learnoff.dk DNS records

🖥️ Nameservers2 records 270ms

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 170ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
51.158.241.231	3600s	231-241-158-51.instances.scw.cloud	AS12876	Scaleway SAS	51.158.0.0/15	🇳🇱 The Netherlands	Haarlem

📧 MX Records4 records 165ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.mailpod16-cph3.g1i.one.com	5.249.232.33	mx1.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx2.mailpod16-cph3.g1i.one.com	5.249.232.34	mx2.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx3.mailpod16-cph3.g1i.one.com	5.249.232.35	mx3.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S
10	10800s	mx4.mailpod16-cph3.g1i.one.com	5.249.232.36	mx4.mailpod16-cph3.g1i.one.com	AS51468 One.com A/S

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records2 records 485ms

TXT Record
google-site-verification=abDhSf7WMmsFACDP_5pCwJ9H5U2l_ic89Yqi4-GN9xQ
v=spf1 a mx include:_custspf.one.com ~all

✉️ SPF

Policy	Record (learnoff.dk)
~all (soft fail)	v=spf1 a mx include:_custspf.one.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

🔗 TLSA / DANE4 records 659ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx2.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx3.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…
SMTP _25._tcp.mx4.mailpod16-cph3.g1i.one.com	DANE-EE · SPKI · SHA-256	24689A1B29BE70163B6DCF262497B6EC…

🔐 DNSSEC412ms

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

🏷️ SOA0ms

Field	Value
Serial	2026081001
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

270ms

A

170ms

MX

165ms

AAAA

200ms

TXT

485ms

CAA

265ms

HTTPS

260ms

TLSA

659ms

SOA

0ms

MTA-STS

313ms

DNSSEC

412ms

SRV

282ms

Total

4954ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-25 12:27:42	761ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-14 11:23:45	1006ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-10 17:56:56	4954ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-24 22:34:14	4901ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-20 13:52:48	859ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-13 11:24:20	8914ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-08 13:23:38	9086ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-20 05:14:01	2606ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 11:48:04	795ms	2 NS 1 A 4 MX	🔒 Secure	View