matematikivanskeligheder.dk DNS records

🖥️ Nameservers2 records 35ms

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 Records1 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
46.30.213.157	3600s	webcluster1.webpod14-cph3.one.com	AS51468	One.com A/S	46.30.208.0/21	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 23ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod14-cph3.one.com	185.10.9.212	mx1.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod14-cph3.one.com	185.10.9.213	mx2.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod14-cph3.one.com	185.10.9.214	mx3.pub.mailpod14-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod14-cph3.one.com	185.10.9.215	mx4.pub.mailpod14-cph3.one.com	AS51468 One.com A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	46.30.213.157
🔶 Autoconfig	46.30.213.157

🔷 AAAA Records (IPv6)1 records 23ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:10c:ed:783d:c174:98af	3600s	—	AS51468	One.com A/S	2a02:2350:0:0:0:0:0:0/32	🇩🇰 Denmark	Copenhagen

🔐 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

Policy	Record (_dmarc.matematikivanskeligheder.dk)
p=none (monitor only)	v=DMARC1; p=none;

📬 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

🔗 TLSA / DANE4 records 55ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx2.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx3.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…
SMTP _25._tcp.mx4.pub.mailpod14-cph3.one.com	DANE-EE · SPKI · SHA-256	A4B9A2A35B513EFAC91F5A3C11DD0C58…

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2026083101
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

35ms

A

32ms

MX

23ms

AAAA

23ms

TXT

130ms

CAA

23ms

HTTPS

23ms

TLSA

55ms

SOA

0ms

MTA-STS

38ms

DNSSEC

99ms

SRV

51ms

Total

580ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 13:14:46	580ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-29 18:12:36	1708ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-27 23:09:31	741ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 13:22:17	887ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 04:38:57	931ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-23 04:26:19	1009ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-21 03:59:39	1025ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-20 03:20:42	5705ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-19 00:42:40	5648ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-17 14:49:23	1394ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-16 12:15:28	1190ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-15 09:41:14	1256ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-13 16:45:57	1003ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-12 06:31:53	1422ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-10 21:04:55	3647ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-09 09:11:21	898ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-06 20:54:32	858ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-01 04:35:16	777ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 23:56:56	3634ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-23 22:09:23	1085ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 22:52:19	1173ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 05:07:33	1453ms	2 NS 1 A 4 MX	🔒 Secure	View