fischerbyg.dk

📜 Historical scan 2026-06-17 10:12:10 · ← 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 67ms

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 35ms

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

📧 MX Records#

1 records 34ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	fischerbyg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::8 2a01:111:f403:ca09::4 2a01:111:f403:ca09::7 2a01:111:f403:ca09::d 52.101.68.36 52.101.73.153 52.101.73.16 52.101.73.24	mail-db5pr02cu00100.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-as8pr05cu00401.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00300.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

🔷 AAAA Records (IPv6)#

2 records 43ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:358a	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:d563	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 52ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.53.138,172.67.213.99 ech=AEX+DQBB4AAgACDCYF+8kn+lkITHi/BN3p8uJF8P53PV1auDSJxA263SZwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:358a,2606:4700:3035::ac43:d563

📝 TXT Records#

3 records 109ms

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#

74ms

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

🏷️ SOA#

73ms

Field	Value
Serial	2406942609
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#

67ms

35ms

34ms

AAAA

43ms

TXT

109ms

CAA

61ms

HTTPS

52ms

TLSA

440ms

SOA

73ms

MTA-STS

41ms

DNSSEC

74ms

SRV

0ms

Total

1489ms

🕐 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	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 shown	1489ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 10:05:43	7101ms	2 NS 2 A 1 MX	🔒 Secure