sif-skydning.dk

📜 Historical scan 2026-09-25 03:09:00 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sif-skydning.dk is a .dk domain served by 2 nameservers (eoin.ns.cloudflare.com, lorna.ns.cloudflare.com). It was registered on 15 August 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.5.20 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by sifskydning-dk0i.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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 44ms

Nameserver	IP addresses	PTR	ASN / ISP
eoin.ns.cloudflare.com	108.162.195.86 162.159.44.86 172.64.35.86 2606:4700:58::a29f:2c56 2803:f800:50::6ca2:c356 2a06:98c1:50::ac40:2356	eoin.ns.cloudflare.com eoin.ns.cloudflare.com eoin.ns.cloudflare.com eoin.ns.cloudflare.com eoin.ns.cloudflare.com eoin.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
lorna.ns.cloudflare.com	108.162.192.190 172.64.32.190 173.245.58.190 2606:4700:50::adf5:3abe 2803:f800:50::6ca2:c0be 2a06:98c1:50::ac40:20be	lorna.ns.cloudflare.com lorna.ns.cloudflare.com lorna.ns.cloudflare.com lorna.ns.cloudflare.com lorna.ns.cloudflare.com lorna.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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.5.20	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.132.192	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	sifskydning-dk0i.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca21::c 2a01:111:f403:ca48::10 2a01:111:f403:ca48::a 52.101.103.36 52.101.185.21 52.101.209.153 52.101.73.120	mail-dbapr03cu00100.inbound.protection.outlook.com mail-matpr04cu00204.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-zrxpr05cu00105.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-am7pr02cu00300.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 → 52.98.154.152

🔷 AAAA Records (IPv6)#

2 records 38ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:84c0	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:514	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.5.20,172.67.132.192 ech=AEX+DQBBtgAgACAMb//pJZX68uaLrJVO//FQcDiYso43EEcexkd5IKxBXQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:84c0,2606:4700:3034::6815:514

🔌 SRV Records#

1 records 59ms

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

📝 TXT Records#

2 records 168ms

TXT Record
MS=ms94491048
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

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

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-20 22:04:58

www	104.21.5.20 172.67.132.192 2606:4700:3030::ac43:84c0 2606:4700:3034::6815:514 (AS13335) (address records, no CNAME)
www vs bare domain	Same network sif-skydning.dk: 104.21.5.20 172.67.132.192 2606:4700:3030::ac43:84c0 2606:4700:3034::6815:514 (AS13335) www.sif-skydning.dk: 104.21.5.20 172.67.132.192 2606:4700:3030::ac43:84c0 2606:4700:3034::6815:514 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
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

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.sif-skydning.dk	EHtmP3_aJ9SCqAmdyLBGkNs0sklhXAgCsiKeI74BLMo
TXT	_acme-challenge.sif-skydning.dk	EdAu4Amlu3H1zJnaP5RPPgqyNyoJa-fjhQ7U-jynYEQ

🔗 TLSA / DANE#

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC#

115ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2415742366
Primary NS (MNAME)	eoin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 22:35:56

Field	Value
Registrar	DANDOMAIN A/S
Registered	2024-08-15
Expires	2027-08-14 (294d)

🔗 Same registrant#

4 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).

Domain	Registrar
aarthon.dk	DANDOMAIN A/S
improaim.dk	DANDOMAIN A/S
securityforum.dk	Punktum dk A/S (direct)
thonke.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

44ms

37ms

32ms

AAAA

38ms

TXT

168ms

CAA

33ms

HTTPS

35ms

TLSA

370ms

SOA

0ms

MTA-STS

51ms

DNSSEC

115ms

SRV

59ms

Total

1202ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-20 22:04:58	1355ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 22:54:17	1155ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-28 03:46:56	862ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-27 03:31:42	994ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 03:20:24	984ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-25 03:09:00 shown	1202ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 02:54:09	817ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-03 15:06:57	1157ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-11 11:25:12	3880ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-30 13:56:58	25307ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-27 23:03:37	10876ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-16 20:24:51	17872ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-24 18:03:15	2364ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-18 06:42:49	1552ms	2 NS 2 A 1 MX	🔓 Insecure