mostersskur.dk

Records from scan: 2026-10-12 23:02:07 · 2613ms total · last checked 2026-10-17 08:19 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

mostersskur.dk is a .dk domain served by 2 nameservers (alfred.ns.cloudflare.com, dolly.ns.cloudflare.com). It was registered on 23 May 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.51.43 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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 241ms

Nameserver	IP addresses	PTR	ASN / ISP
alfred.ns.cloudflare.com	108.162.195.131 162.159.44.131 172.64.35.131 2606:4700:58::a29f:2c83 2803:f800:50::6ca2:c383 2a06:98c1:50::ac40:2383	alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com alfred.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
dolly.ns.cloudflare.com	108.162.192.98 172.64.32.98 173.245.58.98 2606:4700:50::adf5:3a62 2803:f800:50::6ca2:c062 2a06:98c1:50::ac40:2062	dolly.ns.cloudflare.com dolly.ns.cloudflare.com dolly.ns.cloudflare.com dolly.ns.cloudflare.com dolly.ns.cloudflare.com dolly.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 187ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.51.43	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.220.183	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

5 records 220ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1a	lcfrai-in-f27.1e100.net lcfrai-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	142.250.147.27 2a00:1450:4025:c01::1b	rd-in-f27.1e100.net rd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c22::1a	yulpptr-in-f26.1e100.net yulpptr-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	192.179.20.27 2404:6800:4000:1027::1b	ncboms-in-f27.1e100.net ncboms-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	192.178.158.26 2404:6800:4013:813::1a	lcdels-in-f26.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	104.21.51.43
🔶 Autoconfig	104.21.51.43

🔷 AAAA Records (IPv6)#

2 records 237ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	300s	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 233ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.21.51.43,172.67.220.183 ech=AEX+DQBBHgAgACAi3GWNki4ewy184hNa/4w2QlzfU9bKntFnxYcdk1xaBgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:332b,2606:4700:3037::ac43:dcb7

📝 TXT Records#

1 records 462ms

TXT Record
v=spf1 mx a ip4:209.42.193.169 ip4:77.235.58.229 include:_spf.google.com ~all

✉️ SPF#

Policy	Record (mostersskur.dk)
~all (soft fail)	v=spf1 mx a ip4:209.42.193.169 ip4:77.235.58.229 include:_spf.google.com ~all

📨 DMARC#

Policy	Record (_dmarc.mostersskur.dk)
p=quarantine	v=DMARC1; p=quarantine;rua=mailto:smtp@mostersskur.dk;

📬 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#

checked 2026-10-12 23:02:08

www	104.21.51.43 172.67.220.183 2606:4700:3035::6815:332b 2606:4700:3037::ac43:dcb7 (AS13335) (address records, no CNAME)
www vs bare domain	Same network mostersskur.dk: 104.21.51.43 172.67.220.183 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.mostersskur.dk: 104.21.51.43 172.67.220.183 2606:4700:3035::6815:332b 2606:4700:3037::ac43:dcb7 (AS13335)
Wildcard	Yes: any name under the zone resolves

✍️ DKIM keys#

2 found

Selector	CNAME	Key
default	—	RSA · ~2048 bit
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: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

319ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

75ms

Field	Value
Serial	2417273489
Primary NS (MNAME)	alfred.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-12 23:14:52

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2014-05-23
Expires	2027-05-31 (225d)

🔗 Same registrant#

1 domain

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
mosters-skur.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

241ms

187ms

220ms

AAAA

237ms

TXT

462ms

CAA

216ms

HTTPS

233ms

TLSA

266ms

SOA

75ms

MTA-STS

269ms

DNSSEC

319ms

SRV

261ms

Total

2613ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 23:02:07 shown	2613ms	2 NS 2 A 5 MX	🔓 Insecure
2026-10-09 12:29:21	1058ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-27 09:05:51	2734ms	2 NS 2 A 5 MX	🔓 Insecure
2026-09-17 18:56:29	1010ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-28 08:04:27	1095ms	2 NS 2 A 5 MX	🔓 Insecure
2026-08-15 05:59:07	9310ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-24 09:02:30	17665ms	2 NS 2 A 5 MX	❓ Unknown
2026-07-18 08:35:53	3560ms	2 NS 2 A 5 MX	🔓 Insecure
2026-07-03 12:54:02	1255ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-28 21:45:04	1298ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-26 19:20:10	1003ms	2 NS 2 A 5 MX	🔓 Insecure
2026-06-25 18:56:27	1422ms	2 NS 1 A 5 MX	🔓 Insecure
2026-06-23 20:43:16	1170ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 22:50:58	1010ms	2 NS 1 A 5 MX	🔓 Insecure
2026-06-18 04:31:43	1186ms	2 NS 1 A 5 MX	🔓 Insecure