cfcs-sitcen.dk DNS records

🖥️ Nameservers5 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.brandshelter.com	193.227.117.9 2a04:2b00:14cc::9	ns1.brandshelter.com —	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns2.brandshelter.de	194.50.187.11 2a04:2b00:14dd::11	ns2.brandshelter.de ns11.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH
ns3.brandshelter.info	194.0.182.12 2a04:2b00:14ee::12	ns3.brandshelter.info ns12.k.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns4.brandshelter.net	193.227.117.10 2a04:2b00:14cc::10	ns4.brandshelter.net ns10.i.centralnic-dns.com	AS1921 ipcom GmbH AS1921 ipcom GmbH
ns5.brandshelter.us	194.50.187.14 2a04:2b00:14dd::14	ns5.brandshelter.us ns14.j.centralnic-dns.com	AS207021 ipcom GmbH AS207021 ipcom GmbH

🌍 A Records2 records 49ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.22.145.121	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	5.22.145.0/24	🇩🇪 Germany	—
5.22.145.16	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	5.22.145.0/24	🇩🇪 Germany	—

📧 MX Records1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	14400s	custmx.cscdns.net	198.58.121.58	198-58-121-58.ip.linodeusercontent.com	AS63949 Akamai Connected Cloud

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	5.22.145.121
🔶 Autoconfig	5.22.145.16

🔷 AAAA Records (IPv6)2 records 54ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a00:18e0:5:2:7577:4e4d:413b:f507	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	2a00:18e0:5:0:0:0:0:0/48	🇩🇪 Germany	—
2a00:18e0:5:3:dfe2:c743:85aa:61bc	600s	relay.mail-forwarder.io	AS16509	Amazon.com, Inc.	2a00:18e0:5:0:0:0:0:0/48	🇩🇪 Germany	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 294ms

TXT Record
v=spf1 mx -all

✉️ SPF

Policy	Record (cfcs-sitcen.dk)
-all (hard fail)	v=spf1 mx -all

📨 DMARC

Policy	Record (_dmarc.cfcs-sitcen.dk)
p=reject	v=DMARC1; p=reject; sp=reject; rua=mailto:dmarc-rua@fe-ddis.dk; ruf=mailto:dmarc-ruf@fe-ddis.dk; fo=1; pct=100

📬 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 / DANE

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

🔐 DNSSEC99ms

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

🏷️ SOA0ms

Field	Value
Serial	2025035771
Primary NS (MNAME)	ns1.brandshelter.com
Responsible (RNAME)	tech@brandshelter.com
Refresh	10800s
Retry	3600s
Expire	604800s
Minimum (neg-cache TTL)	300s

📋 RegistrationWHOIS fetched 2026-07-31 09:42:58

Field	Value
Registrar	Key-Systems GmbH
Registered	2018-09-28
Expires	2026-09-30 (28d)

📋 WHOIS

⏱️ Lookup Timing

NS

61ms

A

49ms

MX

54ms

AAAA

54ms

TXT

294ms

CAA

47ms

HTTPS

55ms

TLSA

154ms

SOA

0ms

MTA-STS

81ms

DNSSEC

99ms

SRV

99ms

Total

834ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 11:34:37	834ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-20 07:59:31	9500ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-14 20:15:11	5116ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-06 06:21:21	1449ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-31 09:36:07	9089ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-24 01:27:11	1066ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-18 05:10:29	1287ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-10 18:25:23	2698ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-03 18:18:00	1049ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-26 05:40:56	1131ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-24 06:19:20	989ms	5 NS 2 A 1 MX	⚠️ Bogus	View
2026-06-20 15:13:05	1227ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 20:11:05	792ms	5 NS 2 A 1 MX	🔒 Secure	View