sepstrup.dk

📜 Historical scan 2026-06-24 22:54:21 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

sepstrup.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 28 November 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.19 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed and validates, publishes a 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#

2 records 237ms

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 229ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.19	3600s	linux12.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

2 records 195ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	3600s	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 1039ms

TXT Record
v=spf1 include:spf.onlinemail.io -all

✉️ SPF#

Policy	Record (sepstrup.dk)
-all (hard fail)	v=spf1 include:spf.onlinemail.io -all

📨 DMARC#

Policy	Record (_dmarc.sepstrup.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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 21:33:53

www	185.21.40.19 (AS48854) (address records, no CNAME)
www vs bare domain	Same network sepstrup.dk: 185.21.40.19 (AS48854) www.sepstrup.dk: 185.21.40.19 (AS48854)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

566ms

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

🏷️ SOA#

213ms

Field	Value
Serial	2025121501
Primary NS (MNAME)	ns1.curanet.dk
Responsible (RNAME)	hostmaster@curanet.dk
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-06 00:07:27

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2017-11-28
Expires	2026-11-30 (44d)

📋 WHOIS#

⏱️ Lookup Timing#

237ms

229ms

195ms

AAAA

226ms

TXT

1039ms

CAA

382ms

HTTPS

522ms

TLSA

148ms

SOA

213ms

MTA-STS

227ms

DNSSEC

566ms

SRV

555ms

Total

2451ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-29 20:26:11	399ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-24 07:32:41	467ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-05 22:13:20	583ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-24 22:54:21 shown	2451ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-23 04:26:16	943ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-22 02:56:20	562ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 19:51:32	657ms	2 NS 1 A 2 MX	🔒 Secure