fjero.dk

📜 Historical scan 2026-07-02 00:37:52 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fjero.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 7 June 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.202 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk. The zone is DNSSEC-signed and validates, 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 28ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.202	360s	vm0521.enterprisecloud.nu	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

2 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	3600s	mx1-dk.centerasecurity.dk	128.76.60.167 128.76.60.187 89.233.19.127 89.233.19.127 89.233.19.188 89.233.19.188	mx6.centerasecurity.dk mx6.centerasecurity.dk 127.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 188.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S
20	3600s	mx2-dk.centerasecurity.dk	128.76.60.168 128.76.60.169 89.233.19.128 89.233.19.128 89.233.19.129 89.233.19.129	mx6.centerasecurity.dk mx6.centerasecurity.dk 128.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk 129.0-254.19.233.89.in-addr.arpa mx14.centerasecurity.dk	AS3292 TDC Holding A/S AS3292 TDC Holding A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S AS3308 Norlys Telco A/S

📧 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

🔌 SRV Records#

1 records 32ms

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

📝 TXT Records#

2 records 120ms

TXT Record
MS=ms51063487
v=spf1 a mx ip4:185.17.218.250 ip4:78.156.104.84 ip4:87.49.244.94 ip4:94.137.139.114 include:_spf.centerasecurity.dk include:spf.mailanyone.net include:_netblocks.zitcom.dk include:_netblocks2.zitcom.dk include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all

✉️ SPF#

Policy	Record (fjero.dk)
-all (hard fail)	v=spf1 a mx ip4:185.17.218.250 ip4:78.156.104.84 ip4:87.49.244.94 ip4:94.137.139.114 include:_spf.centerasecurity.dk include:spf.mailanyone.net include:_netblocks.zitcom.dk include:_netblocks2.zitcom.dk include:spf.protection.outlook.com include:spf-de.emailsignatures365.com -all

📨 DMARC#

Policy	Record (_dmarc.fjero.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:dmarc@fjero.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 2026-10-13 05:55:26

www	185.21.41.202 (AS48854) (address records, no CNAME)
www vs bare domain	Same network fjero.dk: 185.21.41.202 (AS48854) www.fjero.dk: 185.21.41.202 (AS48854)
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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 8/10 · policy: -all

warn 8 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

4 records 67ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…
SMTP _25._tcp.mx1-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	D4C349E7B72F5CF4A9CEA358F98947C2…
SMTP _25._tcp.mx2-dk.centerasecurity.dk	DANE-EE · SPKI · SHA-256	56315B43B892E9AEE184919EC6A5821C…

🔐 DNSSEC#

52ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2024111901
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 2026-10-07 00:29:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-06-07
Expires	2027-06-30 (255d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

37ms

27ms

AAAA

29ms

TXT

120ms

CAA

31ms

HTTPS

28ms

TLSA

67ms

SOA

29ms

MTA-STS

36ms

DNSSEC

52ms

SRV

32ms

Total

725ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-08-27 12:34:06	808ms	2 NS 1 A 2 MX	🔒 Secure
2026-07-02 00:37:52 shown	725ms	2 NS 1 A 2 MX	🔒 Secure
2026-06-17 09:22:51	1419ms	2 NS 1 A 2 MX	🔒 Secure