struertelt.dk DNS records

🖥️ Nameservers2 records 98ms

Nameserver	IP addresses	PTR	ASN / ISP
barbara.ns.cloudflare.com	108.162.192.248 172.64.32.248 173.245.58.248 2606:4700:50::adf5:3af8 2803:f800:50::6ca2:c0f8 2a06:98c1:50::ac40:20f8	barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
justin.ns.cloudflare.com	108.162.193.187 172.64.33.187 173.245.59.187 2606:4700:58::adf5:3bbb 2803:f800:50::6ca2:c1bb 2a06:98c1:50::ac40:21bb	justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 99ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.3.30	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.130.37	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 114ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	86400s	struertelt-dk.mail.protection.outlook.com	2a01:111:f403:ca04::c 2a01:111:f403:ca04::f 2a01:111:f403:ca09::8 2a01:111:f403:ca09::c 52.101.68.25 52.101.68.5 52.101.68.8 52.101.73.28	mail-db9pr02cu00204.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr05cu00204.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)2 records 101ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:8225	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:31e	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 116ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.3.30,172.67.130.37 ech=AEX+DQBBIgAgACDOtQ3053aPAPHpudun+X+XZqInF7Z+ecPSgFoIC0EzYgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:8225,2606:4700:3035::6815:31e

🔌 SRV Records1 records 175ms

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

📝 TXT Records3 records 342ms

TXT Record
google-site-verification=o5afg-ypdwnwyiyunh0t-urhbnfeyj5gdw3jdzlf6vq
MS=ms42803602
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.struertelt.dk)
p=reject	v=DMARC1; p=reject; adkim=s; aspf=s;

📬 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)

🔐 DNSSEC229ms

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	2412946458
Primary NS (MNAME)	barbara.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

98ms

A

99ms

MX

114ms

AAAA

101ms

TXT

342ms

CAA

109ms

HTTPS

116ms

TLSA

448ms

SOA

0ms

MTA-STS

128ms

DNSSEC

229ms

SRV

175ms

Total

4654ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-23 17:47:53	4654ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-22 13:30:52	5988ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-04 21:12:39	10549ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 15:54:03	1346ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-22 06:45:53	768ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 11:48:48	979ms	2 NS 2 A 1 MX	🔓 Insecure	View