st-tag.dk

Records from scan: 2026-10-03 04:50:50 · 950ms total · last checked 2026-10-16 19:57 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

st-tag.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.43.16 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by sttag-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.43.16	3600s	linux16.scannet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sttag-dk0e.mail.protection.outlook.com	2a01:111:f403:ca21::a 2a01:111:f403:ca21::c 2a01:111:f403:ca48::10 2a01:111:f403:ca48::12 52.101.103.162 52.101.68.12 52.101.73.120 52.101.73.145	mail-maspr04cu00102.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr03cu00202.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-am6pr02cu00301.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 → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 45ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

5 records 133ms

TXT Record
DomainVerification=BDP5ASR7IK2DFP0NWCQCA3B1X83KAIBTUGK4NMU1HY39SWUAJNCFWWJOIBPCBA92
Jy+VMFDyAxzPPYYebTKHEUQNqdrRc8QPTLPbjyxFsvmct8x7pRZ3MfZTmg2+b/acCsY5FHQ96fAC1AIv8A0hYg==
knowbe4-site-verification=12db3b27fddec6ea272e3f8d5e7c1a76
MS=ms52818713
v=spf1 include:spf.protection.outlook.com ip4:212.112.184.237 ip4:80.160.72.48/28 -all

✉️ SPF#

Policy	Record (st-tag.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com ip4:212.112.184.237 ip4:80.160.72.48/28 -all

📨 DMARC#

Policy	Record (_dmarc.st-tag.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:67335ed7d9289@dmarc-dk.centerasecurity.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#

checked 2026-10-08 06:54:08

www	185.21.43.16 (AS48854) (address records, no CNAME)
www vs bare domain	Same network st-tag.dk: 185.21.43.16 (AS48854) www.st-tag.dk: 185.21.43.16 (AS48854)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-sttag-dk0e._domainkey.nordicwp.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

56ms

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

🏷️ SOA#

35ms

Field	Value
Serial	2025112701
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

30ms

34ms

AAAA

41ms

TXT

133ms

CAA

33ms

HTTPS

29ms

TLSA

483ms

SOA

35ms

MTA-STS

33ms

DNSSEC

56ms

SRV

45ms

Total

950ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 04:50:50 shown	950ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 16:07:59	677ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 20:06:36	2371ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 12:43:04	2444ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 13:22:23	906ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 11:34:40	1116ms	2 NS 1 A 1 MX	🔒 Secure