holmstrup-el.dk

Records from scan: 2026-10-03 11:09:03 · 4601ms total · last checked 2026-10-19 16:58 (unchanged)

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

holmstrup-el.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 29 August 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.41.148 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by holmstrupel-dk02c.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 103ms

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 78ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.41.148	3600s	linux101.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 76ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	holmstrupel-dk02c.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::10 2a01:111:f403:ca21::8 2a01:111:f403:ca3c::8 52.101.103.137 52.101.209.31 52.101.68.15 52.101.73.123	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-zrxpr05cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-cpjpr05cu00207.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00203.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 → 52.98.154.136

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 464ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	1	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 1141ms

TXT Record
MS=ms53791601
v=spf1 include:spf.protection.outlook.com Include:_spf.curanet.dk ip4:92.62.199.82 -all

✉️ SPF#

Policy	Record (holmstrup-el.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_spf.curanet.dk ip4:92.62.199.82 -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 2026-10-11 03:24:51

www	185.21.41.148 (AS48854) (address records, no CNAME)
www vs bare domain	Same network holmstrup-el.dk: 185.21.41.148 (AS48854) www.holmstrup-el.dk: 185.21.41.148 (AS48854)
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: 2/10 · policy: -all

error include:_spf.curanet.dk has no SPF record: receivers that reach it return permerror (RFC 7208 §5.2)

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.holmstrup-el.dk	wordpress-548337-4007517.cloudwaysapps.com

🔗 TLSA / DANE#

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

🔐 DNSSEC#

370ms

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

🏷️ SOA#

346ms

Field	Value
Serial	2026092001
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 2026-10-03 11:23:30

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2000-08-29
Expires	2027-09-30 (344d)

📋 WHOIS#

⏱️ Lookup Timing#

103ms

78ms

76ms

AAAA

133ms

TXT

1141ms

CAA

156ms

HTTPS

143ms

TLSA

1430ms

SOA

346ms

MTA-STS

172ms

DNSSEC

370ms

SRV

464ms

Total

4601ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 11:09:03 shown	4601ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-02 11:04:47	1991ms	1 NS 0 A 0 MX	❓ Unknown
2026-09-30 10:49:34	804ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-29 22:42:37	787ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 12:25:32	935ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 06:02:29	814ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 10:01:37	7392ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 13:20:26	3707ms	2 NS 1 A 1 MX	🔒 Secure