zierolsen.dk

Records from scan: 2026-10-10 18:14:18 · 1513ms total · last checked 2026-10-17 05:55 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

zierolsen.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 4 February 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 46.30.215.115 is hosted by One.com A/S (AS51468) in Denmark. Mail is handled by zierolsen-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. 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 118ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 112ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.215.115	3600s	webcluster2.webpod16-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records#

1 records 179ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	zierolsen-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::10 2a01:111:f403:ca04::e 2a01:111:f403:ca09::26 52.101.103.36 52.101.68.8 52.101.73.120 52.101.91.162	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-db8pr02cu00106.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-miypr05cu00104.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-am7pr02cu00300.inbound.protection.outlook.com mail-matpr04cu00302.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 → 52.98.175.8

🔷 AAAA Records (IPv6)#

1 records 128ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:111:809c:9df3:6539:d30e	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 557ms

TXT Record
MS=ms91902845
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (zierolsen.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#

checked 2026-10-10 18:14:18

www	46.30.215.115 2a02:2350:5:111:809c:9df3:6539:d30e (AS51468) (address records, no CNAME)
www vs bare domain	Same network zierolsen.dk: 46.30.215.115 2a02:2350:5:111:809c:9df3:6539:d30e (AS51468) www.zierolsen.dk: 46.30.215.115 2a02:2350:5:111:809c:9df3:6539:d30e (AS51468)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 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#

170ms

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

🏷️ SOA#

82ms

Field	Value
Serial	2026101005
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-10 18:46:13

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-02-04
Expires	2027-02-28 (133d)

📋 WHOIS#

⏱️ Lookup Timing#

118ms

112ms

179ms

AAAA

128ms

TXT

557ms

CAA

135ms

HTTPS

137ms

TLSA

214ms

SOA

82ms

MTA-STS

173ms

DNSSEC

170ms

SRV

571ms

Total

1513ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-10 18:14:18 shown	1513ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 06:07:34	1099ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-24 07:46:33	801ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 02:43:29	1305ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 07:19:43	1343ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-15 16:30:56	4690ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-13 03:20:34	5227ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-11 13:23:34	2096ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-23 15:02:59	1325ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-22 19:04:02	1173ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 06:34:52	2801ms	2 NS 1 A 1 MX	🔒 Secure