falckekdahl.dk DNS records

🖥️ Nameservers2 records 47ms

Nameserver	IP addresses	PTR	ASN / ISP
theo.ns.cloudflare.com	108.162.193.144 172.64.33.144 173.245.59.144 2606:4700:58::adf5:3b90 2803:f800:50::6ca2:c190 2a06:98c1:50::ac40:2190	theo.ns.cloudflare.com theo.ns.cloudflare.com theo.ns.cloudflare.com theo.ns.cloudflare.com theo.ns.cloudflare.com theo.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
vivienne.ns.cloudflare.com	108.162.194.50 162.159.38.50 172.64.34.50 2606:4700:50::a29f:2632 2803:f800:50::6ca2:c232 2a06:98c1:50::ac40:2232	vivienne.ns.cloudflare.com vivienne.ns.cloudflare.com vivienne.ns.cloudflare.com vivienne.ns.cloudflare.com vivienne.ns.cloudflare.com vivienne.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records1 records 46ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
89.233.5.168	300s	—	AS3308	Norlys Telco A/S	89.233.0.0/18	🇩🇰 Denmark	Copenhagen

📧 MX Records1 records 61ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	falckekdahl-dk.mail.protection.outlook.com	2a01:111:f403:ca04::a 2a01:111:f403:ca09::c 2a01:111:f403:ca09::f 2a01:111:f403:ca48::a 52.101.103.140 52.101.73.123 52.101.73.153 52.101.73.19	mail-du0pr03cu00102.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 82ms

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

📝 TXT Records2 records 210ms

TXT Record
MS=ms26988936
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (falckekdahl.dk)
-all (hard fail)	v=spf1 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)

🔐 DNSSEC78ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA0ms

Field	Value
Serial	2410013970
Primary NS (MNAME)	theo.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

47ms

A

46ms

MX

61ms

AAAA

40ms

TXT

210ms

CAA

64ms

HTTPS

46ms

TLSA

761ms

SOA

0ms

MTA-STS

73ms

DNSSEC

78ms

SRV

82ms

Total

1924ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-31 16:20:28	1924ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-21 20:16:29	3388ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-07-17 20:35:05	9602ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-19 13:50:24	1429ms	2 NS 1 A 1 MX	🔓 Insecure	View
2026-06-17 09:12:27	766ms	2 NS 1 A 1 MX	🔓 Insecure	View