1900am.dk

📜 Historical scan 2026-06-25 21:34:22 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

1900am.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was registered on 9 March 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 13.107.246.44 is hosted by Microsoft Corporation (AS8075) in United States. Mail is handled by 1900am-dk.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 69ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.dns-123.net	35.198.132.83	83.132.198.35.bc.googleusercontent.com	AS396982 Google LLC
ns5.dns-123.net	35.187.184.173	173.184.187.35.bc.googleusercontent.com	AS396982 Google LLC
ns6.dns-123.net	35.228.54.1	1.54.228.35.bc.googleusercontent.com	AS396982 Google LLC

🌍 A Records#

1 records 69ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
13.107.246.44	7200s	—	AS8075	Microsoft Corporation	13.107.240.0/21	🇺🇸 United States	—

📧 MX Records#

1 records 100ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	7200s	1900am-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::c 2a01:111:f403:ca09::6 2a01:111:f403:ca09::b 52.101.68.25 52.101.68.32 52.101.68.5 52.101.73.8	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 52.98.240.104
🔶 Autoconfig	5.186.164.175

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 224ms

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

📝 TXT Records#

2 records 368ms

TXT Record
v=DMARC1; p=reject; rua=mailto:abuse@1900am.dk
v=spf1 ip4:5.103.119.94 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (1900am.dk)
-all (hard fail)	v=spf1 ip4:5.103.119.94 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.1900am.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 2026-10-14 12:04:26

www CNAME	1900am.dk (all on 1900am.dk) → 217.195.185.219 2a02:188:6004:10::27 (AS31027)
www vs bare domain	Same network 1900am.dk: 217.195.185.219 2a02:188:6004:10::27 (AS31027) www.1900am.dk: 217.195.185.219 2a02:188:6004:10::27 (AS31027)
Wildcard	No
Denial of existence	NSEC3 · 10 iterations · 8-byte salt · opt-out RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 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#

162ms

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

🏷️ SOA#

69ms

Field	Value
Serial	2012112686
Primary NS (MNAME)	ns4.dns-123.net
Responsible (RNAME)	admin@dns-123.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-14 11:53:56

Field	Value
Registrar	TS COMPUTER ApS
Registered	2006-03-09
Expires	2027-03-31 (165d)

🔗 Same registrant#

2 domains

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
cafékongelunden.dk	TS COMPUTER ApS
marselisløbet.dk	TS COMPUTER ApS

📋 WHOIS#

⏱️ Lookup Timing#

69ms

100ms

AAAA

78ms

TXT

368ms

CAA

53ms

HTTPS

73ms

TLSA

279ms

SOA

69ms

MTA-STS

121ms

DNSSEC

162ms

SRV

224ms

Total

1038ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 12:04:25	1874ms	3 NS 1 A 0 MX	🔓 Insecure
2026-10-14 11:43:16	436ms	3 NS 1 A 0 MX	🔓 Insecure
2026-07-13 20:15:02	10861ms	3 NS 1 A 1 MX	🔒 Secure
2026-07-12 06:28:46	8079ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-25 21:34:22 shown	1038ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:54:18	1259ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:49:12	1529ms	3 NS 1 A 1 MX	🔒 Secure