eljacobsen.dk

📜 Historical scan 2026-09-29 15:48:50 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

eljacobsen.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 16 December 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.109.30 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 26ms

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 24ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.109.30	3600s	linux4.curanet.dk	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records#

2 records 31ms

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 125ms

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

✉️ SPF#

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

📨 DMARC#

Policy	Record (_dmarc.eljacobsen.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 2026-10-08 06:34:48

www	94.231.109.30 (AS48854) (address records, no CNAME)
www vs bare domain	Same network eljacobsen.dk: 94.231.109.30 (AS48854) www.eljacobsen.dk: 94.231.109.30 (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#

63ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026050502
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 2026-10-09 10:21:03

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-12-16
Expires	2026-12-31 (72d)

📋 WHOIS#

⏱️ Lookup Timing#

26ms

24ms

31ms

AAAA

34ms

TXT

125ms

CAA

22ms

HTTPS

39ms

TLSA

56ms

SOA

0ms

MTA-STS

40ms

DNSSEC

63ms

SRV

51ms

Total

389ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 06:34:48	356ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-29 15:48:50 shown	389ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-23 22:32:06	514ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-20 11:14:11	474ms	2 NS 1 A 2 MX	🔒 Secure
2026-09-06 07:41:08	508ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-05 00:04:24	707ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-24 20:58:07	2696ms	2 NS 1 A 2 MX	⚠️ Bogus
2026-06-21 15:56:36	1183ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 06:55:32	473ms	2 NS 1 A 2 MX	🔒 Secure