mathiasholmgaard.dk

📜 Historical scan 2026-09-11 02:33:19 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mathiasholmgaard.dk is a .dk domain served by 2 nameservers (marissa.ns.cloudflare.com, rudy.ns.cloudflare.com). It was registered on 5 October 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.2.198 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is not DNSSEC-signed, 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
marissa.ns.cloudflare.com	108.162.194.114 162.159.38.114 172.64.34.114 2606:4700:50::a29f:2672 2803:f800:50::6ca2:c272 2a06:98c1:50::ac40:2272	marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com marissa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rudy.ns.cloudflare.com	108.162.193.229 172.64.33.229 173.245.59.229 2606:4700:58::adf5:3be5 2803:f800:50::6ca2:c1e5 2a06:98c1:50::ac40:21e5	rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.ns.cloudflare.com rudy.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 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.2.198	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.129.154	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	aspmx.l.google.com	142.251.9.26 2a00:1450:4025:c01::1a	rc-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt1.aspmx.l.google.com	192.178.211.27 2404:6800:4000:1025::1b	lcbomp-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	3600s	alt2.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1b	lcdels-in-f27.1e100.net lcdels-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	3600s	alt3.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	3600s	alt4.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.2.198
🔶 Autoconfig	172.67.129.154

🔷 AAAA Records (IPv6)#

2 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::6815:2c6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:819a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 62ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.2.198,172.67.129.154 ech=AEX+DQBBNgAgACAFWF4ZbNqaimziIxiMDP+qF22z7wuNMC5/WR0qAvyqYgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:2c6,2606:4700:3037::ac43:819a

📝 TXT Records#

1 records 209ms

TXT Record
v=spf1 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (mathiasholmgaard.dk)
~all (soft fail)	v=spf1 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.mathiasholmgaard.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:9b57619dd7794f339f559a62321b525f@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#

11 records 47ms

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 2026-10-15 21:14:23

www	104.21.2.198 172.67.129.154 2606:4700:3030::6815:2c6 2606:4700:3037::ac43:819a (AS13335) (address records, no CNAME)
www vs bare domain	Same network mathiasholmgaard.dk: 104.21.2.198 172.67.129.154 2606:4700:3030::6815:2c6 2606:4700:3037::ac43:819a (AS13335) www.mathiasholmgaard.dk: 104.21.2.198 172.67.129.154 2606:4700:3030::6815:2c6 2606:4700:3037::ac43:819a (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	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#

91ms

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	2413948944
Primary NS (MNAME)	marissa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-15 21:33:37

Field	Value
Registrar	Simply.com A/S
Registered	2020-10-05
Expires	2026-10-31 (12d)

🔗 Same registrant#

3 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
cybersmed.dk	Simply.com A/S
cybersmeden.dk	Simply.com A/S
staticstudio.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

48ms

43ms

49ms

AAAA

47ms

TXT

209ms

CAA

47ms

HTTPS

62ms

TLSA

123ms

SOA

0ms

MTA-STS

76ms

DNSSEC

91ms

SRV

74ms

Total

934ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 21:14:23	668ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-12 17:01:05	719ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-11 12:26:41	2886ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-04 07:38:05	867ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-30 07:19:17	2194ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-28 06:52:51	1676ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-27 06:39:55	904ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-21 21:12:36	1708ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-18 04:46:32	1798ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-11 02:33:19 shown	934ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-06 17:49:12	1330ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-28 17:50:54	1363ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-27 16:52:38	1371ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-26 22:17:43	1231ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-24 06:02:48	2149ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-20 01:43:04	2569ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-14 19:49:42	1557ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-13 11:31:12	9653ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-30 21:56:54	1471ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-09 14:51:26	20788ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-30 19:21:15	1874ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 18:11:20	1439ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-27 10:56:51	2364ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-25 10:25:50	1209ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-23 07:48:43	1178ms	0 NS 0 A 0 MX	❓ Unknown