jdb-elteknik.dk

📜 Historical scan 2026-07-16 18:43:33 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jdb-elteknik.dk is a .dk domain served by 2 nameservers (johnny.ns.cloudflare.com, maxine.ns.cloudflare.com). It was registered on 23 July 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 162.159.152.23 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.onlinemail.io, mx2.onlinemail.io. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 50ms

Nameserver	IP addresses	PTR	ASN / ISP
johnny.ns.cloudflare.com	108.162.195.186 162.159.44.186 172.64.35.186 2606:4700:58::a29f:2cba 2803:f800:50::6ca2:c3ba 2a06:98c1:50::ac40:23ba	johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com johnny.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
maxine.ns.cloudflare.com	108.162.194.179 162.159.38.179 172.64.34.179 2606:4700:50::a29f:26b3 2803:f800:50::6ca2:c2b3 2a06:98c1:50::ac40:22b3	maxine.ns.cloudflare.com maxine.ns.cloudflare.com maxine.ns.cloudflare.com maxine.ns.cloudflare.com maxine.ns.cloudflare.com maxine.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

2 records 38ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.152.23	300s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—
162.159.153.241	300s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	—	—

📧 MX Records#

2 records 50ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	300s	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)#

2 records 33ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:7::a29f:9817	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—
2606:4700:7::a29f:99f1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:0:0:0:0:0:0/41	—	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 316ms

TXT Record
MS=ms46137579
v=spf1 include:spf.onlinemail.io include:spf.mtasv.net ?all

✉️ SPF#

Policy	Record (jdb-elteknik.dk)
?all (neutral)	v=spf1 include:spf.onlinemail.io include:spf.mtasv.net ?all

📨 DMARC#

✗ No DMARC record — mail spoofing not restricted

📬 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 2026-10-21 03:27:45

www	104.21.31.235 172.67.180.192 2606:4700:3031::6815:1feb 2606:4700:3036::ac43:b4c0 (AS13335) (address records, no CNAME)
www vs bare domain	Same network jdb-elteknik.dk: 162.159.152.23 162.159.153.241 2606:4700:7::a29f:9817 2606:4700:7::a29f:99f1 (AS13335) www.jdb-elteknik.dk: 104.21.31.235 172.67.180.192 2606:4700:3031::6815:1feb 2606:4700:3036::ac43:b4c0 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ?all

warn "?all" is neutral: it gives receivers no guidance, much like having no SPF

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.jdb-elteknik.dk	20iQkJDNsPoEGDjohowSQS6OoXn4-GDMA3E20LCxWzc

🔗 TLSA / DANE#

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

🔐 DNSSEC#

9067ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2409658859
Primary NS (MNAME)	johnny.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 03:41:55

Field	Value
Registrar	CURANET A/S
Registered	2010-07-23
Expires	2027-07-31 (279d)

🔗 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
jdb-gruppen.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

50ms

38ms

50ms

AAAA

33ms

TXT

316ms

CAA

51ms

HTTPS

49ms

TLSA

81ms

SOA

0ms

MTA-STS

53ms

DNSSEC

9067ms

SRV

88ms

Total

10034ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-21 03:27:45	1836ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-12 00:15:07	1518ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-06 06:49:31	513ms	2 NS 2 A 2 MX	🔒 Secure
2026-10-01 06:04:08	640ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-26 06:09:50	783ms	2 NS 2 A 2 MX	🔒 Secure
2026-09-04 02:59:26	1227ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-27 06:59:24	1460ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-13 15:17:07	1078ms	2 NS 2 A 2 MX	🔒 Secure
2026-08-09 05:53:29	10017ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-16 18:43:33 shown	10034ms	2 NS 2 A 2 MX	🔒 Secure
2026-07-02 23:57:33	2789ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-23 13:17:16	908ms	2 NS 2 A 2 MX	🔒 Secure
2026-06-17 12:13:37	750ms	2 NS 2 A 2 MX	🔒 Secure