aarhus1900.dk

Records from scan: 2026-07-02 00:49:39 · 705ms total · last checked 2026-10-16 22:24 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

aarhus1900.dk is a .dk domain served by 3 nameservers (ns4.dns-123.net, ns5.dns-123.net, ns6.dns-123.net). It was registered on 26 April 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.42.79 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by server6105.serverpark.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

3 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ns4.dns-123.net	35.198.132.83	83.132.198.35.bc.googleusercontent.com	AS396982 Google LLC
ns5.dns-123.net	35.187.184.173	173.184.187.35.bc.googleusercontent.com	AS396982 Google LLC
ns6.dns-123.net	35.228.54.1	1.54.228.35.bc.googleusercontent.com	AS396982 Google LLC

🌍 A Records#

1 records 57ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.42.79	7200s	vm1492.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	7200s	server6105.serverpark.dk	5.103.46.105	server6105.serverpark.dk	AS44869 FIBIA P/S

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 262ms

TXT Record
brevo-code:84d9c777467077fce62dea3f17fae015
v=spf1 a mx include:_spf.serverpark.dk ~all

✉️ SPF#

Policy	Record (aarhus1900.dk)
~all (soft fail)	v=spf1 a mx include:_spf.serverpark.dk ~all

📨 DMARC#

Policy	Record (_dmarc.aarhus1900.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.com

📬 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#

checked 2026-10-12 14:50:27

www	185.21.42.79 (AS48854) (address records, no CNAME)
www vs bare domain	Same network aarhus1900.dk: 185.21.42.79 (AS48854) www.aarhus1900.dk: 185.21.42.79 (AS48854)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
mail	—	RSA · ~1024 bit below 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: 3/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

74ms

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

🏷️ SOA#

55ms

Field	Value
Serial	2013072964
Primary NS (MNAME)	ns4.dns-123.net
Responsible (RNAME)	admin@dns-123.net
Refresh	28800s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-06 05:53:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-04-26
Expires	2027-06-30 (256d)

📋 WHOIS#

⏱️ Lookup Timing#

50ms

57ms

54ms

AAAA

46ms

TXT

262ms

CAA

58ms

HTTPS

50ms

TLSA

108ms

SOA

55ms

MTA-STS

65ms

DNSSEC

74ms

SRV

58ms

Total

705ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-07-02 00:49:39 shown	705ms	3 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:53:53	5298ms	3 NS 1 A 1 MX	🔒 Secure