stolborg.dk

📜 Historical scan 2026-08-28 07:16:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

stolborg.dk is a .dk domain served by 2 nameservers (ada.ns.cloudflare.com, ray.ns.cloudflare.com). It was registered on 25 June 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.39.48 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by stolborg-dk.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 56ms

Nameserver	IP addresses	PTR	ASN / ISP
ada.ns.cloudflare.com	108.162.192.54 172.64.32.54 173.245.58.54 2606:4700:50::adf5:3a36 2803:f800:50::6ca2:c036 2a06:98c1:50::ac40:2036	ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com ada.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ray.ns.cloudflare.com	108.162.193.138 172.64.33.138 173.245.59.138 2606:4700:58::adf5:3b8a 2803:f800:50::6ca2:c18a 2a06:98c1:50::ac40:218a	ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.ns.cloudflare.com ray.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 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.39.48	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.143.55	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 53ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	stolborg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09::7 2a01:111:f403:ca09::8 2a01:111:f403:ca09::9 52.101.68.36 52.101.73.15 52.101.73.155 52.101.73.24	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-as8pr05cu00300.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 → 40.104.116.8
🔶 Autoconfig	104.21.39.48

🔷 AAAA Records (IPv6)#

2 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3034::6815:2730	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:8f37	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.39.48,172.67.143.55 ech=AEX+DQBBMgAgACB2gyxIfgnmTyLKl+z5EdXkR9TwlIiJEVN8uT3zS3XZRwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:2730,2606:4700:3035::ac43:8f37

📝 TXT Records#

1 records 234ms

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

✉️ SPF#

Policy	Record (stolborg.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 2026-10-08 18:48:48

www	104.21.39.48 172.67.143.55 2606:4700:3034::6815:2730 2606:4700:3035::ac43:8f37 (AS13335) (address records, no CNAME)
www vs bare domain	Same network stolborg.dk: 104.21.39.48 172.67.143.55 2606:4700:3034::6815:2730 2606:4700:3035::ac43:8f37 (AS13335) www.stolborg.dk: 104.21.39.48 172.67.143.55 2606:4700:3034::6815:2730 2606:4700:3035::ac43:8f37 (AS13335)
Wildcard	Yes: any name under the zone resolves

🔎 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#

87ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2411576807
Primary NS (MNAME)	ada.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 17:44:37

Field	Value
Registrar	DANDOMAIN A/S
Registered	2021-06-25
Expires	2031-06-30 (1713d)

📋 WHOIS#

⏱️ Lookup Timing#

56ms

53ms

AAAA

42ms

TXT

234ms

CAA

48ms

HTTPS

51ms

TLSA

609ms

SOA

0ms

MTA-STS

69ms

DNSSEC

87ms

SRV

465ms

Total

1512ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-05 17:25:59	1819ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-26 16:29:25	895ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-28 07:16:51 shown	1512ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-08 09:44:40	2300ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-25 13:51:41	1199ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 06:29:24	1435ms	2 NS 1 A 1 MX	🔒 Secure