rebismart.dk DNS records

🖥️ Nameservers5 records 57ms

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 Records4 records 88ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
52.84.50.3	60s	server-52-84-50-3.osl50.r.cloudfront.net	AS16509	Amazon.com, Inc.	52.84.0.0/15	🇺🇸 United States	—
52.84.50.32	60s	server-52-84-50-32.osl50.r.cloudfront.net	AS16509	Amazon.com, Inc.	52.84.0.0/15	🇺🇸 United States	—
52.84.50.69	60s	server-52-84-50-69.osl50.r.cloudfront.net	AS16509	Amazon.com, Inc.	52.84.0.0/15	🇺🇸 United States	—
52.84.50.99	60s	server-52-84-50-99.osl50.r.cloudfront.net	AS16509	Amazon.com, Inc.	52.84.0.0/15	🇺🇸 United States	—

📧 MX Records1 records 76ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	600s	. Null MX — domain accepts no email (RFC 7505)

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	d12udl99gk4j9h.cloudfront.net → 3.174.18.62
🔶 Autoconfig	d12udl99gk4j9h.cloudfront.net → 3.174.18.62

🔷 AAAA Records (IPv6)8 records 54ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2600:9000:223f:0:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:223f:2000:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:223f:7a00:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:223f:ac00:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:223f:b000:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:223f:c600:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:223f:e00:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—
2600:9000:223f:fe00:12:6fb7:a140:93a1	600s	—	AS16509	Amazon.com, Inc.	2600:9000:0:0:0:0:0:0/34	🇺🇸 United States	—

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 244ms

TXT Record
v=spf1 -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.rebismart.dk)
p=reject	v=DMARC1;p=reject;sp=reject;pct=100;rua=mailto:dmarcrpt@merckgroup.com;ruf=mailto:dmarcrpt@merckgroup.com;ri=86400;aspf=s;adkim=s;fo=1

📬 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.rebismart.dk	d12udl99gk4j9h.cloudfront.net

🔗 TLSA / DANE

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

🔐 DNSSEC133ms

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

🏷️ SOA0ms

Field	Value
Serial	2026070802
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

57ms

A

88ms

MX

76ms

AAAA

54ms

TXT

244ms

CAA

57ms

HTTPS

73ms

TLSA

192ms

SOA

0ms

MTA-STS

132ms

DNSSEC

133ms

SRV

108ms

Total

1295ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 10:40:21	1295ms	5 NS 4 A 1 MX	🔓 Insecure	View
2026-07-09 06:22:27	1464ms	5 NS 4 A 1 MX	🔓 Insecure	View
2026-07-04 21:26:04	1662ms	5 NS 2 A 1 MX	🔓 Insecure	View
2026-06-23 00:10:23	1065ms	5 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 13:04:43	2921ms	5 NS 2 A 0 MX	🔓 Insecure	View