treco.dk

📜 Historical scan 2026-06-21 19:04:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

treco.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 31 January 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 198.202.211.1 is hosted by Cloudflare London, Llc (AS209242) in United States. Mail is handled by treco-dk.k-v1.mx.microsoft. The zone is DNSSEC-signed and validates, publishes a 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 100ms

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 94ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.202.211.1	600s	—	AS209242	Cloudflare London, Llc	198.202.211.0/24	🇺🇸 United States	—

📧 MX Records#

1 records 105ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	treco-dk.k-v1.mx.microsoft	2a01:111:f403:ca04:: 2a01:111:f403:ca09::5 2a01:111:f403:ca09::7 2a01:111:f403:ca09::9 52.101.68.16 52.101.68.27 52.101.68.29 52.101.68.3	mail-db3pr0202cu00100.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-dbapr03cu00105.inbound.protection.outlook.com mail-db7pr03cu00403.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 → 40.104.116.8

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 865ms

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

📝 TXT Records#

7 records 242ms

TXT Record
apple-domain-verification=eCSWeVaG5e31ycQw
brevo-code:edcff7fb54aba1f9ea98056854093f73
facebook-domain-verification=3nf33t32ad6p3jkh1nud3p3rete1o6
google-site-verification=59qdAH1oKwuFji8cbxEqfZBoNqw1gwczkRjYCxMJv3M
google-site-verification=7kNzMC3fDwFzipmUEa5wbqTKCDF0edD1onsCquxmdLM
google-site-verification=eOyF5klB7PXLPOOGwoKwB26I92RU-P6NwVfDqvBgJKE
v=spf1 mx a include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ip4:195.41.178.0/24 ip4:194.239.1.182 ip4:52.164.205.31 include:145609952.spf03.hubspotemail.net -all

✉️ SPF#

Policy	Record (treco.dk)
-all (hard fail)	v=spf1 mx a include:spf.protection.outlook.com include:spf-de.emailsignatures365.com ip4:195.41.178.0/24 ip4:194.239.1.182 ip4:52.164.205.31 include:145609952.spf03.hubspotemail.net -all

📨 DMARC#

Policy	Record (_dmarc.treco.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarc@treco.dk; ruf=mailto:dmarc@treco.dk; sp=none; ri=86400

📬 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 2026-10-13 01:59:48

www CNAME	cdn.webflow.com (all on webflow.com) → 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242)
www vs bare domain	Same network treco.dk: 198.202.211.1 (AS209242) www.treco.dk: 198.202.211.1 2620:cb:2000::1 (AS13335 AS209242)
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: 5/10 · policy: -all

No problems found

🔗 TLSA / DANE#

6 records 386ms

Service / Owner	Type	Cert association
SMTP _25._tcp.treco-dk.k-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	C495D9E40F7E625BE22F83CC64305182…
SMTP _25._tcp.treco-dk.k-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	6EBFF927297A5B3AAF5EAE672252C36A…
SMTP _25._tcp.treco-dk.k-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	133086C7B822371A4A3304F1661A7880…
SMTP _25._tcp.treco-dk.k-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	38D895F5105BC2545822C17A2444F4B0…
SMTP _25._tcp.treco-dk.k-v1.mx.microsoft	DANE-TA · Full cert · SHA-256	5F88694615E4C61686E106B84C3338C6…
SMTP _25._tcp.treco-dk.k-v1.mx.microsoft	DANE-EE · SPKI · SHA-256	A6C267923B26A4A9617EDA73D8DB4FBC…

🔐 DNSSEC#

220ms

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

🏷️ SOA#

100ms

Field	Value
Serial	2026051101
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 2026-10-13 07:46:54

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-01-31
Expires	2027-03-31 (156d)

🔗 Same registrant#

0 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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

100ms

94ms

105ms

AAAA

92ms

TXT

242ms

CAA

107ms

HTTPS

105ms

TLSA

386ms

SOA

100ms

MTA-STS

61ms

DNSSEC

220ms

SRV

865ms

Total

1611ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-30 18:12:11	2270ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 06:04:11	1261ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-26 05:11:00	1790ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-23 14:40:38	2285ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-03 22:08:10	2420ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-29 20:50:58	1467ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-24 18:21:38	1038ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 19:04:27 shown	1611ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 11:57:02	1176ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-21 04:36:24	1369ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-17 22:10:35	1806ms	2 NS 1 A 1 MX	🔒 Secure