tkbf.dk

📜 Historical scan 2026-06-17 22:24:05 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tkbf.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx1.spacemail.com, mx2.spacemail.com. 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#

3 records 113ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records#

1 records 105ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
76.76.21.21	—	—	AS16509	Amazon.com, Inc.	76.76.21.0/24	🇺🇸 United States	Walnut

📧 MX Records#

2 records 102ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	mx1.spacemail.com	162.255.118.30	mx1.spacemail.com	AS22612 Namecheap, Inc.
0	—	mx2.spacemail.com	162.255.118.31	mx2.spacemail.com	AS22612 Namecheap, Inc.

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	91.98.144.109
🔶 Autoconfig	91.98.144.109

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records#

1 records 319ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	0	0	443	autoconfig.spacemail.com

📝 TXT Records#

3 records 261ms

TXT Record
7d79d95a-577c-4b8c-80a0-4da51f1b9296
brevo-code:fd4a37db56f2e5abbce34f1e5acd509b
v=spf1 include:spf.spacemail.com ~all

✉️ SPF#

Policy	Record (tkbf.dk)
~all (soft fail)	v=spf1 include:spf.spacemail.com ~all

📨 DMARC#

Policy	Record (_dmarc.tkbf.dk)
p=none (monitor only)	v=DMARC1; p=none; rua=mailto:rua@dmarc.brevo.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 01:23:59

www	91.98.144.109 (AS24940) (address records, no CNAME)
www vs bare domain	Different networks tkbf.dk: 76.76.21.21 (AS16509) www.tkbf.dk: 91.98.144.109 (AS24940) (all like this)
Wildcard	Yes: any name under the zone resolves
Denial of existence	NSEC zone can be walked (all names enumerable)
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 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#

338ms

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

🏷️ SOA#

98ms

Field	Value
Serial	2026031400
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

113ms

105ms

102ms

AAAA

102ms

TXT

261ms

CAA

99ms

HTTPS

101ms

TLSA

112ms

SOA

98ms

MTA-STS

134ms

DNSSEC

338ms

SRV

319ms

Total

883ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 01:23:59	902ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-02 11:02:33	2006ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-23 18:09:21	888ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-17 22:24:05 shown	883ms	3 NS 1 A 2 MX	🔒 Secure