zerius.dk

Records from scan: 2026-10-02 15:09:01 · 1001ms total · last checked 2026-10-17 14:24 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

zerius.dk is a .dk domain served by 2 nameservers (ns1.curanet.dk, ns2.curanet.dk). It was registered on 19 November 2020 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.51 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by zerius-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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 39ms

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 23ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.51	600s	linux25.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 28ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	zerius-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:c967::c 2a01:111:f403:ca04::d 2a01:111:f403:ca21::e 52.101.103.140 52.101.103.143 52.101.185.24 52.101.68.25	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-cpjpr05cu00204.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-matpr04cu00306.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-zrxpr07cu00100.inbound.protection.outlook.com mail-db8pr02cu00101.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 → 40.104.116.24
🔶 Autoconfig	autoconfig-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 54ms

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

📝 TXT Records#

3 records 110ms

TXT Record
facebook-domain-verification=8rtcnmb5cmvesfyukc8bq247vvnnbs
MS=ms75268308
v=spf1 include:spf.onlinemail.io include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (zerius.dk)
-all (hard fail)	v=spf1 include:spf.onlinemail.io 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#

checked 2026-10-07 15:46:27

www	185.21.41.51 (AS48854) (address records, no CNAME)
www vs bare domain	Same network zerius.dk: 185.21.41.51 (AS48854) www.zerius.dk: 185.21.41.51 (AS48854)
Wildcard	Yes: any name under the zone resolves
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: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

62ms

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

🏷️ SOA#

29ms

Field	Value
Serial	2026032003
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 2026-10-17 09:44:16

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2020-11-19
Expires	2026-11-30 (43d)

🔗 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
boardcare.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

23ms

28ms

AAAA

31ms

TXT

110ms

CAA

22ms

HTTPS

23ms

TLSA

631ms

SOA

29ms

MTA-STS

49ms

DNSSEC

62ms

SRV

54ms

Total

1001ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 15:09:01 shown	1001ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 16:34:22	1142ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 10:13:31	1240ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 06:31:46	1086ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 21:25:42	699ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 03:32:17	1924ms	2 NS 1 A 1 MX	🔒 Secure