seistrup-nagel.dk

📜 Historical scan 2026-06-25 15:52:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

seistrup-nagel.dk is a .dk domain served by 2 nameservers (aron.ns.cloudflare.com, thomas.ns.cloudflare.com). It was registered on 10 November 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.92.156 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by aspmx1.migadu.com, aspmx2.migadu.com. The zone is DNSSEC-signed and validates, 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 55ms

Nameserver	IP addresses	PTR	ASN / ISP
aron.ns.cloudflare.com	108.162.192.69 172.64.32.69 173.245.58.69 2606:4700:50::adf5:3a45 2803:f800:50::6ca2:c045 2a06:98c1:50::ac40:2045	aron.ns.cloudflare.com aron.ns.cloudflare.com aron.ns.cloudflare.com aron.ns.cloudflare.com aron.ns.cloudflare.com aron.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
thomas.ns.cloudflare.com	108.162.193.238 172.64.33.238 173.245.59.238 2606:4700:58::adf5:3bee 2803:f800:50::6ca2:c1ee 2a06:98c1:50::ac40:21ee	thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.ns.cloudflare.com thomas.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 81ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.92.156	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.195.105	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

2 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3000s	aspmx1.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS
20	3000s	aspmx2.migadu.com	135.125.171.180 135.125.222.87 2001:41d0:303:648a::1 2001:41d0:700:19b4::1 2001:41d0:700:1a57::1 51.38.57.138	ns3160119.ip-135-125-171.eu ns3160230.ip-135-125-222.eu — — — mizu0.migadu.com	AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS AS16276 OVH SAS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	62.66.143.162
🔶 Autoconfig	autoconfig.migadu.com → 141.94.97.141

🔷 AAAA Records (IPv6)#

2 records 70ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:c369	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::6815:5c9c	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 110ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.92.156,172.67.195.105 ech=AEX+DQBBKAAgACCOZsUGw1hEujRcCahEhRJJlhCYaPV6CSL0wjOIAbT3XAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:c369,2606:4700:3034::6815:5c9c

🔌 SRV Records#

2 records 525ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	1	443	autodiscover.migadu.com
_imaps._tcp	0	1	993	imap.migadu.com

📝 TXT Records#

2 records 212ms

TXT Record
hosted-email-verify=bcytwwln
v=spf1 include:spf.migadu.com -all

✉️ SPF#

Policy	Record (seistrup-nagel.dk)
-all (hard fail)	v=spf1 include:spf.migadu.com -all

📨 DMARC#

Policy	Record (_dmarc.seistrup-nagel.dk)
p=quarantine	v=DMARC1; p=quarantine;

📬 MTA-STS#

✗ No MTA-STS policy — SMTP TLS not enforced

📈 TLSRPT#

✗ No TLSRPT record — no SMTP TLS failure reporting

📜 CAA Records#

10 records 95ms

Flags	Tag	Value
0	issue	comodoca.com
0	issue	digicert.com; cansignhttpexchanges=yes
0	issue	letsencrypt.org
0	issue	pki.goog; cansignhttpexchanges=yes
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 2026-10-14 04:42:10

www CNAME	ingress-ext.seisna.eu (all on seisna.eu) → 141.95.95.134 (AS16276)
www vs bare domain	Same network seistrup-nagel.dk: 141.95.95.134 (AS16276) www.seistrup-nagel.dk: 141.95.95.134 (AS16276)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	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: 5/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.seistrup-nagel.dk	DbEixPCECs4MuvkF4U1jQpbe4XFny6Zaslh7paccaZY
TXT	_acme-challenge.seistrup-nagel.dk	a86dyyzF7GI2zaqNg3WIfdEd1oIA1rewmNmWwIMCia4

🔗 TLSA / DANE#

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

🔐 DNSSEC#

125ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2407813820
Primary NS (MNAME)	aron.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 04:14:24

Field	Value
Registrar	Ovh
Registered	2021-11-10
Expires	2026-11-09 (13d)

📋 WHOIS#

⏱️ Lookup Timing#

55ms

81ms

65ms

AAAA

70ms

TXT

212ms

CAA

95ms

HTTPS

110ms

TLSA

69ms

SOA

0ms

MTA-STS

117ms

DNSSEC

125ms

SRV

525ms

Total

1393ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 04:42:10	781ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-11 22:07:52	725ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-28 13:46:13	2274ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-27 13:31:11	3145ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 21:44:05	2000ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-06 20:10:51	11084ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-06 02:04:53	1797ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 16:02:25	2656ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-27 20:53:44	1295ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-15 07:25:11	13037ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-27 11:20:55	1224ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-19 12:32:51	2836ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-07 03:34:26	2365ms	2 NS 1 A 3 MX	🔒 Secure
2026-07-03 13:23:59	11177ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-30 11:35:35	695ms	2 NS 1 A 0 MX	🔒 Secure
2026-06-29 00:25:06	1609ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-28 09:16:04	1470ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-25 15:52:09 shown	1393ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-24 03:36:18	2174ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-18 05:03:52	1401ms	2 NS 2 A 2 MX	🔒 Secure