arnsen.dk

Records from scan: 2026-06-26 08:57:07 · 2470ms total · last checked 2026-10-16 01:04 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

arnsen.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 87.116.13.124 is hosted by GlobalConnect A/S (AS31027) in Denmark. Mail is handled by arnsen-dk.mail.protection.outlook.com, ms18831563.msv1.invalid. 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#

2 records 241ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.curanet.dk	185.25.141.12 2a02:2339:4006:108::123	ns1.curanet.dk ns1.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.curanet.dk	2a02:2339:1:10f::123:123 91.197.248.75	ns2.curanet.dk ns2.curanet.dk	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 236ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
87.116.13.124	3600s	s8.stom.dk	AS31027	GlobalConnect A/S	87.116.0.0/18	🇩🇰 Denmark	—

📧 MX Records#

2 records 207ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	arnsen-dk.mail.protection.outlook.com	2a01:111:f403:ca04::e 2a01:111:f403:ca04::f 2a01:111:f403:ca09::3 2a01:111:f403:ca09::8 52.101.68.25 52.101.68.29 52.101.73.28 52.101.73.8	mail-db8pr02cu00106.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db8pr02cu00101.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am0pr04cu00500.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation
32767	3600s	ms18831563.msv1.invalid	—	—	—

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 369ms

TXT Record
v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:spf.stom.dk include:sendgrid.net-all

✉️ SPF#

Policy	Record (arnsen.dk)
no all — incomplete SPF	v=spf1 include:spf.protection.outlook.com include:spf.simply.com include:spf.stom.dk include:sendgrid.net-all

📨 DMARC#

Policy	Record (_dmarc.arnsen.dk)
p=quarantine	v=DMARC1; p=quarantine; ruf=mailto:dmarc@stom.dk

📬 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 19:07:01

www CNAME	arnsen.dk (all on arnsen.dk) → 87.116.13.124 (AS31027)
www vs bare domain	Same network arnsen.dk: 87.116.13.124 (AS31027) www.arnsen.dk: 87.116.13.124 (AS31027)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

2 found

Selector	CNAME	Key
s1	s1.domainkey.u51109260.wl011.sendgrid.net	RSA · ~2048 bit
s2	s2.domainkey.u51109260.wl011.sendgrid.net	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: 4/10 · policy: none

error include:sendgrid.net-all has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)
warn No "all" and no redirect: mail from unlisted servers gets a neutral result

🔗 TLSA / DANE#

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

🔐 DNSSEC#

334ms

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

🏷️ SOA#

194ms

Field	Value
Serial	2025031001
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

241ms

236ms

207ms

AAAA

198ms

TXT

369ms

CAA

230ms

HTTPS

217ms

TLSA

834ms

SOA

194ms

MTA-STS

254ms

DNSSEC

334ms

SRV

246ms

Total

2470ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-06-26 08:57:07 shown	2470ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-23 07:36:57	1386ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-22 17:50:27	1162ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-16 13:40:31	1897ms	2 NS 1 A 2 MX	🔒 Secure