nidhog.dk

📜 Historical scan 2026-07-06 06:02:49 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nidhog.dk is a .dk domain served by 2 nameservers (bob.ns.cloudflare.com, dorthy.ns.cloudflare.com). It was registered on 2 April 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.19.190 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by nidhog-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 148ms

Nameserver	IP addresses	PTR	ASN / ISP
bob.ns.cloudflare.com	108.162.193.104 172.64.33.104 173.245.59.104 2606:4700:58::adf5:3b68 2803:f800:50::6ca2:c168 2a06:98c1:50::ac40:2168	bob.ns.cloudflare.com bob.ns.cloudflare.com bob.ns.cloudflare.com bob.ns.cloudflare.com bob.ns.cloudflare.com bob.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dorthy.ns.cloudflare.com	108.162.192.249 172.64.32.249 173.245.58.249 2606:4700:50::adf5:3af9 2803:f800:50::6ca2:c0f9 2a06:98c1:50::ac40:20f9	dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.ns.cloudflare.com dorthy.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 162ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.19.190	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.188.144	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 151ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	nidhog-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::b 2a01:111:f403:ca09::4 2a01:111:f403:ca09::c 52.101.68.0 52.101.68.16 52.101.68.32 52.101.73.153	mail-dbapr03cu00100.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as8pr05cu00401.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

🔷 AAAA Records (IPv6)#

2 records 171ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:13be	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:bc90	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 201ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.19.190,172.67.188.144 ech=AEX+DQBBAQAgACAktz2NsRj5TDJsxKrWaGPLYg0XHexdNeIhNgpk/cxrSgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:13be,2606:4700:3036::ac43:bc90

🔌 SRV Records#

1 records 279ms

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

📝 TXT Records#

1 records 362ms

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

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.nidhog.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:d3acff32dd034e478b8ef08953d6749b@dmarc-reports.cloudflare.net,mailto:it-security+dmarc@nidhog.dk

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

11 records 216ms

Flags	Tag	Value
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
0	issue	sectigo.com
0	issue	ssl.com
0	issuewild	comodoca.com
0	issuewild	digicert.com; cansignhttpexchanges=yes
0	issuewild	letsencrypt.org
0	issuewild	pki.goog; cansignhttpexchanges=yes
0	issuewild	ssl.com

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-17 19:58:09

www	104.21.19.190 172.67.188.144 2606:4700:3030::6815:13be 2606:4700:3036::ac43:bc90 (AS13335) (address records, no CNAME)
www vs bare domain	Same network nidhog.dk: 104.21.19.190 172.67.188.144 2606:4700:3030::6815:13be 2606:4700:3036::ac43:bc90 (AS13335) www.nidhog.dk: 104.21.19.190 172.67.188.144 2606:4700:3030::6815:13be 2606:4700:3036::ac43:bc90 (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

✍️ DKIM keys#

2 found

Selector	CNAME	Key
selector1	selector1-nidhog-dk._domainkey.sbathordin.onmicrosoft.com	RSA · ~1024 bit below 2048 bit
selector2	selector2-nidhog-dk._domainkey.sbathordin.onmicrosoft.com	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#

270ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2408731047
Primary NS (MNAME)	bob.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-14 18:11:53

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-04-02
Expires	2036-04-30 (3480d)

🔗 Same registrant#

2 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
dvalin.dk	Punktum dk A/S (direct)
yggdrasilcommodities.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

148ms

162ms

151ms

AAAA

171ms

TXT

362ms

CAA

216ms

HTTPS

201ms

TLSA

1187ms

SOA

0ms

MTA-STS

232ms

DNSSEC

270ms

SRV

279ms

Total

5216ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-17 19:58:08	3039ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-16 19:08:47	3417ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-15 18:45:36	1396ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-14 17:45:22	1809ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-22 14:05:06	1502ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-07 03:31:56	1705ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-28 07:03:10	1677ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-18 18:59:36	4330ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-17 00:57:47	8199ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-07 18:15:56	9626ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-14 13:45:05	1570ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-06 06:02:49 shown	5216ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-26 16:47:07	6268ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 03:56:44	2754ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 15:30:17	787ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 23:24:57	1430ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 05:15:45	1216ms	2 NS 2 A 1 MX	🔒 Secure