seierup.dk DNS records

🖥️ Nameservers2 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
jasper.ns.cloudflare.com	108.162.195.182 162.159.44.182 172.64.35.182 2606:4700:58::a29f:2cb6 2803:f800:50::6ca2:c3b6 2a06:98c1:50::ac40:23b6	jasper.ns.cloudflare.com jasper.ns.cloudflare.com jasper.ns.cloudflare.com jasper.ns.cloudflare.com jasper.ns.cloudflare.com jasper.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
tina.ns.cloudflare.com	108.162.192.230 172.64.32.230 173.245.58.230 2606:4700:50::adf5:3ae6 2803:f800:50::6ca2:c0e6 2a06:98c1:50::ac40:20e6	tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com tina.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.58.55	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.168.4	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 37ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	seierup-dk.mail.protection.outlook.com	2a01:111:f403:ca04::5 2a01:111:f403:ca04::e 2a01:111:f403:ca09::6 2a01:111:f403:ca09::c 52.101.103.140 52.101.68.25 52.101.68.3 52.101.68.36	mail-db3pr0202cu00205.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.24

🔷 AAAA Records (IPv6)2 records 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:3a37	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::ac43:a804	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 39ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.58.55,172.67.168.4 ech=AEX+DQBBsQAgACCgLhcIuy3fqEuNGgfUAMEy4nXJGfFjRnmDovkpP+QkBwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:3a37,2606:4700:3033::ac43:a804

📝 TXT Records3 records 194ms

TXT Record
google-site-verification=1J4a8sDgD4W3Zzu7ikggyqbcUtxWP526f5TW7JtMR9E
MS=ms67320452
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (seierup.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC83ms

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	2413003753
Primary NS (MNAME)	jasper.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

53ms

A

38ms

MX

37ms

AAAA

52ms

TXT

194ms

CAA

52ms

HTTPS

39ms

TLSA

622ms

SOA

0ms

MTA-STS

53ms

DNSSEC

83ms

SRV

80ms

Total

1354ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 10:23:29	1354ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-24 07:03:56	2046ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-15 18:45:32	5852ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-21 15:36:22	1583ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-02 17:38:34	1254ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 20:30:05	1629ms	2 NS 2 A 1 MX	🔓 Insecure	View