pre.dk

📜 Historical scan 2026-10-03 00:12:24 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

pre.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 25 November 1998 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.204 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by pre-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 46ms

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 30ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.204	3600s	linux27.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	pre-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::20 2a01:111:f403:ca09::24 2a01:111:f403:ca21::8 52.101.73.126 52.101.91.153 52.101.91.159 52.101.91.21	mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-matpr04cu00100.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-matpr04cu00101.inbound.protection.outlook.com mail-matpr04cu00207.inbound.protection.outlook.com mail-matpr05cu00105.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 → 40.104.116.40
🔶 Autoconfig	185.21.40.204

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 76ms

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

📝 TXT Records#

2 records 193ms

TXT Record
MS=ms80550811
v=spf1 include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF#

Policy	Record (pre.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:_custspf.one.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 2026-10-14 09:15:12

www	185.21.40.204 (AS48854) (address records, no CNAME)
www vs bare domain	Same network pre.dk: 185.21.40.204 (AS48854) www.pre.dk: 185.21.40.204 (AS48854)
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

124ms

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

🏷️ SOA#

39ms

Field	Value
Serial	2026100204
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 01:37:54

Field	Value
Registrar	CURANET A/S
Registered	1998-11-25
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

46ms

30ms

38ms

AAAA

43ms

TXT

193ms

CAA

44ms

HTTPS

36ms

TLSA

742ms

SOA

39ms

MTA-STS

63ms

DNSSEC

124ms

SRV

76ms

Total

1581ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 09:15:12	2357ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-10 01:22:22	1409ms	2 NS 1 A 1 MX	🔓 Insecure
2026-10-08 15:24:47	444ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-03 00:12:24 shown	1581ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-25 22:47:54	690ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-22 10:11:32	9541ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-06 17:56:43	1443ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-02 20:39:36	2106ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-23 20:15:42	1076ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 18:01:23	864ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 14:24:13	4023ms	2 NS 1 A 1 MX	🔒 Secure