cs-byg.dk

📜 Historical scan 2026-06-17 01:31:11 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

cs-byg.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 14 August 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 94.231.103.100 is hosted by team.blue Denmark A/S (AS48854) in Denmark. 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 917ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	—	—	—
ns2.simply.com	—	—	—
ns3.simply.com	—	—	—

🌍 A Records#

1 records 425ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.100	—	dnsforward.simply.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 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 2026-10-11 05:47:06

www	94.231.103.100 (AS48854) (address records, no CNAME)
www vs bare domain	Same network cs-byg.dk: 94.231.103.100 (AS48854) www.cs-byg.dk: 94.231.103.100 (AS48854)
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#

10128ms

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

🏷️ SOA#

2440ms

Field	Value
Serial	2025081900
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 2026-10-03 19:58:28

Field	Value
Registrar	Simply.com A/S
Registered	2025-08-14
Expires	2027-08-13 (292d)

📋 WHOIS#

⏱️ Lookup Timing#

917ms

425ms

1999ms

AAAA

846ms

TXT

2861ms

CAA

1626ms

HTTPS

1198ms

TLSA

7545ms

SOA

2440ms

MTA-STS

2938ms

DNSSEC

10128ms

SRV

0ms

Total

49840ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 19:31:28	312ms	3 NS 1 A 0 MX	🔒 Secure
2026-09-30 19:15:15	448ms	3 NS 1 A 0 MX	🔒 Secure
2026-09-30 02:43:55	357ms	3 NS 1 A 0 MX	🔒 Secure
2026-08-17 16:36:18	16584ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-27 12:31:11	403ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-22 07:22:59	1199ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 01:31:11 shown	49840ms	3 NS 1 A 0 MX	🔒 Secure
2026-06-16 23:05:47	2379ms	3 NS 1 A 0 MX	🔒 Secure