creb.dk DNS records

🖥️ Nameservers2 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
algin.ns.cloudflare.com	—	—	—
ryleigh.ns.cloudflare.com	—	—	—

🌍 A Records2 records 50ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.18.2.157	—	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—
104.18.3.157	—	—	AS13335	Cloudflare, Inc.	104.16.0.0/14	—	—

📧 MX Records2 records 47ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	eu-esec-01.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation
10	—	eu-esec-02.heimdalsecurity.com	20.50.183.144 20.50.183.146	eu-esec-01.heimdalsecurity.com eu-esec-01.heimdalsecurity.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation

🔷 AAAA Records (IPv6)2 records 47ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700::6812:29d	—	—	AS13335	Cloudflare, Inc.	2606:4700::/41	—	—
2606:4700::6812:39d	—	—	AS13335	Cloudflare, Inc.	2606:4700::/41	—	—

🔐 HTTPS Records1 records 50ms

Priority	Target	SvcParams
1 service	.	alpn="h2" ipv4hint=104.18.2.157,104.18.3.157 ipv6hint=2606:4700::6812:29d,2606:4700::6812:39d

📝 TXT Records2 records 125ms

TXT Record
MS=ms33172067
v=spf1 include:_spf4890.spfprotect.com -all

✉️ SPF

Policy	Record (creb.dk)
-all (hard fail)	v=spf1 include:_spf4890.spfprotect.com -all

📨 DMARC

Policy	Record (_dmarc.creb.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:611e7677625a7@dmarc.centerasecurity.com;

📬 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 / DANE2 records 62ms

Service / Owner	Type	Cert association
SMTP _25._tcp.eu-esec-01.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…
SMTP _25._tcp.eu-esec-02.heimdalsecurity.com	DANE-EE · SPKI · SHA-256	2E8933DD6DB99304A5A9D5C4ECDE7B8E…

🔐 DNSSEC139ms

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

🏷️ SOA41ms

Field	Value
Serial	2405584812
Primary NS (MNAME)	algin.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

44ms

A

50ms

MX

47ms

AAAA

47ms

TXT

125ms

CAA

61ms

HTTPS

50ms

TLSA

62ms

SOA

41ms

MTA-STS

88ms

DNSSEC

139ms

SRV

0ms

Total

742ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 02:06:39	578ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-07 17:48:02	1191ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-08-03 18:24:54	8692ms	2 NS 2 A 0 MX	🔒 Secure	View
2026-07-16 14:40:03	1641ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-07-12 07:06:10	9449ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-24 12:09:50	943ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-22 18:33:43	991ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-22 06:58:10	606ms	2 NS 2 A 2 MX	🔒 Secure	View
2026-06-16 22:56:12	742ms	2 NS 2 A 2 MX	🔒 Secure	View