isaer.dk

📜 Historical scan 2026-06-17 15:41:51 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

isaer.dk is a .dk domain served by 3 nameservers (dns1.rackhosting.com, dns2.rackhosting.com, dns3.rackhosting.com). It was registered on 9 March 2007 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 77.247.77.143 is hosted by Rackhosting.com ApS (AS31590) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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#

3 records 228ms

Nameserver	IP addresses	PTR	ASN / ISP
dns1.rackhosting.com	77.247.69.212	dns1.rackhosting.com	AS31590 Rackhosting.com ApS
dns2.rackhosting.com	45.32.187.211	dns2.rackhosting.com	AS20473 The Constant Company, LLC
dns3.rackhosting.com	77.247.69.213	dns3.rackhosting.com	AS31590 Rackhosting.com ApS

🌍 A Records#

1 records 261ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
77.247.77.143	—	vps138.rackhosting.com	AS31590	Rackhosting.com ApS	77.247.64.0/20	🇩🇰 Denmark	—

📧 MX Records#

7 records 273ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	aspmx.l.google.com	2a00:1450:4010:c1e::1b 64.233.164.26	lb-in-f27.1e100.net lf-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt1.aspmx.l.google.com	172.253.158.26 2a00:1450:4013:c1e::1b	so-in-f26.1e100.net yugrqzs-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	—	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4003:c26::1a	tp-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx2.googlemail.com	172.253.158.27 2404:6800:4000:1025::1a	so-in-f27.1e100.net lcbomp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx3.googlemail.com	142.250.147.27 2404:6800:4003:c26::1b	rd-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx4.googlemail.com	192.178.230.27 2404:6800:400b:c01b::1a	yunrtab-in-f27.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	—	aspmx5.googlemail.com	173.194.43.26 2607:f8b0:400e:c1e::1a	yudlsqd-in-f26.1e100.net yudlsqd-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 524ms

TXT Record
google-site-verification=c7xrsLFJNunbdPpTnzwpaG2YxoNjSlS_ztmHplF3Epk
v=spf1 include:outlook.com ~all

✉️ SPF#

Policy	Record (isaer.dk)
~all (soft fail)	v=spf1 include: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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-07 16:11:24

www CNAME	www.isaer.dk.cdn.cloudflare.net (all on cloudflare.net) → 104.21.68.120 172.67.195.85 2606:4700:3034::ac43:c355 2606:4700:3037::6815:4478 (AS13335)
www vs bare domain	Different networks isaer.dk: 77.247.77.143 (AS31590) www.isaer.dk: 104.21.68.120 172.67.195.85 2606:4700:3034::ac43:c355 2606:4700:3037::6815:4478 (AS13335) (all like this)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

498ms

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

🏷️ SOA#

297ms

Field	Value
Serial	1601889899
Primary NS (MNAME)	dns3.rackhosting.com
Responsible (RNAME)	anna@isaer.dk
Refresh	900s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	10800s

📋 Registration#

WHOIS fetched 2026-10-21 21:10:44

Field	Value
Registrar	CURANET A/S
Registered	2007-03-09
Expires	2027-03-31 (160d)

🔗 Same registrant#

1 domain

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
whitedreams.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

228ms

261ms

273ms

AAAA

263ms

TXT

524ms

CAA

254ms

HTTPS

208ms

TLSA

806ms

SOA

297ms

MTA-STS

293ms

DNSSEC

498ms

SRV

0ms

Total

5322ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-07 16:11:24	681ms	3 NS 1 A 7 MX	🔓 Insecure
2026-10-01 04:31:58	883ms	3 NS 1 A 7 MX	🔓 Insecure
2026-06-21 05:12:31	681ms	3 NS 1 A 7 MX	🔓 Insecure
2026-06-17 15:41:51 shown	5322ms	3 NS 1 A 7 MX	🔓 Insecure