jacobsen-byg.dk

📜 Historical scan 2026-06-18 02:18:30 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

jacobsen-byg.dk is a .dk domain served by 2 nameservers (asa.ns.cloudflare.com, cleo.ns.cloudflare.com). It was registered on 14 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 188.114.96.1 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 28ms

Nameserver	IP addresses	PTR	ASN / ISP
asa.ns.cloudflare.com	108.162.192.246 172.64.32.246 173.245.58.246 2606:4700:50::adf5:3af6 2803:f800:50::6ca2:c0f6 2a06:98c1:50::ac40:20f6	asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com asa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
cleo.ns.cloudflare.com	108.162.193.89 172.64.33.89 173.245.59.89 2606:4700:58::adf5:3b59 2803:f800:50::6ca2:c159 2a06:98c1:50::ac40:2159	cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.ns.cloudflare.com cleo.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 29ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	—	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	—	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records#

📧

No MX records found

🔷 AAAA Records (IPv6)#

2 records 33ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 32ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBUgAgACBikhzZAr7Rk2pMlFm723zwb2k97MV6NY84MH+YnyTnJgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1

📝 TXT Records#

2 records 149ms

TXT Record
google-site-verification=I1UXV7NGo-cGMOYEwDa9XCW1oWGKIAmNGhKSqOi7M-U
v=spf1 ip4:185.26.104.0/22 ~all

✉️ SPF#

Policy	Record (jacobsen-byg.dk)
~all (soft fail)	v=spf1 ip4:185.26.104.0/22 ~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 2026-10-11 22:27:50

www	104.21.74.102 172.67.157.48 2606:4700:3034::6815:4a66 2606:4700:3037::ac43:9d30 (AS13335) (address records, no CNAME)
www vs bare domain	Same network jacobsen-byg.dk: 104.21.74.102 172.67.157.48 2606:4700:3034::6815:4a66 2606:4700:3037::ac43:9d30 (AS13335) www.jacobsen-byg.dk: 104.21.74.102 172.67.157.48 2606:4700:3034::6815:4a66 2606:4700:3037::ac43:9d30 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 0/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

115ms

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

🏷️ SOA#

27ms

Field	Value
Serial	2406957710
Primary NS (MNAME)	asa.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 11:38:47

Field	Value
Registrar	NETIM
Registered	2026-02-14
Expires	2027-02-13 (111d)

📋 WHOIS#

⏱️ Lookup Timing#

28ms

29ms

28ms

AAAA

33ms

TXT

149ms

CAA

28ms

HTTPS

32ms

TLSA

50ms

SOA

27ms

MTA-STS

89ms

DNSSEC

115ms

SRV

185ms

Total

1360ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 22:27:50	624ms	2 NS 2 A 0 MX	🔓 Insecure
2026-10-05 11:02:16	1242ms	2 NS 2 A 0 MX	🔓 Insecure
2026-09-30 10:36:43	425ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-26 19:04:49	585ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-13 10:03:25	8762ms	2 NS 2 A 0 MX	🔓 Insecure
2026-08-07 21:55:58	9726ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-22 05:02:20	564ms	2 NS 2 A 0 MX	🔓 Insecure
2026-06-18 02:18:30 shown	1360ms	2 NS 2 A 0 MX	🔓 Insecure