centrumservice.dk DNS records

🖥️ Nameservers3 records 41ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 44ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
162.159.135.42	3600s	—	AS13335	Cloudflare, Inc.	162.159.128.0/19	🇺🇸 United States	—

📧 MX Records1 records 36ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	3600s	smtp.google.com	142.251.1.26 2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1a 2a00:1450:4010:c05::1b 2a00:1450:4010:c05::1b 2a00:1450:4010:c06::1a 2a00:1450:4010:c06::1a 2a00:1450:4010:c1e::1b 64.233.162.26 64.233.162.27 64.233.163.26 64.233.163.27	lb-in-f26.1e100.net li-in-f26.1e100.net li-in-x1a.1e100.net li-in-f27.1e100.net li-in-x1b.1e100.net lj-in-x1a.1e100.net lj-in-f26.1e100.net lb-in-f27.1e100.net li-in-f26.1e100.net li-in-f27.1e100.net lj-in-f26.1e100.net lj-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	centrumservice.dk → 162.159.135.42
🔶 Autoconfig	maildiscover.simply.com → 94.231.108.222

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 58ms

Service	Priority	Weight	Port	Target
_autodiscover._tcp	10	10	443	maildiscover.simply.com

📝 TXT Records2 records 188ms

TXT Record
google-site-verification=f7vlnyQZVMD-bXbqmEMzmyfbHqUw7ZDudiXWKRYn8Zs
v=spf1 include:spf.simply.com include:_spf.google.com include:relay.kinstamailservice.com include:mailgun.org ~all

✉️ SPF

Policy	Record (centrumservice.dk)
~all (soft fail)	v=spf1 include:spf.simply.com include:_spf.google.com include:relay.kinstamailservice.com include:mailgun.org ~all

📨 DMARC

Policy	Record (_dmarc.centrumservice.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:dmarc@robot.simply.com; ruf=mailto:dmarc@robot.simply.com;

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.centrumservice.dk	centrumservice.dk.kinstavalidation.app

🔗 TLSA / DANE

✗ No TLSA records — DANE not configured for HTTPS (_443) or MX (_25)

🔐 DNSSEC69ms

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

🏷️ SOA0ms

Field	Value
Serial	2026031105
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

41ms

A

44ms

MX

36ms

AAAA

39ms

TXT

188ms

CAA

37ms

HTTPS

50ms

TLSA

78ms

SOA

0ms

MTA-STS

67ms

DNSSEC

69ms

SRV

58ms

Total

660ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 00:10:13	660ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-25 14:38:30	3219ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 20:08:39	923ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-24 08:19:01	867ms	3 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-24 05:52:08	3304ms	3 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 04:18:20	909ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-16 20:06:26	549ms	3 NS 1 A 1 MX	🔒 Secure	View