Value
Registrar	Simply.com A/S
Registered	2022-12-27
Expires	2026-12-26 (69d)

📋 WHOIS#

⏱️ Lookup Timing#

80ms

54ms

80ms

AAAA

81ms

TXT

159ms

CAA

80ms

HTTPS

81ms

TLSA

1460ms

SOA

30ms

MTA-STS

43ms

DNSSEC

105ms

SRV

113ms

Total

2059ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 13:54:37	1083ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-30 13:49:20	1030ms	3 NS 1 A 1 MX	🔒 Secure
2026-09-20 04:51:14	914ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-20 07:11:24	851ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-18 00:14:51 shown	2059ms	3 NS 1 A 1 MX	🔒 Secure