strestrupif.dk DNS records

🖥️ Nameservers2 records 67ms

Nameserver	IP addresses	PTR	ASN / ISP
jeff.ns.cloudflare.com	108.162.193.124 172.64.33.124 173.245.59.124 2606:4700:58::adf5:3b7c 2803:f800:50::6ca2:c17c 2a06:98c1:50::ac40:217c	jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com jeff.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
natasha.ns.cloudflare.com	108.162.194.117 162.159.38.117 172.64.34.117 2606:4700:50::a29f:2675 2803:f800:50::6ca2:c275 2a06:98c1:50::ac40:2275	natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com natasha.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 89ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.6.166	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.135.9	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 60ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	strestrupif-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::5 2a01:111:f403:ca04::a 2a01:111:f403:ca09::26 52.101.68.16 52.101.68.21 52.101.73.153 52.101.73.8	mail-dbapr03cu00100.inbound.protection.outlook.com mail-db3pr0202cu00205.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-am8pr83cu00106.inbound.protection.outlook.com mail-db4pr02cu00400.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-as8pr05cu00401.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 → 40.104.116.40

🔷 AAAA Records (IPv6)2 records 65ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3031::6815:6a6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:8709	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 68ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.6.166,172.67.135.9 ech=AEX+DQBBEAAgACA7If8rNglk9KVKZETb+2qIlzSUhPBSk880QdeYlfeJcwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:6a6,2606:4700:3034::ac43:8709

📝 TXT Records1 records 224ms

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

✉️ SPF

Policy	Record (strestrupif.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)

🔐 DNSSEC108ms

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	2410375555
Primary NS (MNAME)	jeff.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

67ms

A

89ms

MX

60ms

AAAA

65ms

TXT

224ms

CAA

70ms

HTTPS

68ms

TLSA

426ms

SOA

0ms

MTA-STS

96ms

DNSSEC

108ms

SRV

92ms

Total

1178ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 00:32:04	1178ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-25 12:39:18	1064ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-14 17:08:37	26418ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-24 19:15:58	1269ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-22 16:37:28	1297ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-17 13:15:14	5328ms	2 NS 2 A 1 MX	🔓 Insecure	View