jbk-as.dk

📜 Historical scan 2026-10-03 01:45:19 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jbk-as.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 20 January 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.247 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by jbkas-dk0i.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no 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#

3 records 186ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 188ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.247	3600s	linux6.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 211ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	jbkas-dk0i.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca09::22 2a01:111:f403:ca3c::6 2a01:111:f403:ca48::10 52.101.103.36 52.101.181.153 52.101.185.114 52.101.185.21	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-am7pr02cu00302.inbound.protection.outlook.com mail-zrxpr04cu00106.inbound.protection.outlook.com mail-miypr05cu00100.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-zrxpr04cu00102.inbound.protection.outlook.com mail-zrxpr05cu00105.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 442ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 488ms

TXT Record
MS=ms54282532
v=spf1 include:spf.protection.outlook.com include:spf.simply.com -all

✉️ SPF#

Policy	Record (jbk-as.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:spf.simply.com -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 2026-10-13 14:26:20

www	185.21.40.247 (AS48854) (address records, no CNAME)
www vs bare domain	Same network jbk-as.dk: 185.21.40.247 (AS48854) www.jbk-as.dk: 185.21.40.247 (AS48854)
Wildcard	No
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-jbkas-dk0i._domainkey.jfkdk.onmicrosoft.com	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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

350ms

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

🏷️ SOA#

87ms

Field	Value
Serial	2026100200
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-12 23:43:08

Field	Value
Registrar	CURANET A/S
Registered	2025-01-20
Expires	2031-01-19 (1552d)

🔗 Same registrant#

10 domains

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
avenorep.dk	CURANET A/S
bil-skanderborg.dk	CURANET A/S
bstbyg.dk	CURANET A/S
bt-h.dk	CURANET A/S
jfk-as.dk	CURANET A/S
montageentreprisen.dk	CURANET A/S
okgrafisk.dk	CURANET A/S
papegojen.dk	CURANET A/S
roski.dk	CURANET A/S
sebo.dk	CURANET A/S

📋 WHOIS#

⏱️ Lookup Timing#

186ms

188ms

211ms

AAAA

197ms

TXT

488ms

CAA

181ms

HTTPS

164ms

TLSA

1022ms

SOA

87ms

MTA-STS

225ms

DNSSEC

350ms

SRV

442ms

Total

2496ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 14:26:20	1144ms	3 NS 1 A 1 MX	🔓 Insecure
2026-10-03 01:45:19 shown	2496ms	3 NS 1 A 1 MX	🔓 Insecure
2026-09-02 10:41:20	717ms	3 NS 1 A 1 MX	🔓 Insecure
2026-07-02 09:40:19	830ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-25 04:19:27	1378ms	3 NS 1 A 1 MX	🔓 Insecure
2026-06-22 14:28:47	1027ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 11:44:24	850ms	3 NS 1 A 1 MX	🔓 Insecure