l757.dk DNS records

🖥️ Nameservers2 records 122ms

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 83ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
94.137.143.204	300s	—	AS48854	team.blue Denmark A/S	94.137.128.0/20	🇩🇰 Denmark	Aalborg

📧 MX Records1 records 75ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	l757-dk.mail.protection.outlook.com	2a01:111:f403:ca09::1 2a01:111:f403:ca09::3 2a01:111:f403:ca09::8 2a01:111:f403:ca09::f 52.101.68.27 52.101.73.126 52.101.73.155 52.101.73.26	mail-as9pr07cu00301.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-am7pr02cu00203.inbound.protection.outlook.com mail-as9pr05cu01302.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 272ms

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

📝 TXT Records2 records 352ms

TXT Record
MS=ms78529229
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (l757.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.l757.dk)
p=reject	v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r; fo=1; rf=afrf; rua=mailto:dmarc@cloudpit.dk; ruf=mailto:dmarc@cloudpit.dk; pct=100; ri=86400

📬 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
TXT	_acme-challenge.l757.dk	6Bwf-yrCNR-kN_QO_ANUC45cSqvW2FG2BO6ZFgrziqs
TXT	_acme-challenge.l757.dk	mqLBsdc3p5Q4pg_J30y7noSHreBHnSwoNxsnUgqBysk

🔗 TLSA / DANE

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

🔐 DNSSEC249ms

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

🏷️ SOA0ms

Field	Value
Serial	2413289157
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

122ms

A

83ms

MX

75ms

AAAA

66ms

TXT

352ms

CAA

72ms

HTTPS

74ms

TLSA

900ms

SOA

0ms

MTA-STS

162ms

DNSSEC

249ms

SRV

272ms

Total

2029ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 08:18:51	2029ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-24 00:26:44	2252ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-20 23:50:00	3871ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-18 20:29:21	4664ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-08-06 03:16:00	1487ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-18 10:13:21	1428ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-07-06 21:23:20	9945ms	2 NS 1 A 1 MX	🔒 Secure	View
2026-06-17 13:43:33	2376ms	2 NS 1 A 1 MX	🔒 Secure	View