optimalt-byg.dk

📜 Historical scan 2026-06-23 08:35:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

optimalt-byg.dk is a .dk domain served by 2 nameservers (boyd.ns.cloudflare.com, irena.ns.cloudflare.com). It was registered on 22 June 2026 (WHOIS) and first appeared in the .dk zone on 23 June 2026. Its website address 188.114.96.1 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route2.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. 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 55ms

Nameserver	IP addresses	PTR	ASN / ISP
boyd.ns.cloudflare.com	108.162.193.75 172.64.33.75 173.245.59.75 2606:4700:58::adf5:3b4b 2803:f800:50::6ca2:c14b 2a06:98c1:50::ac40:214b	boyd.ns.cloudflare.com boyd.ns.cloudflare.com boyd.ns.cloudflare.com boyd.ns.cloudflare.com boyd.ns.cloudflare.com boyd.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
irena.ns.cloudflare.com	108.162.194.79 162.159.38.79 172.64.34.79 2606:4700:50::a29f:264f 2803:f800:50::6ca2:c24f 2a06:98c1:50::ac40:224f	irena.ns.cloudflare.com irena.ns.cloudflare.com irena.ns.cloudflare.com irena.ns.cloudflare.com irena.ns.cloudflare.com irena.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 54ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
188.114.96.1	600s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—
188.114.97.1	600s	—	AS13335	Cloudflare, Inc.	188.114.96.0/22	—	—

📧 MX Records#

3 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
53	600s	route2.mx.cloudflare.net	162.159.205.17 162.159.205.18 162.159.205.19 2606:4700:f5::10 2606:4700:f5::e 2606:4700:f5::f	route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net route2.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
58	600s	route1.mx.cloudflare.net	162.159.205.11 162.159.205.12 162.159.205.13 2606:4700:f5::b 2606:4700:f5::c 2606:4700:f5::d	route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net route1.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
67	600s	route3.mx.cloudflare.net	162.159.205.23 162.159.205.24 162.159.205.25 2606:4700:f5::11 2606:4700:f5::12 2606:4700:f5::13	route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net route3.mx.cloudflare.net	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🔷 AAAA Records (IPv6)#

2 records 174ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:dc50	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:5e3d	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 31ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.94.61,172.67.220.80 ech=AEX+DQBB/wAgACBzP7RCLIZTlu8oc8eO6hvVvnMYOcwSsDyQx1tFidacKAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:dc50,2606:4700:3035::6815:5e3d

📝 TXT Records#

1 records 249ms

TXT Record
v=spf1 include:_spf.mx.cloudflare.net ~all

✉️ SPF#

Policy	Record (optimalt-byg.dk)
~all (soft fail)	v=spf1 include:_spf.mx.cloudflare.net ~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 2026-10-08 00:46:24

www	104.21.94.61 172.67.220.80 2606:4700:3032::ac43:dc50 2606:4700:3035::6815:5e3d (AS13335) (address records, no CNAME)
www vs bare domain	Same network optimalt-byg.dk: 104.21.94.61 172.67.220.80 2606:4700:3032::ac43:dc50 2606:4700:3035::6815:5e3d (AS13335) www.optimalt-byg.dk: 104.21.94.61 172.67.220.80 2606:4700:3032::ac43:dc50 2606:4700:3035::6815:5e3d (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: ~all

No problems found

🔗 TLSA / DANE#

9 records 56ms

Service / Owner	Type	Cert association
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route1.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route2.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	9BE5B7D47F9EFF930C11EB04D27CAE6B…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-TA · SPKI · SHA-256	59E738E674221702AF1EDB87C5200C1A…
SMTP _25._tcp.route3.mx.cloudflare.net	DANE-EE · SPKI · SHA-256	0F0C6C164A36F97E7B4C5A5B69D6F4F2…

🔐 DNSSEC#

90ms

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

🏷️ SOA#

30ms

Field	Value
Serial	2407616036
Primary NS (MNAME)	boyd.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-08 00:59:53

Field	Value
Registrar	Dynadot LLC
Registered	2026-06-22
Expires	2027-06-21 (245d)

📋 WHOIS#

⏱️ Lookup Timing#

55ms

54ms

AAAA

174ms

TXT

249ms

CAA

54ms

HTTPS

31ms

TLSA

56ms

SOA

30ms

MTA-STS

66ms

DNSSEC

90ms

SRV

59ms

Total

1140ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-08 00:46:24	1148ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-23 19:29:53	834ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-07 21:15:27	4079ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-03 21:53:06	830ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-27 05:16:03	1157ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-26 05:14:41	1568ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-21 18:50:42	2080ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-20 18:48:14	4238ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-23 09:53:03	10709ms	2 NS 2 A 3 MX	🔓 Insecure
2026-07-03 15:06:27	10163ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-23 08:35:56 shown	1140ms	2 NS 2 A 3 MX	🔓 Insecure