1748.dk

📜 Historical scan 2026-07-08 18:56:13 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

1748.dk is a .dk domain served by 2 nameservers (kay.ns.cloudflare.com, titan.ns.cloudflare.com). It was registered on 8 September 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.50.2.84 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by 1748-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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#

2 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
kay.ns.cloudflare.com	108.162.192.125 172.64.32.125 173.245.58.125 2606:4700:50::adf5:3a7d 2803:f800:50::6ca2:c07d 2a06:98c1:50::ac40:207d	kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com kay.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
titan.ns.cloudflare.com	108.162.195.93 162.159.44.93 172.64.35.93 2606:4700:58::a29f:2c5d 2803:f800:50::6ca2:c35d 2a06:98c1:50::ac40:235d	titan.ns.cloudflare.com titan.ns.cloudflare.com titan.ns.cloudflare.com titan.ns.cloudflare.com titan.ns.cloudflare.com titan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
20.50.2.84	300s	—	AS8075	Microsoft Corporation	20.48.0.0/12	🇳🇱 The Netherlands	Amsterdam

📧 MX Records#

1 records 57ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	1748-dk.mail.protection.outlook.com	2a01:111:f403:ca04::6 2a01:111:f403:ca04::d 2a01:111:f403:ca09::c 2a01:111:f403:ca09::d 52.101.68.15 52.101.68.16 52.101.68.39 52.101.73.153	mail-db4pr02cu00406.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 128ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

3 records 440ms

TXT Record
MS=2F0B06AF43358CAD5AC802C8B35FEB5AD7F8B449
MS=ms12477964
v=spf1 include:_spf.mlsend.com ip4:40.67.208.1 ip4:20.126.124.177 ip4:23.97.187.218 ip4:86.58.157.151 include:spf.protection.outlook.com include:spf.mailjet.com a:mailfence.ngoweb.dk include:sendgrid.net -all

✉️ SPF#

Policy	Record (1748.dk)
-all (hard fail)	v=spf1 include:_spf.mlsend.com ip4:40.67.208.1 ip4:20.126.124.177 ip4:23.97.187.218 ip4:86.58.157.151 include:spf.protection.outlook.com include:spf.mailjet.com a:mailfence.ngoweb.dk include:sendgrid.net -all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-09 10:12:10

www CNAME	app-1748-prod-001.azurewebsites.net (all on azurewebsites.net) → 20.50.2.84 (AS8075)
www vs bare domain	Same network 1748.dk: 20.50.2.84 (AS8075) www.1748.dk: 20.50.2.84 (AS8075)
Wildcard	No

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u7665582.wl083.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u7665582.wl083.sendgrid.net	RSA · ~1024 bit below 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: 6/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

131ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2408945390
Primary NS (MNAME)	kay.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 18:51:10

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-09-08
Expires	2027-09-30 (348d)

📋 WHOIS#

⏱️ Lookup Timing#

61ms

49ms

57ms

AAAA

57ms

TXT

440ms

CAA

65ms

HTTPS

43ms

TLSA

249ms

SOA

0ms

MTA-STS

109ms

DNSSEC

131ms

SRV

128ms

Total

2001ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:12:10	983ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-29 15:53:40	1207ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-28 15:40:54	921ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-14 19:28:32	3186ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-08 07:17:49	1619ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-05 23:40:17	2945ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-08 18:56:13 shown	2001ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-02 00:34:37	1160ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 13:16:44	7798ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-16 13:12:55	752ms	2 NS 1 A 1 MX	🔓 Insecure