mostersskur.dk DNS records

🖥️ Nameservers2 records 67ms

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 Records2 records 46ms

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 Records5 records 71ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	aspmx.l.google.com	142.251.1.26 2a00:1450:4010:c20::1b	lb-in-f26.1e100.net yulppbn-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	300s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
10	300s	alt3.aspmx.l.google.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	300s	alt4.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1b	tp-in-f26.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	172.67.220.183
🔶 Autoconfig	104.21.51.43

🔷 AAAA Records (IPv6)2 records 57ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:332b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::ac43:dcb7	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 62ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.51.43,172.67.220.183 ech=AEX+DQBBMgAgACB2gyxIfgnmTyLKl+z5EdXkR9TwlIiJEVN8uT3zS3XZRwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:332b,2606:4700:3037::ac43:dcb7

📝 TXT Records1 records 192ms

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

🔗 TLSA / DANE

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

🔐 DNSSEC103ms

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

🏷️ SOA0ms

Field	Value
Serial	2412178170
Primary NS (MNAME)	alfred.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

67ms

A

46ms

MX

71ms

AAAA

57ms

TXT

192ms

CAA

78ms

HTTPS

62ms

TLSA

93ms

SOA

0ms

MTA-STS

88ms

DNSSEC

103ms

SRV

81ms

Total

1095ms

🕐 Scan History

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