tc.dk

📜 Historical scan 2026-06-23 15:37:29 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tc.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 46.183.138.100 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 5 more. 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 36ms

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 40ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.183.138.100	600s	—	AS47292	Sentia Denmark A/S	46.183.138.0/23	🇩🇰 Denmark	—

📧 MX Records#

7 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	142.250.150.26 2a00:1450:4010:c0a::1a 2a00:1450:4010:c0a::1a	la-in-f26.1e100.net lm-in-f26.1e100.net lm-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	172.253.158.27 2404:6800:4000:1025::1b	so-in-f27.1e100.net lcbomp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	108.177.125.27 2404:6800:4008:c01::1a	tp-in-f27.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	172.253.158.27 2404:6800:4003:c26::1b	so-in-f27.1e100.net so-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	108.177.125.27 2404:6800:4003:c26::1a	tp-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx4.googlemail.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx5.googlemail.com	192.178.230.27 2607:f8b0:400e:c1e::1b	yunrtab-in-f27.1e100.net yudlsqd-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

3 records 340ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	autodiscover.gigahost.dk
_xmpp-server._tcp	0	0	5269	xmpp-server1.l.google.com
_xmpp-server._tcp	0	0	5269	xmpp-server.l.google.com

📝 TXT Records#

2 records 364ms

TXT Record
abuse: abuse@tc.dk
google-site-verification=SRfOzL8U33L8nGO3_xhLXrgTd3ZF57ZxxSaTArlhDCw

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 14:33:33

www CNAME	tc.dk (all on tc.dk) → 46.183.138.100 (AS47292)
www vs bare domain	Same network tc.dk: 46.183.138.100 (AS47292) www.tc.dk: 46.183.138.100 (AS47292)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

✍️ DKIM keys#

1 found

Selector	CNAME	Key
google	—	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔗 TLSA / DANE#

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

🔐 DNSSEC#

62ms

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

🏷️ SOA#

73ms

Field	Value
Serial	2026032901
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 2026-10-14 15:07:15

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	1997-01-31
Expires	2027-03-31 (163d)

🔗 Same registrant#

3 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
erdetkage.dk	ONE.COM A/S
membrr.dk	ONE.COM A/S
twomas.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

36ms

40ms

36ms

AAAA

34ms

TXT

364ms

CAA

33ms

HTTPS

237ms

TLSA

50ms

SOA

73ms

MTA-STS

82ms

DNSSEC

62ms

SRV

340ms

Total

903ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 14:33:33	954ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-08 23:58:47	987ms	2 NS 1 A 7 MX	🔒 Secure
2026-10-06 23:46:53	2277ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-30 19:20:30	700ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-26 06:56:35	1116ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-25 06:38:41	908ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-06 20:10:47	1944ms	2 NS 1 A 7 MX	🔒 Secure
2026-09-01 23:36:50	834ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-22 05:35:04	11820ms	2 NS 1 A 7 MX	🔒 Secure
2026-08-09 23:31:57	5319ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-23 15:37:29 shown	903ms	2 NS 1 A 7 MX	🔒 Secure
2026-06-17 13:18:12	866ms	2 NS 1 A 7 MX	🔒 Secure