cold-sejl.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
jihoon.ns.cloudflare.com	108.162.195.233 162.159.44.233 172.64.35.233 2606:4700:58::a29f:2ce9 2803:f800:50::6ca2:c3e9 2a06:98c1:50::ac40:23e9	jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com jihoon.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
june.ns.cloudflare.com	108.162.192.176 172.64.32.176 173.245.58.176 2606:4700:50::adf5:3ab0 2803:f800:50::6ca2:c0b0 2a06:98c1:50::ac40:20b0	june.ns.cloudflare.com june.ns.cloudflare.com june.ns.cloudflare.com june.ns.cloudflare.com june.ns.cloudflare.com june.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 895ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
93.191.156.4	300s	linux170.unoeuro.com	AS48854	team.blue Denmark A/S	93.191.152.0/21	🇩🇰 Denmark	—

📧 MX Records1 records 63ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	coldsejl-dk01b.mail.protection.outlook.com	2a01:111:f403:ca04::4 2a01:111:f403:ca04::6 2a01:111:f403:ca04::8 2a01:111:f403:ca09::8 52.101.68.12 52.101.68.8 52.101.73.16 52.101.73.24	mail-db4pr02cu00204.inbound.protection.outlook.com mail-db4pr02cu00406.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-du0pr03cu00100.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00300.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

🔌 SRV Records1 records 80ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	5	10	5061	sipfed.online.lync.com

📝 TXT Records2 records 255ms

TXT Record
MS=ms64712674
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.cold-sejl.dk)
p=none (monitor only)	v=DMARC1; p=none

📬 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)

🔐 DNSSEC2074ms

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

🏷️ SOA0ms

Field	Value
Serial	2412961119
Primary NS (MNAME)	jihoon.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

50ms

A

895ms

MX

63ms

AAAA

693ms

TXT

255ms

CAA

63ms

HTTPS

54ms

TLSA

314ms

SOA

0ms

MTA-STS

68ms

DNSSEC

2074ms

SRV

80ms

Total

2965ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-28 03:01:33	2965ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-23 11:14:39	1660ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-07 02:43:17	1696ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-01 14:18:30	3184ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-17 03:32:55	1617ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-07 02:00:31	2523ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-27 00:29:58	1343ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 09:21:20	11049ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-22 08:04:09	1182ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-20 07:15:59	967ms	2 NS 1 A 1 MX	⚠️ Bogus	View
2026-06-16 21:45:59	655ms	2 NS 1 A 1 MX	🔒 Secure	View