jernbro.dk

Records from scan: 2026-10-16 02:10:10 · 2888ms total · last checked 2026-10-17 02:35 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jernbro.dk is a .dk domain served by 4 nameservers (dns10.telia.com, dns11.se.telia.net, dns12.se.telia.net and 1 more). It was registered on 6 September 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by jernbro-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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#

4 records 42ms

Nameserver	IP addresses	PTR	ASN / ISP
dns10.telia.com	2001:2040:c001:301::4 81.228.9.98	dns10.telia.com dns10.telia.com	AS3301 Telia Company AB AS3301 Telia Company AB
dns11.se.telia.net	2001:2040:c001:304::4 81.228.9.131	dns11.se.telia.net dns11.se.telia.net	AS3301 Telia Company AB AS3301 Telia Company AB
dns12.se.telia.net	2001:2040:c001:401::5 81.228.10.69	dns12.se.telia.net dns12.se.telia.net	AS3301 Telia Company AB AS3301 Telia Company AB
dns9.telia.com	2001:2040:c001:104::5 81.228.11.184	dns9.telia.com dns9.telia.com	AS3301 Telia Company AB AS3301 Telia Company AB

🌍 A Records#

🌍

No A records found

📧 MX Records#

1 records 1214ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	jernbro-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:c967::c 2a01:111:f403:ca21::8 2a01:111:f403:ca48::12 52.101.103.36 52.101.209.31 52.101.68.27 52.101.73.145	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-cpjpr05cu00204.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-miypr05cu00202.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am6pr02cu00301.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

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 374ms

TXT Record
MS=ms61918014
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (jernbro.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.jernbro.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@14kt1cdr.uriports.com; ruf=mailto:dmarc@14kt1cdr.uriports.com; fo=1

📬 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 2026-10-16 02:10:10

www	NXDOMAIN
www vs bare domain	Neither resolves jernbro.dk: no address www.jernbro.dk: no address
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-jernbro-dk._domainkey.velteccom.k-v1.dkim.mail.microsoft	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: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

142ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

79ms

Field	Value
Serial	1792022400
Primary NS (MNAME)	dns9.telia.com
Responsible (RNAME)	backbone@telia.net
Refresh	21600s
Retry	7200s
Expire	604800s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-08 10:47:17

Field	Value
Registrar	Abion AB
Registered	2024-09-06
Expires	2027-09-05 (322d)

📋 WHOIS#

⏱️ Lookup Timing#

42ms

62ms

1214ms

AAAA

42ms

TXT

374ms

CAA

48ms

HTTPS

55ms

TLSA

911ms

SOA

79ms

MTA-STS

137ms

DNSSEC

142ms

SRV

148ms

Total

2888ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 02:10:10 shown	2888ms	4 NS 0 A 1 MX	🔓 Insecure
2026-10-08 10:44:20	2920ms	4 NS 0 A 1 MX	🔓 Insecure
2026-10-01 09:07:59	3776ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-24 15:22:34	964ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-23 14:22:41	10839ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-18 15:08:02	4609ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-14 00:54:14	1895ms	4 NS 0 A 1 MX	🔓 Insecure
2026-09-04 06:41:35	1932ms	4 NS 0 A 1 MX	🔓 Insecure
2026-08-27 17:15:26	1359ms	4 NS 0 A 1 MX	🔓 Insecure
2026-08-20 17:58:17	2258ms	4 NS 0 A 1 MX	🔓 Insecure
2026-08-14 04:32:36	3174ms	4 NS 0 A 1 MX	🔓 Insecure
2026-08-08 07:50:13	1722ms	4 NS 0 A 1 MX	🔓 Insecure
2026-08-01 18:18:06	1417ms	4 NS 0 A 1 MX	🔓 Insecure
2026-07-23 11:27:52	1299ms	4 NS 0 A 1 MX	🔓 Insecure
2026-07-17 00:50:03	1519ms	4 NS 0 A 1 MX	🔓 Insecure
2026-07-09 04:13:20	3921ms	4 NS 0 A 1 MX	🔓 Insecure
2026-07-03 10:30:48	6627ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-28 16:10:02	2673ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-26 23:17:50	996ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-24 01:45:22	1786ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-22 20:15:48	908ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-19 12:31:59	1377ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-18 18:25:30	4158ms	4 NS 0 A 1 MX	🔓 Insecure
2026-06-17 13:10:29	4102ms	4 NS 0 A 1 MX	🔓 Insecure