tre.dk

📜 Historical scan 2026-09-11 17:50:31 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tre.dk is a .dk domain served by 5 nameservers (nordic1.dnsnode.net, ns.hi3gaccess.se, ns2.hi3gaccess.se and 2 more). It was registered on 29 March 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 80.251.200.7 is hosted by Hi3G Access AB (AS44034) in Sweden. Mail is handled by 3-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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#

5 records 120ms

Nameserver	IP addresses	PTR	ASN / ISP
nordic1.dnsnode.net	194.58.192.32 2a01:3f1:32::53	nordic1.dnsnode.net nordic1.dnsnode.net	AS8674 Netnod AB AS8674 Netnod AB
ns.hi3gaccess.se	2a02:aa0::53 80.251.192.244	ns.hi3gaccess.se ns.hi3gaccess.se	AS44034 Hi3G Access AB AS44034 Hi3G Access AB
ns2.hi3gaccess.se	2a02:aa0::54 80.251.192.245	ns2.hi3gaccess.se ns2.hi3gaccess.se	AS44034 Hi3G Access AB AS44034 Hi3G Access AB
nsp.dnsnode.net	194.58.198.32 2a01:3f1:3032::53	nsp.dnsnode.net nsp.dnsnode.net	AS56908 Netnod AB AS56908 Netnod AB
nsu.dnsnode.net	185.42.137.98 2a01:3f0:400::32	nsu.dnsnode.net nsu.dnsnode.net	AS8674 Netnod AB AS8674 Netnod AB

🌍 A Records#

1 records 162ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
80.251.200.7	1200s	—	AS44034	Hi3G Access AB	80.251.192.0/20	🇸🇪 Sweden	—

📧 MX Records#

1 records 133ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	1200s	3-dk.mail.protection.outlook.com	52.101.185.21 52.101.68.32 52.101.73.1 52.101.73.126	mail-zrxpr05cu00105.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-am3pr04cu00501.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

1 records 148ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:aa0:28:a000::1007	1200s	—	AS44034	Hi3G Access AB	2a02:aa0:0:0:0:0:0:0/29	🇸🇪 Sweden	—

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 167ms

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

📝 TXT Records#

6 records 262ms

TXT Record
_globalsign-domain-verification=cRKJsdrgOVVlOK5IqZGnTqfXQmgkCnTqzwrWJZCuW3
_globalsign-domain-verification=ooZyX5dwPlZr6MlRroUPrD3buoNbSRur5UcTfZhopl
_globalsign-domain-verification=WqaawjxkjWQrHPl63G07_AvEzFsNZe_2RFfL0Hs0th
MS=ms50317184
T75N7A2LgfvCDezObrcB4b63vACNbdUzpxjF54MivW1BAab7NsA0UJgInGKe7Jy2K5KHKE5vYny9piOwP2joTA==
v=spf1 include:tre.se include:support.zendesk.com -all

✉️ SPF#

Policy	Record (tre.dk)
-all (hard fail)	v=spf1 include:tre.se include:support.zendesk.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 2026-10-16 08:23:02

www	80.251.200.7 2a02:aa0:28:a000::1007 (AS44034) (address records, no CNAME)
www vs bare domain	Same network tre.dk: 80.251.200.7 2a02:aa0:28:a000::1007 (AS44034) www.tre.dk: 80.251.200.7 2a02:aa0:28:a000::1007 (AS44034)
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: 10/10 · policy: -all

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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

201ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✓ Found
Flags	unsigned answer

🏷️ SOA#

0ms

Field	Value
Serial	2026091100
Primary NS (MNAME)	ns.hi3gaccess.se
Responsible (RNAME)	hostmaster@tre.se
Refresh	14400s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 Registration#

WHOIS fetched 2026-10-15 08:10:28

Field	Value
Registrar	CSC Digital Brand Service, Inc
Registered	2000-03-29
Expires	2027-03-31 (165d)

🔗 Same registrant#

13 domains

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
3.dk	CSC Digital Brand Service, Inc
3business.dk	CSC Digital Brand Service, Inc
3iot.dk	CSC Digital Brand Service, Inc
3mail.dk	CSC Digital Brand Service, Inc
3shop.dk	CSC Digital Brand Service, Inc
3view.dk	CSC Digital Brand Service, Inc
3webshop.dk	CSC Digital Brand Service, Inc
business3.dk	CSC Digital Brand Service, Inc
fremtidensbusiness.dk	CSC Digital Brand Service, Inc
hi3gdenmark.dk	CSC Digital Brand Service, Inc
mit3.dk	CSC Digital Brand Service, Inc
mitoister.dk	CSC Digital Brand Service, Inc
oister.dk	CSC Digital Brand Service, Inc

📋 WHOIS#

⏱️ Lookup Timing#

120ms

162ms

133ms

AAAA

148ms

TXT

262ms

CAA

145ms

HTTPS

166ms

TLSA

668ms

SOA

0ms

MTA-STS

163ms

DNSSEC

201ms

SRV

167ms

Total

2278ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-16 08:23:01	3569ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-13 23:33:30	1102ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-12 22:45:02	980ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-11 22:26:00	1668ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-09 18:33:59	1329ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-08 16:45:03	1859ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-07 16:16:36	4038ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-05 12:42:21	1755ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-03 12:23:36	979ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-02 12:22:39	1546ms	5 NS 1 A 1 MX	🔓 Insecure
2026-10-01 21:25:41	3460ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-30 21:18:15	1269ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-29 23:49:16	2216ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-27 23:25:13	1185ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-26 23:12:12	1004ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-25 23:02:06	1102ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-23 21:51:29	1227ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-18 18:07:08	2119ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-16 21:57:18	2302ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-11 17:50:31 shown	2278ms	5 NS 1 A 1 MX	🔓 Insecure
2026-09-04 12:47:33	2406ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-31 16:31:09	6510ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-31 08:45:10	2244ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-29 19:16:01	1914ms	5 NS 1 A 1 MX	🔓 Insecure
2026-08-26 19:22:44	2047ms	5 NS 1 A 1 MX	🔓 Insecure