knudsen-ing.dk

📜 Historical scan 2026-06-17 12:58:47 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

knudsen-ing.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 19 February 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by eu-esec-01.heimdalsecurity.com, eu-esec-02.heimdalsecurity.com. 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 116ms

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#

🌍

No A records found

📧 MX Records#

2 records 131ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	eu-esec-01.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
20	—	eu-esec-02.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

3 records 381ms

TXT Record
_dmarc.knudsen-ing.dk. IN TXT "v=DMARC1;p=none;"
key1._domainkey.knudsen-ing.dk. IN TXT ("v=DKIM1; k=rsa; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvgt4yHoOndnJd27W0fP5" "ei43B7i+xZyuw9xbce/MGQ9qPBic7HhWfhCiQGnsc2hUB5P7zBx2D15KSsFwsWGR" "Iovdy+JKdexQwJJfFInvf+NUffiynvaohdsvCCiz62asGCnp72pFrbi7YuooOdyP" "9hgQtxPESXixAO8pPsgfirx/Q153L1Y1yUe/gsD4LL+kTUKiz+YuKu50Q0s8X+wM" "XCCvIrhodPqtQ6d0y/8ipNwIUaeUqYCTjCUQpgWyAtlvuwnym5fDW5IbAuDh5FO/" "8e2YYro4FZQU+SwgmJef5F7re3FZGD3z3VDzsCRkelZgf3ZrdBtZYORW5nXW5o0R" "YQIDAQAB" )
v=spf1 ip4:2.109.110.194 include:eu-esec-01.heimdalsecurity.com include:eu-esec-outbound.heimdalsecurity.com -all

✉️ SPF#

Policy	Record (knudsen-ing.dk)
-all (hard fail)	v=spf1 ip4:2.109.110.194 include:eu-esec-01.heimdalsecurity.com include:eu-esec-outbound.heimdalsecurity.com -all

📨 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 2026-10-12 16:34:12

www	185.21.41.130 (AS48854) (address records, no CNAME)
www vs bare domain	Same network knudsen-ing.dk: 185.21.41.130 (AS48854) www.knudsen-ing.dk: 185.21.41.130 (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

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

No problems found

🔗 TLSA / DANE#

2 records 206ms

Service / Owner	Type	Cert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…

🔐 DNSSEC#

295ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA#

103ms

Field	Value
Serial	2026050800
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 07:54:28

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2021-02-19
Expires	2027-02-28 (132d)

📋 WHOIS#

⏱️ Lookup Timing#

116ms

120ms

131ms

AAAA

115ms

TXT

381ms

CAA

110ms

HTTPS

113ms

TLSA

206ms

SOA

103ms

MTA-STS

77ms

DNSSEC

295ms

SRV

0ms

Total

2092ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-12 16:34:12	774ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-03 07:44:23	985ms	3 NS 1 A 2 MX	🔒 Secure
2026-10-01 07:35:21	601ms	3 NS 1 A 2 MX	🔒 Secure
2026-08-28 16:20:59	602ms	3 NS 1 A 2 MX	🔒 Secure
2026-06-27 03:34:19	743ms	3 NS 0 A 2 MX	🔒 Secure
2026-06-17 12:58:47 shown	2092ms	3 NS 0 A 2 MX	🔒 Secure