mathiasholmgaard.dk

📜 Historical scan 2026-09-28 06:52:51  ·  ← 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   36ms
NameserverIP addressesPTRASN / 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   40ms
IPTTLPTRASNISP / OrgCIDRCountryCity
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   29ms
PriorityTTLMail ServerIP addressesPTRASN
1 3600s aspmx.l.google.com 173.194.220.26
2a00:1450:4010:c20::1a		 lk-in-f26.1e100.net
yulppbn-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
5 3600s alt1.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
5 3600s alt2.aspmx.l.google.com 173.194.41.27
173.194.41.27
2404:6800:4001:c01::1a		 yukulwh-in-f27.1e100.net
mad01s14-in-f27.1e100.net
yukulwh-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC
AS15169 Google LLC
10 3600s alt3.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
10 3600s alt4.aspmx.l.google.com 108.177.125.26
2404:6800:4008:c01::1a		 tp-in-f26.1e100.net
tp-in-f26.1e100.net		 AS15169 Google LLC
AS15169 Google LLC

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover104.21.2.198
🔶 Autoconfig104.21.2.198

🔷 AAAA Records (IPv6)#

2 records   43ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
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   37ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.2.198,172.67.129.154 ech=AEX+DQBBkAAgACDpyBXSgx4JC5zCezLA7rN0dHy2APSLOq3ni9z/ASPJTgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:2c6,2606:4700:3037::ac43:819a

📝 TXT Records#

2 records   173ms
TXT Record
google-site-verification=KHYwNnzu5qGZGkuR9-8fWauCanzF7rLvPxndGdFI1DE
v=spf1 include:_spf.google.com ~all

✉️ SPF#

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

📨 DMARC#

PolicyRecord (_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   42ms
FlagsTagValue
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
www104.21.2.198 172.67.129.154 2606:4700:3030::6815:2c6 2606:4700:3037::ac43:819a (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

✍️ DKIM keys#

1 found
SelectorCNAMEKey
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#

112ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

0ms
FieldValue
Serial2415991469
Primary NS (MNAME)marissa.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-15 21:33:37
FieldValue
RegistrarSimply.com A/S
Registered2020-10-05
Expires2026-10-31 (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).

DomainRegistrar
cybersmed.dkSimply.com A/S
cybersmeden.dkSimply.com A/S
staticstudio.dkSimply.com A/S
📋 WHOIS#

⏱️ Lookup Timing#

NS
36ms
A
40ms
MX
29ms
AAAA
43ms
TXT
173ms
CAA
42ms
HTTPS
37ms
TLSA
124ms
SOA
0ms
MTA-STS
50ms
DNSSEC
112ms
SRV
71ms
Total
1676ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
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 shown 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 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
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