centerasecurity.dk DNS records

🖥️ Nameservers2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
curt.ns.cloudflare.com	108.162.193.94 172.64.33.94 173.245.59.94 2606:4700:58::adf5:3b5e 2803:f800:50::6ca2:c15e 2a06:98c1:50::ac40:215e	curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com curt.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
hera.ns.cloudflare.com	108.162.192.162 172.64.32.162 173.245.58.162 2606:4700:50::adf5:3aa2 2803:f800:50::6ca2:c0a2 2a06:98c1:50::ac40:20a2	hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com hera.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 34ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.85.246	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.212.250	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 33ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	centerasecurity-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::10 2a01:111:f403:ca04::d 2a01:111:f403:ca09::3 52.101.68.0 52.101.68.15 52.101.73.155 52.101.73.22	mail-db7pr03cu00401.inbound.protection.outlook.com mail-dbapr03cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db3pr0202cu00100.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.40

🔷 AAAA Records (IPv6)2 records 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3030::ac43:d4fa	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:55f6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 29ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.85.246,172.67.212.250 ech=AEX+DQBBMwAgACAgxhomKHehEW58NJqh4dTyKWEWuazzuXDGTTnRaCl5ZQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:d4fa,2606:4700:3036::6815:55f6

🔌 SRV Records1 records 64ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 145ms

TXT Record
MS=ms65998022
v=spf1 a:outbound.centerasecurity.dk include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (centerasecurity.dk)
-all (hard fail)	v=spf1 a:outbound.centerasecurity.dk include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.centerasecurity.dk)
p=reject	v=DMARC1; p=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)

🔐 DNSSEC104ms

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

🏷️ SOA0ms

Field	Value
Serial	2413239867
Primary NS (MNAME)	curt.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

30ms

A

34ms

MX

33ms

AAAA

39ms

TXT

145ms

CAA

37ms

HTTPS

29ms

TLSA

585ms

SOA

0ms

MTA-STS

51ms

DNSSEC

104ms

SRV

64ms

Total

1167ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 13:25:13	1167ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-26 13:04:26	10223ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-18 15:35:19	2576ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-14 06:12:25	4670ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-06 07:58:06	2304ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-01 05:43:57	1584ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-09 21:58:22	17231ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-21 05:18:47	1927ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-16 20:05:33	752ms	2 NS 2 A 1 MX	🔒 Secure	View