dktc.dk DNS records

🖥️ Nameservers2 records 63ms

Nameserver	IP addresses	PTR	ASN / ISP
guss.ns.cloudflare.com	108.162.193.172 172.64.33.172 173.245.59.172 2606:4700:58::adf5:3bac 2803:f800:50::6ca2:c1ac 2a06:98c1:50::ac40:21ac	guss.ns.cloudflare.com guss.ns.cloudflare.com guss.ns.cloudflare.com guss.ns.cloudflare.com guss.ns.cloudflare.com guss.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
harmony.ns.cloudflare.com	108.162.194.146 162.159.38.146 172.64.34.146 2606:4700:50::a29f:2692 2803:f800:50::6ca2:c292 2a06:98c1:50::ac40:2292	harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com harmony.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 47ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
75.2.70.75	3600s	aacb0a264e514dd48.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	75.2.0.0/17	🇺🇸 United States	—
99.83.190.102	3600s	aacb0a264e514dd48.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	99.83.128.0/17	🇺🇸 United States	—

📧 MX Records1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	dktc-dk.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::f 2a01:111:f403:ca09::20 2a01:111:f403:ca09::a 52.101.103.137 52.101.68.12 52.101.73.19 52.101.73.26	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr05cu01302.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 Records1 records 464ms

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

📝 TXT Records1 records 214ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.dktc.dk)
p=reject	v=DMARC1; p=reject;

📬 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)

🔐 DNSSEC9129ms

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

🏷️ SOA0ms

Field	Value
Serial	2410397083
Primary NS (MNAME)	guss.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

63ms

A

47ms

MX

56ms

AAAA

65ms

TXT

214ms

CAA

63ms

HTTPS

64ms

TLSA

621ms

SOA

0ms

MTA-STS

75ms

DNSSEC

9129ms

SRV

464ms

Total

10359ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 10:34:15	10359ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-25 04:54:23	3198ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-25 01:49:47	11460ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-21 23:10:20	1417ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-19 01:59:58	955ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 03:50:59	596ms	2 NS 2 A 1 MX	🔓 Insecure	View