fischerbyg.dk

📜 Historical scan 2026-10-02 09:45:06 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

fischerbyg.dk is a .dk domain served by 2 nameservers (dylan.ns.cloudflare.com, sharon.ns.cloudflare.com). It was registered on 18 January 2019 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.53.138 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by fischerbyg-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, has no DMARC policy and is reachable over IPv6. Below are all of its DNS records from this scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.

🖥️ Nameservers#

2 records 37ms

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 Records#

2 records 40ms

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 Records#

1 records 38ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	fischerbyg-dk.mail.protection.outlook.com	2a01:111:f403:c967::c 2a01:111:f403:ca04::c 2a01:111:f403:ca09::20 2a01:111:f403:ca48::a 52.101.103.140 52.101.103.39 52.101.209.28 52.101.91.153	mail-cpjpr05cu00204.inbound.protection.outlook.com mail-db9pr02cu00204.inbound.protection.outlook.com mail-as8pr05cu00400.inbound.protection.outlook.com mail-miypr02cu00202.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr05cu00207.inbound.protection.outlook.com mail-cpjpr05cu00104.inbound.protection.outlook.com mail-matpr04cu00101.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 52ms

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 Records#

1 records 36ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.53.138,172.67.213.99 ech=AEX+DQBB4wAgACCtq4wkNTyyG5zVQKjnjbjYCsoMgwEoHa8rCGYhSxbMSAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::6815:358a,2606:4700:3034::ac43:d563

📝 TXT Records#

3 records 192ms

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

🧩 Web & zone#

latest probe, not this scan · checked 2026-10-13 09:03:43

www	104.21.53.138 172.67.213.99 2606:4700:3033::6815:358a 2606:4700:3034::ac43:d563 (AS13335) (address records, no CNAME)
www vs bare domain	Same network fischerbyg.dk: 104.21.53.138 172.67.213.99 2606:4700:3033::6815:358a 2606:4700:3034::ac43:d563 (AS13335) www.fischerbyg.dk: 104.21.53.138 172.67.213.99 2606:4700:3033::6815:358a 2606:4700:3034::ac43:d563 (AS13335)
Wildcard	No
Denial of existence	Compact NSEC (RFC 9824, "black lies") not walkable
CDS / CDNSKEY	Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

56ms

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

🏷️ SOA#

30ms

Field	Value
Serial	2415237023
Primary NS (MNAME)	dylan.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-05 03:50:53

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2019-01-18
Expires	2027-01-31 (106d)

📋 WHOIS#

⏱️ Lookup Timing#

37ms

40ms

38ms

AAAA

52ms

TXT

192ms

CAA

39ms

HTTPS

36ms

TLSA

364ms

SOA

30ms

MTA-STS

63ms

DNSSEC

56ms

SRV

67ms

Total

857ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 09:03:43	3242ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-05 03:30:36	1240ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-03 03:00:14	1351ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-02 09:45:06 shown	857ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-01 07:05:31	1210ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-29 22:37:21	1411ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-25 09:13:11	1844ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-20 02:28:39	3515ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-15 19:17:17	1870ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-26 13:21:38	813ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-10 00:30:18	5968ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-04 16:41:13	1864ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-18 07:05:06	5292ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-10 20:30:48	1434ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-02 10:30:54	2306ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 10:12:10	1489ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 10:05:43	7101ms	2 NS 2 A 1 MX	🔒 Secure