matematikforlaget.dk

Records from scan: 2026-10-26 23:49:14 · 732ms total

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

matematikforlaget.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 9 January 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.51.78.84 is hosted by Powernet Aps (AS205984) in Denmark. Mail is handled by aspmx.l.google.com, alt1.aspmx.l.google.com and 3 more. The zone is DNSSEC-signed and validates, has no DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 38ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 45ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.51.78.84	43200s	—	AS205984	Powernet Aps	185.51.78.0/23	🇩🇰 Denmark	Nordhavn

📧 MX Records#

5 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	43200s	aspmx.l.google.com	2a00:1450:4010:c03::1b 2a00:1450:4010:c03::1b 64.233.165.26	lr-in-f27.1e100.net lr-in-x1b.1e100.net lg-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
20	43200s	alt1.aspmx.l.google.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
20	43200s	alt2.aspmx.l.google.com	173.194.41.26 173.194.41.26 2404:6800:4001:c01::1a	yukulwh-in-f26.1e100.net mad01s14-in-f26.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx2.googlemail.com	192.178.158.27 2404:6800:4013:813::1a	lcdels-in-f27.1e100.net lcdels-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
30	43200s	aspmx3.googlemail.com	173.194.41.27 173.194.41.27 2404:6800:4001:c01::1a	yukulwh-in-f27.1e100.net mad01s14-in-f27.1e100.net yukulwh-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	matematikforlaget.dk → 185.51.78.84
🔶 Autoconfig	matematikforlaget.dk → 185.51.78.84

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 162ms

TXT Record
v=spf1 mx a include:web.shared.mysmtp.com ~all

✉️ SPF#

Policy	Record (matematikforlaget.dk)
~all (soft fail)	v=spf1 mx a include:web.shared.mysmtp.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#

checked 2026-10-26 23:49:14

www CNAME	matematikforlaget.dk (all on matematikforlaget.dk) → 185.51.78.84 (AS205984)
www vs bare domain	Same network matematikforlaget.dk: 185.51.78.84 (AS205984) www.matematikforlaget.dk: 185.51.78.84 (AS205984)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: ~all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.matematikforlaget.dk	matematikforlaget.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

76ms

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

🏷️ SOA#

32ms

Field	Value
Serial	2026102501
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-21 09:34:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-01-09
Expires	2028-10-30 (733d)

🔗 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#

38ms

45ms

33ms

AAAA

35ms

TXT

162ms

CAA

64ms

HTTPS

74ms

TLSA

118ms

SOA

32ms

MTA-STS

68ms

DNSSEC

76ms

SRV

65ms

Total

732ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-26 23:49:14 shown	732ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-21 08:52:01	609ms	2 NS 1 A 5 MX	🔒 Secure
2026-10-08 06:24:20	773ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-27 03:51:50	2636ms	2 NS 1 A 5 MX	🔒 Secure
2026-09-24 04:52:00	1072ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-21 17:50:19	719ms	2 NS 1 A 5 MX	🔒 Secure
2026-06-18 03:16:09	903ms	2 NS 1 A 5 MX	🔒 Secure