installationsbygning.dk

📜 Historical scan 2026-10-01 16:09:41  ·  ← Latest scan
⬇ Zone File 📜 Timeline & History ⚡ Scan Now

installationsbygning.dk is a .dk domain served by 2 nameservers (leonidas.ns.cloudflare.com, peaches.ns.cloudflare.com). It was registered on 9 June 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.18.78 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1.pub.mailpod10-cph3.one.com, mx2.pub.mailpod10-cph3.one.com and 2 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   32ms
NameserverIP addressesPTRASN / ISP
leonidas.ns.cloudflare.com 108.162.195.101
162.159.44.101
172.64.35.101
2606:4700:58::a29f:2c65
2803:f800:50::6ca2:c365
2a06:98c1:50::ac40:2365		 leonidas.ns.cloudflare.com
leonidas.ns.cloudflare.com
leonidas.ns.cloudflare.com
leonidas.ns.cloudflare.com
leonidas.ns.cloudflare.com
leonidas.ns.cloudflare.com		 AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
AS13335 Cloudflare, Inc.
peaches.ns.cloudflare.com 108.162.194.239
162.159.38.239
172.64.34.239
2606:4700:50::a29f:26ef
2803:f800:50::6ca2:c2ef
2a06:98c1:50::ac40:22ef		 peaches.ns.cloudflare.com
peaches.ns.cloudflare.com
peaches.ns.cloudflare.com
peaches.ns.cloudflare.com
peaches.ns.cloudflare.com
peaches.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
IPTTLPTRASNISP / OrgCIDRCountryCity
104.21.18.78 300s — AS13335 Cloudflare, Inc. 104.21.0.0/17 — —
172.67.180.242 300s — AS13335 Cloudflare, Inc. 172.67.128.0/17 — —

📧 MX Records#

4 records   31ms
PriorityTTLMail ServerIP addressesPTRASN
10 300s mx1.pub.mailpod10-cph3.one.com 104.37.34.70 mx1.pub.mailpod10-cph3.one.com AS51468 One.com A/S
10 300s mx2.pub.mailpod10-cph3.one.com 104.37.34.71 mx2.pub.mailpod10-cph3.one.com AS51468 One.com A/S
10 300s mx3.pub.mailpod10-cph3.one.com 104.37.34.72 mx3.pub.mailpod10-cph3.one.com AS51468 One.com A/S
10 300s mx4.pub.mailpod10-cph3.one.com 104.37.34.73 mx4.pub.mailpod10-cph3.one.com AS51468 One.com A/S

📧 Autodiscover / Autoconfig#

ServiceCNAME / IP
🔷 Autodiscover172.67.180.242
🔶 Autoconfig104.21.18.78

🔷 AAAA Records (IPv6)#

2 records   30ms
IPv6 AddressTTLPTRASNISP / OrgCIDRCountryCity
2606:4700:3031::6815:124e 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —
2606:4700:3037::ac43:b4f2 300s — AS13335 Cloudflare, Inc. 2606:4700:3000:0:0:0:0:0/42 — —

🔐 HTTPS Records#

1 records   40ms
PriorityTargetSvcParams
1 service . alpn="h3,h2" ipv4hint=104.21.18.78,172.67.180.242 ech=AEX+DQBBEAAgACChO50UAaMK28udvZGd9zzhRH96f5u8+jnVeBaUIt/RNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:124e,2606:4700:3037::ac43:b4f2

📝 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 2026-10-09 11:55:28
www104.21.18.78 172.67.180.242 2606:4700:3031::6815:124e 2606:4700:3037::ac43:b4f2 (AS13335) (address records, no CNAME)
www vs bare domainSame network
WildcardYes: any name under the zone resolves

🔏 ACME Challenge#

TypeNameValue
TXT _acme-challenge.installationsbygning.dk IB8vprfGHSp4LfxsYqRzV255KqE8BIut3wGtA-xX1i8
TXT _acme-challenge.installationsbygning.dk Zgse1imI5XtVh7JAFL2l-UVUUr_0fJfGhjamtTGjp_Y

🔗 TLSA / DANE#

4 records   84ms
Service / OwnerTypeCert association
SMTP _25._tcp.mx1.pub.mailpod10-cph3.one.com DANE-EE · SPKI · SHA-256 6F2F6668E559087AD0C5D55F223128E2…
SMTP _25._tcp.mx2.pub.mailpod10-cph3.one.com DANE-EE · SPKI · SHA-256 6F2F6668E559087AD0C5D55F223128E2…
SMTP _25._tcp.mx3.pub.mailpod10-cph3.one.com DANE-EE · SPKI · SHA-256 6F2F6668E559087AD0C5D55F223128E2…
SMTP _25._tcp.mx4.pub.mailpod10-cph3.one.com DANE-EE · SPKI · SHA-256 6F2F6668E559087AD0C5D55F223128E2…

🔐 DNSSEC#

122ms
CheckResult
Validation Status🔓 Insecure
AD Flag (resolver validates)✗ Not set
DS Record✗ Not found
DNSKEY Record✗ Not found
Flagsunsigned answer

🏷️ SOA#

36ms
FieldValue
Serial2416343627
Primary NS (MNAME)leonidas.ns.cloudflare.com
Responsible (RNAME)dns@cloudflare.com
Refresh10000s
Retry2400s
Expire604800s
Minimum (neg-cache TTL)1800s

📋 Registration#

WHOIS fetched 2026-10-02 16:39:53
FieldValue
RegistrarPunktum dk A/S (direct)
Registered2021-06-09
Expires2027-06-30 (250d)
📋 WHOIS#

⏱️ Lookup Timing#

NS
32ms
A
35ms
MX
31ms
AAAA
30ms
TXT
172ms
CAA
33ms
HTTPS
40ms
TLSA
84ms
SOA
36ms
MTA-STS
60ms
DNSSEC
122ms
SRV
70ms
Total
938ms

🕐 Scan History#

Scanned AtDurationRecordsDNSSEC
2026-10-09 11:55:28 615ms 2 NS 2 A 4 MX 🔓 Insecure
2026-10-02 16:11:13 620ms 2 NS 2 A 4 MX 🔓 Insecure
2026-10-01 16:09:41 shown 938ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-30 16:03:00 546ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-29 19:13:59 933ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-26 18:43:11 912ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-24 17:58:08 838ms 2 NS 2 A 4 MX 🔓 Insecure
2026-09-23 17:39:25 901ms 2 NS 1 A 4 MX 🔓 Insecure
2026-09-05 05:45:26 652ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-27 17:12:11 1207ms 2 NS 1 A 4 MX 🔒 Secure
2026-08-16 08:01:36 2939ms 2 NS 1 A 4 MX 🔒 Secure
2026-07-15 18:19:50 4982ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-29 03:38:41 799ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-19 13:41:15 1002ms 2 NS 1 A 4 MX 🔒 Secure
2026-06-17 13:12:26 727ms 2 NS 1 A 4 MX 🔒 Secure
dhd.dk [/] search Domains, Hosts & DNS — .dk zone