realtjek.dk DNS records

🖥️ Nameservers2 records 27ms

Nameserver	IP addresses	PTR	ASN / ISP
brett.ns.cloudflare.com	108.162.193.76 172.64.33.76 173.245.59.76 2606:4700:58::adf5:3b4c 2803:f800:50::6ca2:c14c 2a06:98c1:50::ac40:214c	brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com brett.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
elsa.ns.cloudflare.com	108.162.192.111 172.64.32.111 173.245.58.111 2606:4700:50::adf5:3a6f 2803:f800:50::6ca2:c06f 2a06:98c1:50::ac40:206f	elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com elsa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 27ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.75.40	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.211.203	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	realtjek-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::24 2a01:111:f403:ca09::9 2a01:111:f403:ca09::e 52.101.103.143 52.101.68.27 52.101.73.11 52.101.73.145	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am1pr04cu00103.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 → 40.104.116.24

🔷 AAAA Records (IPv6)2 records 28ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:4b28	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:d3cb	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 34ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.75.40,172.67.211.203 ech=AEX+DQBB/gAgACBj3ZQaazmR4RDKgbRkFbDDCXC7k/q2zBXwpGrN2qG/LQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:4b28,2606:4700:3033::ac43:d3cb

📝 TXT Records2 records 142ms

TXT Record
MS=ms45129234
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.realtjek.dk)
p=none (monitor only)	v=DMARC1;p=none;rua=mailto:easy494064@easydmarc.com;ruf=mailto:ruf@rep.easydmarc.com;fo=1

📬 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)

🔐 DNSSEC96ms

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	2413528052
Primary NS (MNAME)	brett.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

27ms

A

27ms

MX

32ms

AAAA

28ms

TXT

142ms

CAA

33ms

HTTPS

34ms

TLSA

302ms

SOA

0ms

MTA-STS

40ms

DNSSEC

96ms

SRV

44ms

Total

1038ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-30 17:18:19	1038ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-28 22:36:42	907ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-27 21:55:56	1016ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-10 03:53:43	10605ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-22 07:23:44	1432ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 21:49:25	1794ms	2 NS 2 A 1 MX	🔓 Insecure	View