bolig-byg.dk

📜 Historical scan 2026-10-20 07:36:39 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

bolig-byg.dk is a .dk domain served by 2 nameservers (cody.ns.cloudflare.com, crystal.ns.cloudflare.com). It was registered on 4 March 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.31.29 is hosted by Cloudflare, Inc. (AS13335). The zone is not DNSSEC-signed, 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 62ms

Nameserver	IP addresses	PTR	ASN / ISP
cody.ns.cloudflare.com	108.162.193.107 172.64.33.107 173.245.59.107 2606:4700:58::adf5:3b6b 2803:f800:50::6ca2:c16b 2a06:98c1:50::ac40:216b	cody.ns.cloudflare.com cody.ns.cloudflare.com cody.ns.cloudflare.com cody.ns.cloudflare.com cody.ns.cloudflare.com cody.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
crystal.ns.cloudflare.com	108.162.194.202 162.159.38.202 172.64.34.202 2606:4700:50::a29f:26ca 2803:f800:50::6ca2:c2ca 2a06:98c1:50::ac40:22ca	crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.ns.cloudflare.com crystal.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 74ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.31.29	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.174.230	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 82ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:1f1d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:aee6	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 75ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.31.29,172.67.174.230 ech=AEX+DQBB3AAgACCRHqVVpCpwRMGHYPqP1056N6ZaZyZ1qsLyFZXYaUAleQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:1f1d,2606:4700:3035::ac43:aee6

📝 TXT Records#

📝

No TXT records found

✉️ SPF#

✗ No SPF record — mail spoofing not restricted

📨 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 2026-10-22 03:03:55

www	104.21.31.29 172.67.174.230 2606:4700:3035::6815:1f1d 2606:4700:3035::ac43:aee6 (AS13335) (address records, no CNAME)
www vs bare domain	Same network bolig-byg.dk: 104.21.31.29 172.67.174.230 2606:4700:3035::6815:1f1d 2606:4700:3035::ac43:aee6 (AS13335) www.bolig-byg.dk: 104.21.31.29 172.67.174.230 2606:4700:3035::6815:1f1d 2606:4700:3035::ac43:aee6 (AS13335)
Wildcard	No

🔏 ACME Challenge#

Type	Name	Value
TXT	_acme-challenge.bolig-byg.dk	RzmR8djM0ciEVB_RTqh-wWG0gZtZc1dk_y76JPSosuc
TXT	_acme-challenge.bolig-byg.dk	vPBXZz_Ybh5xos-N2eYfijonQn8R_876C5-Ap-X213k

🔗 TLSA / DANE#

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

🔐 DNSSEC#

190ms

Check	Result
Validation Status	🔓 Insecure
AD Flag (resolver validates)	✗ Not set
DS Record	✗ Not found
DNSKEY Record	✗ Not found
Flags	unsigned answer

🏷️ SOA#

38ms

Field	Value
Serial	2417892499
Primary NS (MNAME)	cody.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 08:08:21

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2022-03-04
Expires	2027-03-03 (127d)

📋 WHOIS#

⏱️ Lookup Timing#

62ms

74ms

77ms

AAAA

82ms

TXT

317ms

CAA

78ms

HTTPS

75ms

TLSA

215ms

SOA

38ms

MTA-STS

107ms

DNSSEC

190ms

SRV

124ms

Total

1809ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-22 03:03:55	2086ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-20 07:36:39 shown	1809ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 15:33:19	541ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-25 18:49:01	2406ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-21 02:07:46	2082ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-21 02:42:41	1390ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-20 00:51:52	7743ms	2 NS 2 A 0 MX	🔓 Insecure
2026-07-21 21:51:17	8807ms	2 NS 2 A 0 MX	❓ Unknown
2026-07-02 00:19:47	777ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-16 15:35:57	407ms	2 NS 2 A 0 MX	🔓 Insecure