matematikhåndbogen.dk xn--matematikhndbogen-irb.dk

📜 Historical scan 2026-06-26 07:09:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

matematikhåndbogen.dk is a .dk domain served by 3 nameservers (ns1.simply.com, ns2.simply.com, ns3.simply.com). It was registered on 27 August 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. 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 352ms

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#

📧

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 2026-10-08 05:32:54

www	NXDOMAIN
www vs bare domain	Neither resolves matematikhåndbogen.dk: no address www.matematikhåndbogen.dk: no address
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#

521ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	ncache nxdomain overridden by dig AD

🏷️ SOA#

354ms

Field	Value
Serial	2024082703
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 2026-10-25 00:21:40

Field	Value
Registrar	Simply.com A/S
Registered	2024-08-27
Expires	2027-08-26 (302d)

🔗 Same registrant#

3 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).

Domain	Registrar
madihjemmet.dk	nordicway ApS
matematikcoaching.dk	Simply.com A/S
umas.dk	Punktum dk A/S (direct)

📋 WHOIS#

⏱️ Lookup Timing#

352ms

171ms

290ms

AAAA

352ms

TXT

553ms

CAA

316ms

HTTPS

236ms

TLSA

63ms

SOA

354ms

MTA-STS

390ms

DNSSEC

521ms

SRV

339ms

Total

2336ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-02 23:33:45	1074ms	3 NS 0 A 0 MX	🔒 Secure
2026-09-29 22:50:27	400ms	3 NS 0 A 0 MX	🔒 Secure
2026-09-23 19:47:56	348ms	3 NS 0 A 0 MX	🔒 Secure
2026-08-26 15:27:30	404ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-26 07:09:26 shown	2336ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-23 23:16:46	364ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-20 04:37:46	493ms	3 NS 0 A 0 MX	🔒 Secure
2026-06-18 04:16:14	497ms	3 NS 0 A 0 MX	🔒 Secure