tcbv.dk

📜 Historical scan 2026-09-17 16:48:59 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tcbv.dk is a .dk domain served by 2 nameservers (dion.ns.cloudflare.com, mia.ns.cloudflare.com). It was registered on 14 October 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx.simply.com. The zone is not DNSSEC-signed, 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 167ms

Nameserver	IP addresses	PTR	ASN / ISP
dion.ns.cloudflare.com	108.162.193.156 172.64.33.156 173.245.59.156 2606:4700:58::adf5:3b9c 2803:f800:50::6ca2:c19c 2a06:98c1:50::ac40:219c	dion.ns.cloudflare.com dion.ns.cloudflare.com dion.ns.cloudflare.com dion.ns.cloudflare.com dion.ns.cloudflare.com dion.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
mia.ns.cloudflare.com	108.162.192.200 172.64.32.200 173.245.58.200 2606:4700:50::adf5:3ac8 2803:f800:50::6ca2:c0c8 2a06:98c1:50::ac40:20c8	mia.ns.cloudflare.com mia.ns.cloudflare.com mia.ns.cloudflare.com mia.ns.cloudflare.com mia.ns.cloudflare.com mia.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records#

1 records 169ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
100.100.155.31	300s	—	—	—	—	—	—

📧 MX Records#

1 records 196ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	100.100.155.31
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 426ms

TXT Record
v=spf1 include:spf.simply.com -all

✉️ SPF#

Policy	Record (tcbv.dk)
-all (hard fail)	v=spf1 include:spf.simply.com -all

📨 DMARC#

Policy	Record (_dmarc.tcbv.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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 06:01:56

www	100.100.155.31 (address records, no CNAME)
www vs bare domain	Same network tcbv.dk: 100.100.155.31 www.tcbv.dk: 100.100.155.31
Wildcard	Yes: any name under the zone resolves

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.tcbv.dk	ZWGAlahW149ckMv-QA8TWG0rV9TzTBGHocQZc_WaHV8
TXT	_acme-challenge.tcbv.dk	t1O-nTwmmu6czmWGRb1scZmGyOb1F0but8y9-WDiBfE

🔗 TLSA / DANE#

2 records 59ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC#

256ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2414963595
Primary NS (MNAME)	dion.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-17 06:13:51

Field	Value
Registrar	Simply.com A/S
Registered	2021-10-14
Expires	2027-10-13 (357d)

🔗 Same registrant#

1 domain

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
24418553.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

167ms

169ms

196ms

AAAA

178ms

TXT

426ms

CAA

177ms

HTTPS

172ms

TLSA

59ms

SOA

0ms

MTA-STS

173ms

DNSSEC

256ms

SRV

280ms

Total

1063ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 13:54:11	9423ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-21 17:52:59	644ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-17 16:48:59 shown	1063ms	2 NS 1 A 1 MX	🔓 Insecure
2026-09-04 14:09:40	574ms	2 NS 1 A 1 MX	🔓 Insecure
2026-08-26 22:26:35	626ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-20 04:51:51	1442ms	2 NS 1 A 1 MX	🔓 Insecure
2026-07-03 21:02:13	16666ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-27 12:52:23	1797ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-25 07:03:46	934ms	2 NS 1 A 1 MX	🔓 Insecure
2026-06-23 09:21:33	1124ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 17:10:09	2598ms	2 NS 1 A 1 MX	🔓 Insecure