cjfiber.dk

📜 Historical scan 2026-07-02 01:16:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cjfiber.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 17 July 2015 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.164 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by cjfiber-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, 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#

2 records 35ms

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 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.164	3600s	webcluster2.webpod17-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cjfiber-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca09:: 2a01:111:f403:ca09::5 2a01:111:f403:ca09::e 52.101.68.18 52.101.68.39 52.101.68.8 52.101.73.15	mail-dbapr03cu00100.inbound.protection.outlook.com mail-am3pr04cu00500.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am9pr04cu00107.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 103ms

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

✉️ SPF#

Policy	Record (cjfiber.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.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 2026-10-18 21:05:22

www CNAME	cjfiber.dk (all on cjfiber.dk) → 46.30.215.164 (AS51468)
www vs bare domain	Same network cjfiber.dk: 46.30.215.164 (AS51468) www.cjfiber.dk: 46.30.215.164 (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-cjfiber-dk._domainkey.cjfiber.onmicrosoft.com	RSA · ~1024 bit below 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#

122ms

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

🏷️ SOA#

37ms

Field	Value
Serial	2025012301
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 13:31:01

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2015-07-17
Expires	2034-07-31 (2842d)

📋 WHOIS#

⏱️ Lookup Timing#

35ms

44ms

28ms

AAAA

49ms

TXT

103ms

CAA

39ms

HTTPS

55ms

TLSA

266ms

SOA

37ms

MTA-STS

56ms

DNSSEC

122ms

SRV

61ms

Total

859ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-23 22:14:01	882ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-12 03:20:17	1067ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-01 01:29:15	1328ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 01:16:34 shown	859ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 22:23:38	65535ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 21:18:36	2561ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 21:11:16	458ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 21:00:37	1691ms	2 NS 1 A 1 MX	🔒 Secure