arktiskinstitut.dk

📜 Historical scan 2026-06-25 06:43:20 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arktiskinstitut.dk is a .dk domain served by 2 nameservers (bradley.ns.cloudflare.com, nadia.ns.cloudflare.com). It was registered on 19 September 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.11.112 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by arktiskinstitut-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
bradley.ns.cloudflare.com	108.162.195.35 162.159.44.35 172.64.35.35 2606:4700:58::a29f:2c23 2803:f800:50::6ca2:c323 2a06:98c1:50::ac40:2323	bradley.ns.cloudflare.com bradley.ns.cloudflare.com bradley.ns.cloudflare.com bradley.ns.cloudflare.com bradley.ns.cloudflare.com bradley.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
nadia.ns.cloudflare.com	108.162.192.207 172.64.32.207 173.245.58.207 2606:4700:50::adf5:3acf 2803:f800:50::6ca2:c0cf 2a06:98c1:50::ac40:20cf	nadia.ns.cloudflare.com nadia.ns.cloudflare.com nadia.ns.cloudflare.com nadia.ns.cloudflare.com nadia.ns.cloudflare.com nadia.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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.11.112	600s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.191.249	600s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	arktiskinstitut-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::9 2a01:111:f403:ca04::e 2a01:111:f403:ca09::5 52.101.68.3 52.101.68.32 52.101.68.8 52.101.73.26	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as9pr05cu01302.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	188.114.96.1

🔷 AAAA Records (IPv6)#

2 records 56ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	600s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 85ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.11.112,172.67.191.249 ech=AEX+DQBBVgAgACBdG8sksqgrohTJgNZzzCy9VY2dz59GfxpdFuyToyulLwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:bff9,2606:4700:3033::6815:b70

🔌 SRV Records#

1 records 117ms

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

📝 TXT Records#

1 records 316ms

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

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.arktiskinstitut.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:2a4dd9c41f634bbc8dcd9e9fa2ad5fab@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 2026-10-09 10:36:32

www	104.21.11.112 172.67.191.249 2606:4700:3030::ac43:bff9 2606:4700:3033::6815:b70 (AS13335) (address records, no CNAME)
www vs bare domain	Same network arktiskinstitut.dk: 104.21.11.112 172.67.191.249 2606:4700:3030::ac43:bff9 2606:4700:3033::6815:b70 (AS13335) www.arktiskinstitut.dk: 104.21.11.112 172.67.191.249 2606:4700:3030::ac43:bff9 2606:4700:3033::6815:b70 (AS13335)
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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-arktiskinstitut-dk._domainkey.arktiskinstitut.w-v1.dkim.mail.microsoft	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

100ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA#

64ms

Field	Value
Serial	2407706530
Primary NS (MNAME)	bradley.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-04 05:40:43

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-09-19
Expires	2027-09-30 (346d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

42ms

43ms

AAAA

56ms

TXT

316ms

CAA

43ms

HTTPS

85ms

TLSA

2857ms

SOA

64ms

MTA-STS

74ms

DNSSEC

100ms

SRV

117ms

Total

3954ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 10:36:32	1420ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-04 05:21:39	1111ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-28 04:22:56	1639ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-08 09:56:51	2159ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-26 17:26:07	3041ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-12 04:56:12	10625ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-06 11:27:47	2563ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-17 21:24:38	1277ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 06:43:20 shown	3954ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-16 12:50:17	1702ms	2 NS 2 A 1 MX	🔒 Secure