seistrup.dk DNS records

🖥️ Nameservers7 records 189ms

Nameserver	IP addresses	PTR	ASN / ISP
ns21.cloudns.net	109.201.133.61 2a00:1768:1001:9::21	ns21.cloudns.net ns21.cloudns.net	AS43350 NForce Entertainment B.V. AS43350 NForce Entertainment B.V.
ns23.cloudns.net	185.10.19.116 2a07:8dc0:1b:0:72:4eff:febc:d52d	ns23.cloudns.net ns23.cloudns.net	AS35661 Virtua Systems SAS AS35661 Virtua Systems SAS
ns24.cloudns.net	185.206.180.71 2a0b:1640:1:1:1:1:213:845c	ns24.cloudns.net ns24.cloudns.net	AS205787 Public Cloud Ltd. AS205787 Public Cloud Ltd.
pns21.cloudns.net	185.136.96.96 2a06:fb00:1::1:96	pns21.cloudns.net pns21.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
pns22.cloudns.net	185.136.97.96 2a06:fb00:1::2:96	pns22.cloudns.net pns22.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
pns23.cloudns.net	185.136.98.96 2a06:fb00:1::3:96	pns23.cloudns.net pns23.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd
pns24.cloudns.net	185.136.99.96 2a06:fb00:1::4:96	pns24.cloudns.net pns24.cloudns.net	AS203391 Cloud DNS Ltd AS203391 Cloud DNS Ltd

🌍 A Records1 records 233ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.107.169.23	—	bornmesh.dk	AS24800	BornFiber Service Provider ApS	185.107.168.0/22	🇩🇰 Denmark	Rønne

📧 MX Records1 records 338ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	smtp.google.com	108.177.14.26 108.177.14.27 173.194.73.26 209.85.233.26 209.85.233.27 2a00:1450:4010:c03::1a 2a00:1450:4010:c03::1a 2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1a 2a00:1450:4010:c0f::1b 2a00:1450:4010:c0f::1b	lt-in-f26.1e100.net lt-in-f27.1e100.net lq-in-f26.1e100.net lr-in-f26.1e100.net lr-in-f27.1e100.net lr-in-f26.1e100.net lr-in-x1a.1e100.net lr-in-x1b.1e100.net lr-in-f27.1e100.net lt-in-f26.1e100.net lt-in-x1a.1e100.net lt-in-f27.1e100.net lt-in-x1b.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔶 Autoconfig	www.seistrup.dk → 185.107.169.23

🔷 AAAA Records (IPv6)1 records 287ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:4820:3f60:f00:dacb:8aff:feba:55d7	—	bornmesh.dk	AS24800	BornFiber Service Provider ApS	2a00:4820:0:0:0:0:0:0/32	🇩🇰 Denmark	Rønne

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 385ms

Service	Priority	Weight	Port	Target
_imaps._tcp	10	10	993	imap.gmail.com

📝 TXT Records2 records 641ms

TXT Record
google-site-verification=qCujEKz8HoDdSXKZjhcmh6bOJ6yAr6SnfyaogMiYBa8
v=spf1 include:universalspf.org -include:x.universalspf.org a include:_spf.szn.dk include:_spf.google.com -all

✉️ SPF

Policy	Record (seistrup.dk)
-all (hard fail)	v=spf1 include:universalspf.org -include:x.universalspf.org a include:_spf.szn.dk include:_spf.google.com -all

📨 DMARC

Policy	Record (_dmarc.seistrup.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@seistrup.dk; ruf=mailto:dmarc@seistrup.dk; fo=1; adkim=r; aspf=r; pct=100; rf=afrf; ri=86400

📬 MTA-STS610ms

Check	Result
Status	🔒 Enforce
TXT record (_mta-sts)	✓ Found
HTTPS policy	✓ Valid
Mode	enforce
Policy ID	20260118123456
max_age	2629744s
Policy MX	smtp.google.com

📈 TLSRPT

Status	Report address (rua)
✓ Enabled	mailto:mta-sts@seistrup.dk

📜 CAA Records3 records 349ms

Flags	Tag	Value
0	iodef	mailto:klaus@seistrup.dk
0	issue	letsencrypt.org
0	issue	zerossl.com

🔗 TLSA / DANE1 records 875ms

Service / Owner	Type	Cert association
HTTPS _443._tcp.seistrup.dk	DANE-EE · SPKI · SHA-256	2F9A1C46C8F3FE67BEE5AE4C69C2272C…

🔐 DNSSEC469ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	fully validated

🏷️ SOA328ms

Field	Value
Serial	2026060701
Primary NS (MNAME)	ns21.cloudns.net
Responsible (RNAME)	kas@port53.dk
Refresh	7200s
Retry	1800s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

189ms

A

233ms

MX

338ms

AAAA

287ms

TXT

641ms

CAA

349ms

HTTPS

188ms

TLSA

875ms

SOA

328ms

MTA-STS

610ms

DNSSEC

469ms

SRV

385ms

Total

8447ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-17 07:04:51	11769ms	7 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 23:42:51	12694ms	7 NS 1 A 1 MX	🔒 Secure	View
2026-08-01 02:37:31	8492ms	7 NS 1 A 1 MX	🔒 Secure	View
2026-07-12 17:37:10	10483ms	7 NS 1 A 1 MX	🔒 Secure	View
2026-07-02 17:06:44	11852ms	7 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 17:58:58	10874ms	7 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 09:31:30	1158ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-24 03:51:48	6105ms	7 NS 1 A 1 MX	🔒 Secure	View
2026-06-18 05:22:46	8447ms	7 NS 1 A 1 MX	🔒 Secure	View