seydlitz.dk DNS records

🖥️ Nameservers2 records 50ms

Nameserver	IP addresses	PTR	ASN / ISP
ben.ns.cloudflare.com	108.162.193.103 172.64.33.103 173.245.59.103 2606:4700:58::adf5:3b67 2803:f800:50::6ca2:c167 2a06:98c1:50::ac40:2167	ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com ben.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
vera.ns.cloudflare.com	108.162.192.147 172.64.32.147 173.245.58.147 2606:4700:50::adf5:3a93 2803:f800:50::6ca2:c093 2a06:98c1:50::ac40:2093	vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com vera.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 32ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.41.89	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.163.71	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 65ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	300s	seydlitz-dk.mail.protection.outlook.com	2a01:111:f403:ca04::f 2a01:111:f403:ca09::20 2a01:111:f403:ca09::9 2a01:111:f403:ca09::c 52.101.68.10 52.101.68.3 52.101.73.123 52.101.73.26	mail-db7pr03cu00507.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-as8pr04cu00801.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00403.inbound.protection.outlook.com mail-am6pr02cu00203.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
🔶 Autoconfig	172.67.163.71

🔷 AAAA Records (IPv6)2 records 42ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:2959	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:a347	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 53ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.41.89,172.67.163.71 ech=AEX+DQBB8gAgACDBlaShUNszepVlr+fR4WskQoMKgriqZm6u9xrVV0BFJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:2959,2606:4700:3036::ac43:a347

📝 TXT Records3 records 216ms

TXT Record
google-site-verification=1vujFx54EnvPzbC0ceWD2tRmrDK5gus2a9Lhdi_acQY
MS=ms65754059
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (seydlitz.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)

🔐 DNSSEC94ms

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	2411218533
Primary NS (MNAME)	ben.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

32ms

MX

65ms

AAAA

42ms

TXT

216ms

CAA

47ms

HTTPS

53ms

TLSA

342ms

SOA

0ms

MTA-STS

71ms

DNSSEC

94ms

SRV

100ms

Total

1616ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 10:09:13	1616ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-03 21:35:59	17507ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-26 21:14:08	1407ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-23 17:20:34	1205ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-17 13:43:55	4795ms	2 NS 2 A 1 MX	🔓 Insecure	View