cfcsncsc.dk DNS records

🖥️ Nameservers5 records 62ms

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 48ms

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 52ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	14400s	custmx.cscdns.net	198.58.121.58	—	AS63949 Akamai Connected Cloud

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	5.22.145.121
🔶 Autoconfig	5.22.145.16

🔷 AAAA Records (IPv6)2 records 59ms

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 283ms

TXT Record
v=spf1 mx -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.cfcsncsc.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)

🔐 DNSSEC90ms

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

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

62ms

A

48ms

MX

52ms

AAAA

59ms

TXT

283ms

CAA

54ms

HTTPS

69ms

TLSA

145ms

SOA

0ms

MTA-STS

74ms

DNSSEC

90ms

SRV

99ms

Total

798ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 18:42:50	798ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-27 09:54:27	2247ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-20 03:03:00	9592ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-13 20:40:58	1225ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-06 15:22:09	8989ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-30 02:56:32	2360ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-23 18:29:20	9944ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-16 13:37:49	25130ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-10 04:10:57	32962ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-03 13:17:44	1149ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-29 10:36:56	1459ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-24 06:14:58	909ms	5 NS 2 A 1 MX	⚠️ Bogus	View
2026-06-22 12:42:41	1470ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-19 05:39:32	1305ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 20:10:27	713ms	5 NS 2 A 1 MX	🔒 Secure	View