arendtsen.dk

📜 Historical scan 2026-10-09 13:37:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arendtsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 10 September 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.255.108.229 is hosted by The Infrastructure Group B.V. (AS60404) in The Netherlands. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is DNSSEC-signed and validates, has no 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 79ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 75ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.255.108.229	3600s	—	AS60404	The Infrastructure Group B.V.	5.255.96.0/19	🇳🇱 The Netherlands	Dronten

📧 MX Records#

7 records 222ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	142.251.127.27 2a00:1450:4001:c21::1b	lcfrai-in-f27.1e100.net lcfrai-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	142.250.147.26 2a00:1450:4025:c01::1a	rd-in-f26.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	172.253.152.26 2a00:1450:4010:c22::1b	yulpptr-in-f26.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	142.250.147.27 2a00:1450:4025:c01::1a	rd-in-f27.1e100.net rd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.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
30	43200s	aspmx5.googlemail.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

🔷 AAAA Records (IPv6)#

1 records 75ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a04:52c0:113:9847::1	3600s	—	AS60404	The Infrastructure Group B.V.	2a04:52c0:0:0:0:0:0:0/32	🇳🇱 The Netherlands	Dronten

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 399ms

TXT Record
google-site-verification=NWLvV8StSutPfTezAqfUfK00ZVKjTZ5u2bGSxC7aIDo
keybase-site-verification=jCMDRhdBaONywLyyZjhtFXGu2_M_jq1Ek2FZ8Fx-dHQ
v=spf1 mx a:fw01.arendtsen.dk ip6:2001:67c:25b4::/48 include:aspmx.googlemail.com -all

✉️ SPF#

Policy	Record (arendtsen.dk)
-all (hard fail)	v=spf1 mx a:fw01.arendtsen.dk ip6:2001:67c:25b4::/48 include:aspmx.googlemail.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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-21 15:20:34

www CNAME	arendtsen.dk (all on arendtsen.dk) → 5.255.108.229 2a04:52c0:113:9847::1 (AS60404)
www vs bare domain	Same network arendtsen.dk: 5.255.108.229 2a04:52c0:113:9847::1 (AS60404) www.arendtsen.dk: 5.255.108.229 2a04:52c0:113:9847::1 (AS60404)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

354ms

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

🏷️ SOA#

100ms

Field	Value
Serial	2026100902
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-21 15:35:04

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1999-09-10
Expires	2027-09-30 (343d)

🔗 Same registrant#

2 domains

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
dn42.dk	Punktum dk A/S (direct)
mitdepriliv.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

79ms

75ms

222ms

AAAA

75ms

TXT

399ms

CAA

238ms

HTTPS

240ms

TLSA

1846ms

SOA

100ms

MTA-STS

260ms

DNSSEC

354ms

SRV

259ms

Total

3273ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 15:20:33	3700ms	2 NS 1 A 7 MX	🔓 Insecure
2026-10-16 02:30:22	737ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-09 13:37:31 shown	3273ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-05 07:23:32	1135ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-26 05:51:24	2669ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-23 22:06:19	2354ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-19 00:17:52	2456ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-11 22:03:50	1296ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-28 02:01:33	1169ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-25 08:11:38	3796ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-22 13:37:41	1171ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 13:39:15	841ms	2 NS 1 A 7 MX	🔒 Secure