holmogson.dk

📜 Historical scan 2026-07-03 13:05:35 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holmogson.dk is a .dk domain served by 2 nameservers (gene.ns.cloudflare.com, nash.ns.cloudflare.com). It was registered on 25 January 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.9.148 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. 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 233ms

Nameserver	IP addresses	PTR	ASN / ISP
gene.ns.cloudflare.com	108.162.192.158 172.64.32.158 173.245.58.158 2606:4700:50::adf5:3a9e 2803:f800:50::6ca2:c09e 2a06:98c1:50::ac40:209e	gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com gene.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
nash.ns.cloudflare.com	108.162.193.209 172.64.33.209 173.245.59.209 2606:4700:58::adf5:3bd1 2803:f800:50::6ca2:c1d1 2a06:98c1:50::ac40:21d1	nash.ns.cloudflare.com nash.ns.cloudflare.com nash.ns.cloudflare.com nash.ns.cloudflare.com nash.ns.cloudflare.com nash.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 198ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.9.148	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.160.48	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 249ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	. Null MX — domain accepts no email (RFC 7505)

🔷 AAAA Records (IPv6)#

2 records 249ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::ac43:a030	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:994	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 254ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.9.148,172.67.160.48 ech=AEX+DQBBYwAgACA2MjktE1ABoLt9dNhSxfLHQG7PyLjrVroKjjWujsKeRgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:a030,2606:4700:3037::6815:994

📝 TXT Records#

1 records 772ms

TXT Record
v=spf1 -all

✉️ SPF#

Policy	Record (holmogson.dk)
-all (hard fail)	v=spf1 -all

📨 DMARC#

Policy	Record (_dmarc.holmogson.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:c4e340e1889a40fda9f97e108e06af1b@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 2026-10-14 10:49:30

www	104.21.9.148 172.67.160.48 2606:4700:3031::ac43:a030 2606:4700:3037::6815:994 (AS13335) (address records, no CNAME)
www vs bare domain	Same network holmogson.dk: 104.21.9.148 172.67.160.48 2606:4700:3031::ac43:a030 2606:4700:3037::6815:994 (AS13335) www.holmogson.dk: 104.21.9.148 172.67.160.48 2606:4700:3031::ac43:a030 2606:4700:3037::6815:994 (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: 0/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

432ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2408466405
Primary NS (MNAME)	gene.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-06 19:35:28

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-01-25
Expires	2027-01-31 (101d)

📋 WHOIS#

⏱️ Lookup Timing#

233ms

198ms

249ms

AAAA

249ms

TXT

772ms

CAA

244ms

HTTPS

254ms

TLSA

422ms

SOA

0ms

MTA-STS

301ms

DNSSEC

432ms

SRV

273ms

Total

9791ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 10:49:30	1912ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-06 19:04:44	1471ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-18 13:11:50	1195ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-12 19:19:48	1290ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-20 06:12:56	1104ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-16 23:00:17	1028ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-27 04:03:13	804ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-18 15:17:24	1509ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-03 13:05:35 shown	9791ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-18 15:19:56	895ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 13:39:56	2663ms	2 NS 2 A 0 MX	🔒 Secure