centic.dk DNS records

🖥️ Nameservers4 records 106ms

Nameserver	IP addresses	PTR	ASN / ISP
ns-1043.awsdns-02.org	205.251.196.19 2600:9000:5304:1300::1	ns-1043.awsdns-02.org ns-1043.awsdns-02.org	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-1924.awsdns-48.co.uk	205.251.199.132 2600:9000:5307:8400::1	ns-1924.awsdns-48.co.uk ns-1924.awsdns-48.co.uk	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-395.awsdns-49.com	205.251.193.139 2600:9000:5301:8b00::1	ns-395.awsdns-49.com ns-395.awsdns-49.com	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.
ns-563.awsdns-06.net	205.251.194.51 2600:9000:5302:3300::1	ns-563.awsdns-06.net ns-563.awsdns-06.net	AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc.

🌍 A Records1 records 105ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.231.103.129	300s	linux111.unoeuro.com	AS48854	team.blue Denmark A/S	94.231.96.0/20	🇩🇰 Denmark	—

📧 MX Records8 records 117ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	7200s	aspmx.l.google.com	173.194.73.27 2a00:1450:4010:c0b::1a 2a00:1450:4010:c0b::1a	lq-in-f27.1e100.net lo-in-f26.1e100.net lo-in-x1a.1e100.net	AS15169 Google LLC AS15169 Google LLC AS15169 Google LLC
5	7200s	alt1.aspmx.l.google.com	172.253.158.26 2404:6800:4003:c26::1a	so-in-f26.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
5	7200s	alt2.aspmx.l.google.com	108.177.125.26 2404:6800:4008:c01::1a	tp-in-f26.1e100.net tp-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	7200s	aspmx2.googlemail.com	172.253.158.27 2404:6800:4003:c26::1a	so-in-f27.1e100.net so-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	7200s	aspmx3.googlemail.com	108.177.125.27 2404:6800:4008:c01::1b	tp-in-f27.1e100.net tp-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	7200s	aspmx4.googlemail.com	192.178.230.26 2404:6800:400b:c01b::1a	yunrtab-in-f26.1e100.net yunrtab-in-f26.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	7200s	aspmx5.googlemail.com	172.253.152.27 2a00:1450:4010:c22::1b	yulpptr-in-f27.1e100.net yulpptr-in-f27.1e100.net	AS15169 Google LLC AS15169 Google LLC
10	7200s	mx.simply.com	94.231.106.20	mx.simply.com	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	aws.centic.dk → 79.125.23.238
🔶 Autoconfig	aws.centic.dk → 79.125.23.238

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records3 records 358ms

TXT Record
apple-domain-verification=xHsWfR2JCqsuGRq8
MS=ms23288970
v=spf1 a:centic.dk ip4:54.228.203.105 ip4:212.97.133.199 include:_spf.google.com include:sendgrid.net include:servers.mcsv.net include:mail.zendesk.com ~all

✉️ SPF

Policy	Record (centic.dk)
~all (soft fail)	v=spf1 a:centic.dk ip4:54.228.203.105 ip4:212.97.133.199 include:_spf.google.com include:sendgrid.net include:servers.mcsv.net include:mail.zendesk.com ~all

📨 DMARC

Policy	Record (_dmarc.centic.dk)
p=none (monitor only)	v=DMARC1; p=none; sp=none; pct=100;rua=mailto:infrastructure@centic.dk,mailto:pg+dmarc_report@centic.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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.centic.dk	aws.centic.dk

🔗 TLSA / DANE2 records 175ms

Service / Owner	Type	Cert association
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	97A3BA009F39C761BFFB6574340E8138…
SMTP _25._tcp.mx.simply.com	DANE-EE · SPKI · SHA-256	A9D603AF4D7ED6B9246B4B68500CD6F2…

🔐 DNSSEC218ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA106ms

Field	Value
Serial	2017011611
Primary NS (MNAME)	ns-1924.awsdns-48.co.uk
Responsible (RNAME)	awsdns-hostmaster@amazon.com
Refresh	7200s
Retry	900s
Expire	1209600s
Minimum (neg-cache TTL)	86400s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

106ms

A

105ms

MX

117ms

AAAA

107ms

TXT

358ms

CAA

89ms

HTTPS

102ms

TLSA

175ms

SOA

106ms

MTA-STS

70ms

DNSSEC

218ms

SRV

183ms

Total

3414ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-19 15:24:27	3414ms	4 NS 1 A 8 MX	🔓 Insecure	View
2026-06-16 20:05:32	2774ms	4 NS 1 A 8 MX	🔓 Insecure	View