struertelt.dk

📜 Historical scan 2026-06-24 15:54:03 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

struertelt.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, justin.ns.cloudflare.com). It was registered on 25 January 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.3.30 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by struertelt-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 36ms

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 Records#

2 records 36ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.3.30	600s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.130.37	600s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 29ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	86400s	struertelt-dk.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::8 2a01:111:f403:ca09::6 2a01:111:f403:ca09::d 52.101.68.39 52.101.73.2 52.101.73.30 52.101.73.6	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-as9pr07cu00302.inbound.protection.outlook.com mail-am7pr05cu00306.inbound.protection.outlook.com mail-am6pr04cu00306.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 → 40.104.116.56

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:8225	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:31e	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 60ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBB5gAgACCJei01RKwHlcPsoqBzSP1UtUZGDaXvIOEKb0W8JOxqVAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1

🔌 SRV Records#

1 records 210ms

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

📝 TXT Records#

3 records 230ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-16 08:44:22

www	104.21.3.30 172.67.130.37 2606:4700:3032::ac43:8225 2606:4700:3035::6815:31e (AS13335) (address records, no CNAME)
www vs bare domain	Same network struertelt.dk: 104.21.3.30 172.67.130.37 2606:4700:3032::ac43:8225 2606:4700:3035::6815:31e (AS13335) www.struertelt.dk: 104.21.3.30 172.67.130.37 2606:4700:3032::ac43:8225 2606:4700:3035::6815:31e (AS13335)
Wildcard	No

🔎 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#

80ms

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

🏷️ SOA#

193ms

Field	Value
Serial	2406114848
Primary NS (MNAME)	barbara.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-13 07:23:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-01-25
Expires	2027-01-31 (103d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

36ms

29ms

AAAA

38ms

TXT

230ms

CAA

84ms

HTTPS

60ms

TLSA

187ms

SOA

193ms

MTA-STS

86ms

DNSSEC

80ms

SRV

210ms

Total

1346ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 09:47:09	756ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-23 17:47:53	4654ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-22 13:30:52	5988ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-04 21:12:39	10549ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 15:54:03 shown	1346ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 06:45:53	768ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-17 11:48:48	979ms	2 NS 2 A 1 MX	🔓 Insecure