pheiffer.dk DNS records

🖥️ Nameservers2 records 31ms

Nameserver	IP addresses	PTR	ASN / ISP
donald.ns.cloudflare.com	108.162.193.158 172.64.33.158 173.245.59.158 2606:4700:58::adf5:3b9e 2803:f800:50::6ca2:c19e 2a06:98c1:50::ac40:219e	donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com donald.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ines.ns.cloudflare.com	108.162.192.164 172.64.32.164 173.245.58.164 2606:4700:50::adf5:3aa4 2803:f800:50::6ca2:c0a4 2a06:98c1:50::ac40:20a4	ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.ns.cloudflare.com ines.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 31ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	pheiffer-dk.mail.protection.outlook.com	2a01:111:f403:c967::8 2a01:111:f403:ca04::7 2a01:111:f403:ca09::5 2a01:111:f403:ca09::9 52.101.68.12 52.101.68.15 52.101.73.145 52.101.73.8	mail-cpjpr04cu00100.inbound.protection.outlook.com mail-db4pr02cu00307.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-am6pr02cu00301.inbound.protection.outlook.com mail-am0pr04cu00500.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 → 40.104.116.56

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

🔌 SRV Records1 records 50ms

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

📝 TXT Records2 records 147ms

TXT Record
MS=ms61486740
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

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

📨 DMARC

Policy	Record (_dmarc.pheiffer.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:89dded2aab1340219eae2da9bfa0a69f@dmarc-reports.cloudflare.net

📬 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.pheiffer.dk	18C99AYJfit0tisnphjU_sdD7PBMW2XBMEZtAO6Xw2o
TXT	_acme-challenge.pheiffer.dk	2ddgF9FouRxmZagIqJFocwXamCxQJ2zm-cfbS1pwH8E

🔗 TLSA / DANE

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

🔐 DNSSEC98ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	resolution failed: ncache nxrrset

🏷️ SOA0ms

Field	Value
Serial	2413364402
Primary NS (MNAME)	donald.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

31ms

A

34ms

MX

31ms

AAAA

27ms

TXT

147ms

CAA

24ms

HTTPS

30ms

TLSA

992ms

SOA

0ms

MTA-STS

47ms

DNSSEC

98ms

SRV

50ms

Total

1528ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-09-02 15:24:59	10294ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-30 10:08:43	2311ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-28 21:38:10	1528ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-08-27 18:37:36	869ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-07-22 04:01:20	1469ms	2 NS 0 A 1 MX	🔓 Insecure	View
2026-06-17 14:44:54	2075ms	2 NS 0 A 1 MX	🔓 Insecure	View