cfcore.dk DNS records

🖥️ Nameservers2 records 30ms

Nameserver	IP addresses	PTR	ASN / ISP
jason.ns.cloudflare.com	108.162.193.179 172.64.33.179 173.245.59.179 2606:4700:58::adf5:3bb3 2803:f800:50::6ca2:c1b3 2a06:98c1:50::ac40:21b3	jason.ns.cloudflare.com jason.ns.cloudflare.com jason.ns.cloudflare.com jason.ns.cloudflare.com jason.ns.cloudflare.com jason.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
karsyn.ns.cloudflare.com	108.162.194.194 162.159.38.194 172.64.34.194 2606:4700:50::a29f:26c2 2803:f800:50::6ca2:c2c2 2a06:98c1:50::ac40:22c2	karsyn.ns.cloudflare.com karsyn.ns.cloudflare.com karsyn.ns.cloudflare.com karsyn.ns.cloudflare.com karsyn.ns.cloudflare.com karsyn.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records

🌍

No A records found

📧 MX Records1 records 30ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	cfcore-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::a 2a01:111:f403:ca04::b 2a01:111:f403:ca09::4 52.101.103.140 52.101.209.153 52.101.68.32 52.101.73.19	mail-db7pr03cu00401.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-dbbpr03cu00103.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-cpjpr04cu00101.inbound.protection.outlook.com mail-db3pr0202cu00200.inbound.protection.outlook.com mail-as8pr04cu00803.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 → 40.104.116.24

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records4 records 150ms

TXT Record
atlassian-domain-verification=QsDlTV5Cx5l/xiEF5hWFrzabwrHTGZaZLg70uDmK1PbQhtqKVTreYGS4xSwzbqV1
MS=ms83672803
q212c85ft36ljf3px8fyh1svrm3l1wd8
v=spf1 mx include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (cfcore.dk)
-all (hard fail)	v=spf1 mx include:spf.protection.outlook.com -all

📨 DMARC

✗ No DMARC record — mail spoofing not restricted

📬 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)

🔐 DNSSEC101ms

Check	Result
Validation Status	🔒 Secure
AD Flag (resolver validates)	✓ Set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2413343282
Primary NS (MNAME)	jason.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

39ms

MX

30ms

AAAA

39ms

TXT

150ms

CAA

39ms

HTTPS

45ms

TLSA

454ms

SOA

0ms

MTA-STS

54ms

DNSSEC

101ms

SRV

71ms

Total

996ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 21:47:39	996ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-26 20:21:31	852ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-25 16:05:40	3356ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-20 13:23:32	10750ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-17 04:30:33	6797ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-11 19:47:29	17260ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-09 15:13:29	3160ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-03 02:27:46	4083ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-08-01 07:09:49	1363ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-26 03:23:01	2228ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-24 00:41:10	2685ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-20 15:55:49	1185ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-14 16:25:17	1262ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-12 04:38:31	3189ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-07-03 11:23:06	7428ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-28 00:03:11	1044ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-23 10:08:33	1036ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-22 10:15:12	1168ms	2 NS 0 A 1 MX	⚠️ Bogus	View
2026-06-20 01:19:11	7070ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-20 00:28:16	4693ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-18 22:25:32	2799ms	2 NS 0 A 1 MX	🔒 Secure	View
2026-06-18 17:15:39	812ms	2 NS 0 A 1 MX	⚠️ Bogus	View
2026-06-16 20:10:28	4371ms	0 NS 0 A 0 MX	🔒 Secure	View