fsr-itu.dk DNS records

🖥️ Nameservers5 records 37ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
165.160.13.20	14400s	—	AS19574	Corporation Service Company	165.160.12.0/22	🇺🇸 United States	—
165.160.15.20	14400s	—	AS19574	Corporation Service Company	165.160.12.0/22	🇺🇸 United States	—

📧 MX Records1 records 34ms

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	165.160.13.20
🔶 Autoconfig	165.160.15.20

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 241ms

TXT Record
v=spf1 mx -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.fsr-itu.dk)
p=reject	v=DMARC1; p=reject; sp=reject;

📬 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)

🔐 DNSSEC110ms

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

37ms

A

37ms

MX

34ms

AAAA

37ms

TXT

241ms

CAA

35ms

HTTPS

39ms

TLSA

80ms

SOA

0ms

MTA-STS

63ms

DNSSEC

110ms

SRV

75ms

Total

650ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 03:42:05	650ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-25 15:24:54	783ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-20 10:01:33	1396ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-13 20:31:05	5924ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-07 18:39:37	1059ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-08-05 17:31:04	1430ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-23 11:12:11	1295ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-17 09:06:57	9838ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-09 02:21:02	1653ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-07-03 10:16:04	2155ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-25 15:43:24	1884ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-25 11:40:00	966ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-18 12:59:31	967ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-17 10:29:34	765ms	5 NS 2 A 1 MX	🔒 Secure	View
2026-06-17 10:24:35	634ms	5 NS 2 A 1 MX	🔒 Secure	View