jacobtand.dk

📜 Historical scan 2026-06-23 16:10:09 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jacobtand.dk is a .dk domain served by 2 nameservers (c3po.mrmeee.dk, degobah.mrmeee.dk). It was registered on 5 June 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 91.226.144.139 is hosted by Netnoerden ApS (AS216275) in Denmark. Mail is handled by mail.jacobtand.dk. The zone is not DNSSEC-signed, 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 105ms

Nameserver	IP addresses	PTR	ASN / ISP
c3po.mrmeee.dk	91.226.144.140	mail.mrmeee.dk	AS216275 Netnoerden ApS
degobah.mrmeee.dk	37.187.95.186	ns3036985.ip-37-187-95.eu	AS16276 OVH SAS

🌍 A Records#

1 records 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
91.226.144.139	600s	mail.jacobtand.dk	AS216275	Netnoerden ApS	91.226.144.0/23	🇩🇰 Denmark	Frederiksberg

📧 MX Records#

1 records 78ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mail.jacobtand.dk	91.226.144.139	mail.jacobtand.dk	AS216275 Netnoerden ApS

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	91.226.144.139
🔶 Autoconfig	91.226.144.139

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 228ms

TXT Record
v=spf1 a mx ptr ip4:80.209.95.131 mx:jacobtand.dk ~all

✉️ SPF#

Policy	Record (jacobtand.dk)
~all (soft fail)	v=spf1 a mx ptr ip4:80.209.95.131 mx:jacobtand.dk ~all

📨 DMARC#

Policy	Record (_dmarc.jacobtand.dk)
p=none (monitor only)	v=DMARC1;p=none;sp=quarantine;pct=100;rua=mailto:dmarcreports@jacobtand.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#

latest probe, not this scan · checked 2026-10-15 21:45:15

www	91.226.144.139 (AS216275) (address records, no CNAME)
www vs bare domain	Same network jacobtand.dk: 91.226.144.139 (AS216275) www.jacobtand.dk: 91.226.144.139 (AS216275)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

95ms

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

🏷️ SOA#

79ms

Field	Value
Serial	2026061801
Primary NS (MNAME)	c3po.mrmeee.dk
Responsible (RNAME)	hostmaster@jacobtand.dk
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-15 20:49:20

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2013-06-05
Expires	2027-06-30 (255d)

🔗 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
solroedimplantatklinik.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

105ms

42ms

78ms

AAAA

67ms

TXT

228ms

CAA

92ms

HTTPS

41ms

TLSA

163ms

SOA

79ms

MTA-STS

87ms

DNSSEC

95ms

SRV

146ms

Total

633ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-15 21:45:15	4557ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-08 09:45:55	5277ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 06:47:51	679ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-01 02:47:33	7038ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-25 01:35:58	1859ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-24 01:06:45	762ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-15 17:21:50	6487ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-08 14:09:34	5045ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-03 21:18:33	1770ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-27 20:39:19	1758ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-20 21:35:56	13722ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-13 19:01:02	2816ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-06 04:54:41	4757ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-31 14:43:09	3919ms	2 NS 1 A 1 MX	❓ Unknown
2026-07-23 02:56:57	7529ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-17 09:35:16	2794ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-10 09:00:06	14842ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-03 11:08:26	1098ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-26 09:39:38	4519ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 16:10:09 shown	633ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-18 22:42:08	2321ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-17 15:15:47	568ms	2 NS 1 A 1 MX	🔓 Insecure