knowhowgroup.dk DNS records

🖥️ Nameservers2 records 34ms

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 Records2 records 33ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
3.33.152.50	3600s	a393efcbee787c12c.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	3.33.128.0/17	🇺🇸 United States	—
52.223.13.110	3600s	a393efcbee787c12c.awsglobalaccelerator.com	AS16509	Amazon.com, Inc.	52.223.0.0/17	🇺🇸 United States	—

📧 MX Records4 records 60ms

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 Records1 records 180ms

TXT Record
v=spf1 include:_custspf.one.com ~all

✉️ SPF

Policy	Record (knowhowgroup.dk)
~all (soft fail)	v=spf1 include:_custspf.one.com ~all

📨 DMARC

Policy	Record (_dmarc.knowhowgroup.dk)
p=reject	v=DMARC1; p=reject

📬 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 148ms

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…

🔐 DNSSEC66ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082401
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

34ms

A

33ms

MX

60ms

AAAA

42ms

TXT

180ms

CAA

57ms

HTTPS

43ms

TLSA

148ms

SOA

0ms

MTA-STS

62ms

DNSSEC

66ms

SRV

67ms

Total

901ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 04:06:52	901ms	2 NS 2 A 4 MX	🔒 Secure	View
2026-08-26 13:26:29	617ms	2 NS 2 A 4 MX	🔒 Secure	View
2026-07-24 13:27:50	968ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-07-02 17:51:38	2694ms	2 NS 2 A 4 MX	🔓 Insecure	View
2026-06-23 19:14:24	1919ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 13:49:19	1382ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 15:36:47	1162ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-21 06:36:27	371ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 20:46:51	563ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 14:18:22	347ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 06:46:06	695ms	0 NS 0 A 0 MX	❓ Unknown	View