yellowsafety.dk DNS records

🖥️ Nameservers2 records 47ms

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 525ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
198.202.211.1	3599s	—	AS209242	Cloudflare London, LLC	198.202.211.0/24	🇺🇸 United States	—

📧 MX Records4 records 49ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	10800s	mx1.pub.mailpod11-cph3.one.com	104.37.34.230	mx1.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx2.pub.mailpod11-cph3.one.com	104.37.34.231	mx2.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx3.pub.mailpod11-cph3.one.com	104.37.34.232	mx3.pub.mailpod11-cph3.one.com	AS51468 One.com A/S
10	10800s	mx4.pub.mailpod11-cph3.one.com	104.37.34.233	mx4.pub.mailpod11-cph3.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 189ms

TXT Record
google-site-verification=7pEeIhnhQIHTLaQhOTDUYX75JOA9PC1BBrlL8Y0vztg
v=spf1 include:_custspf.one.com ~all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.yellowsafety.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:jdl@ysafety.dk; ruf=mailto:jdl@ysafety.dk

📬 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 1854ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx1.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx2.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx3.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…
SMTP _25._tcp.mx4.pub.mailpod11-cph3.one.com	DANE-EE · SPKI · SHA-256	068A81EDC98C58D5D494EDF2924D5F50…

🔐 DNSSEC112ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082601
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

47ms

A

525ms

MX

49ms

AAAA

49ms

TXT

189ms

CAA

45ms

HTTPS

40ms

TLSA

1854ms

SOA

0ms

MTA-STS

104ms

DNSSEC

112ms

SRV

73ms

Total

2786ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 18:20:36	2786ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-27 09:54:24	1651ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-26 09:53:00	1420ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-21 22:24:33	7751ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-11 11:29:57	2660ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-17 11:59:02	984ms	2 NS 1 A 4 MX	🔒 Secure	View