dahlstrøm-byg.dk xn--dahlstrm-byg-1jb.dk

📜 Historical scan 2026-07-18 05:06:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

dahlstrøm-byg.dk is a .dk domain served by 2 nameservers (desi.ns.cloudflare.com, jim.ns.cloudflare.com). It was registered on 10 May 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by xndahlstrmbyg1jb-dk0m2bb.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 34ms

Nameserver	IP addresses	PTR	ASN / ISP
desi.ns.cloudflare.com	108.162.192.96 172.64.32.96 173.245.58.96 2606:4700:50::adf5:3a60 2803:f800:50::6ca2:c060 2a06:98c1:50::ac40:2060	desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com desi.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
jim.ns.cloudflare.com	108.162.193.125 172.64.33.125 173.245.59.125 2606:4700:58::adf5:3b7d 2803:f800:50::6ca2:c17d 2a06:98c1:50::ac40:217d	jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com jim.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	xndahlstrmbyg1jb-dk0m2bb.mail.protection.outlook.com	2a01:111:f403:ca04:: 2a01:111:f403:ca04::10 2a01:111:f403:ca09::3 2a01:111:f403:ca09::8 52.101.68.36 52.101.68.5 52.101.73.15 52.101.73.16	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.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
🔶 Autoconfig	104.21.81.217

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 181ms

TXT Record
MS=ms45445088
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.dahlstrøm-byg.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:7107ccf174044ae4bdf67208e667cb3b@dmarc-reports.cloudflare.net

📬 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 2026-10-12 16:37:14

www	104.21.81.217 172.67.165.57 2606:4700:3033::ac43:a539 2606:4700:3035::6815:51d9 (AS13335) (address records, no CNAME)
www vs bare domain	Only www resolves dahlstrøm-byg.dk: no address www.dahlstrøm-byg.dk: 104.21.81.217 172.67.165.57 2606:4700:3033::ac43:a539 2606:4700:3035::6815:51d9 (AS13335) (all like this)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 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#

2051ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

0ms

Field	Value
Serial	2409780742
Primary NS (MNAME)	desi.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 13:05:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2024-05-10
Expires	2027-05-09 (193d)

📋 WHOIS#

⏱️ Lookup Timing#

34ms

37ms

33ms

AAAA

33ms

TXT

181ms

CAA

39ms

HTTPS

40ms

TLSA

770ms

SOA

0ms

MTA-STS

41ms

DNSSEC

2051ms

SRV

52ms

Total

3856ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 12:59:58	487ms	2 NS 0 A 1 MX	🔒 Secure
2026-10-01 08:18:35	790ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-29 21:15:02	931ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-26 19:27:19	1466ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-25 19:12:57	928ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-24 18:58:32	744ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-23 21:59:47	1738ms	2 NS 0 A 1 MX	🔒 Secure
2026-09-12 12:45:50	892ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-25 23:33:11	983ms	2 NS 0 A 1 MX	🔒 Secure
2026-08-19 08:22:51	1727ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-28 15:45:32	4366ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-26 11:39:02	1623ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-18 05:06:59 shown	3856ms	2 NS 0 A 1 MX	🔒 Secure
2026-07-03 14:14:06	10758ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-25 12:54:18	1673ms	2 NS 0 A 1 MX	⚠️ Bogus
2026-06-21 11:29:03	314ms	0 NS 0 A 0 MX	🔒 Secure
2026-06-21 04:35:58	1237ms	2 NS 0 A 1 MX	🔒 Secure
2026-06-21 02:44:47	341ms	0 NS 0 A 0 MX	🔒 Secure
2026-06-16 23:43:57	543ms	2 NS 0 A 1 MX	⚠️ Bogus
2026-06-16 23:41:33	3098ms	2 NS 0 A 1 MX	🔒 Secure