tandemcykling.dk

📜 Historical scan 2026-06-17 14:25:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

tandemcykling.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 23 February 2006 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 23.21.157.88 is hosted by Amazon.com, Inc. (AS14618) in United States. 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#

3 records 35ms

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#

2 records 41ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
23.21.157.88	—	ec2-23-21-157-88.compute-1.amazonaws.com	AS14618	Amazon.com, Inc.	23.20.0.0/14	🇺🇸 United States	Ashburn
23.21.234.173	—	ec2-23-21-234-173.compute-1.amazonaws.com	AS14618	Amazon.com, Inc.	23.20.0.0/14	🇺🇸 United States	Ashburn

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

📝

No TXT records found

✉️ 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 2026-10-22 03:29:13

www CNAME	tandemcykling.dk (all on tandemcykling.dk) → 23.21.157.88 23.21.234.173 (AS14618)
www vs bare domain	Same network tandemcykling.dk: 23.21.157.88 23.21.234.173 (AS14618) www.tandemcykling.dk: 23.21.157.88 23.21.234.173 (AS14618)
Wildcard	No
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

🔗 TLSA / DANE#

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

🔐 DNSSEC#

124ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2023030606
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration#

WHOIS fetched 2026-10-19 20:49:36

Field	Value
Registrar	Simply.com A/S
Registered	2006-02-23
Expires	2027-02-28 (126d)

🔗 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#

35ms

41ms

40ms

AAAA

33ms

TXT

403ms

CAA

35ms

HTTPS

32ms

TLSA

95ms

SOA

32ms

MTA-STS

93ms

DNSSEC

124ms

SRV

0ms

Total

1230ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 03:29:13	426ms	3 NS 2 A 0 MX	🔒 Secure
2026-10-02 07:09:56	590ms	3 NS 2 A 0 MX	🔒 Secure
2026-10-01 07:04:56	572ms	3 NS 2 A 0 MX	🔒 Secure
2026-09-30 07:43:17	338ms	3 NS 2 A 0 MX	🔒 Secure
2026-08-28 06:32:30	584ms	3 NS 2 A 0 MX	🔒 Secure
2026-06-17 14:25:39 shown	1230ms	3 NS 2 A 0 MX	🔒 Secure