sylvester-co.dk DNS records

🖥️ Nameservers2 records 50ms

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
77.111.240.132	3600s	webcluster5.webpod11-cph3.one.com	AS51468	One.com A/S	77.111.240.0/22	🇩🇰 Denmark	Copenhagen

📧 MX Records4 records 57ms

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)1 records 34ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a02:2350:5:102:22:949d:6c5a:e69a	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 Records1 records 201ms

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

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.sylvester-co.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:no-reply@sylvester-co.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 75ms

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…

🔐 DNSSEC77ms

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

🏷️ SOA0ms

Field	Value
Serial	2026082002
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

50ms

A

32ms

MX

57ms

AAAA

34ms

TXT

201ms

CAA

46ms

HTTPS

34ms

TLSA

75ms

SOA

0ms

MTA-STS

76ms

DNSSEC

77ms

SRV

67ms

Total

905ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 00:18:49	905ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-27 07:33:50	834ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-22 15:49:29	4976ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-20 15:33:49	2218ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-08-12 22:26:10	9005ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-26 20:24:16	1098ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-16 17:28:01	1647ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-07-09 03:00:43	1127ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-29 20:31:04	796ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 19:32:25	2115ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 16:16:02	4137ms	2 NS 1 A 4 MX	🔒 Secure	View
2026-06-24 03:34:57	1172ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-18 06:01:33	716ms	2 NS 1 A 4 MX	🔒 Secure	View