fischerbyg.dk DNS records

🖥️ Nameservers2 records 34ms

Nameserver	IP addresses	PTR	ASN / ISP
dylan.ns.cloudflare.com	108.162.195.187 162.159.44.187 172.64.35.187 2606:4700:58::a29f:2cbb 2803:f800:50::6ca2:c3bb 2a06:98c1:50::ac40:23bb	dylan.ns.cloudflare.com dylan.ns.cloudflare.com dylan.ns.cloudflare.com dylan.ns.cloudflare.com dylan.ns.cloudflare.com dylan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sharon.ns.cloudflare.com	108.162.192.221 172.64.32.221 173.245.58.221 2606:4700:50::adf5:3add 2803:f800:50::6ca2:c0dd 2a06:98c1:50::ac40:20dd	sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com sharon.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 26ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.53.138	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.213.99	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 32ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	fischerbyg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca04::f 2a01:111:f403:ca09::24 2a01:111:f403:ca09::3 52.101.68.21 52.101.68.27 52.101.73.123 52.101.73.30	mail-du2pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr02cu00204.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr05cu00306.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	104.21.53.138

🔷 AAAA Records (IPv6)2 records 29ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::6815:358a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3034::ac43:d563	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 29ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.53.138,172.67.213.99 ech=AEX+DQBB3gAgACAozdg6TF+IOLutI2raZBDRPBvAjRJn2ExG9kdRfnpPIAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:358a,2606:4700:3034::ac43:d563

📝 TXT Records3 records 135ms

TXT Record
autodiscover.outlook.com
MS=ms53282854
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (fischerbyg.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)

🔐 DNSSEC96ms

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

🏷️ SOA0ms

Field	Value
Serial	2413163419
Primary NS (MNAME)	dylan.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

34ms

A

26ms

MX

32ms

AAAA

29ms

TXT

135ms

CAA

34ms

HTTPS

29ms

TLSA

258ms

SOA

0ms

MTA-STS

44ms

DNSSEC

96ms

SRV

72ms

Total

813ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-26 13:21:38	813ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-10 00:30:18	5968ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-08-04 16:41:13	1864ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-18 07:05:06	5292ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-10 20:30:48	1434ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-07-02 10:30:54	2306ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-17 10:12:10	1489ms	2 NS 2 A 1 MX	🔒 Secure	View
2026-06-17 10:05:43	7101ms	2 NS 2 A 1 MX	🔒 Secure	View