iconstruction.dk

📜 Historical scan 2026-06-25 09:20:01 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

iconstruction.dk is a .dk domain served by 2 nameservers (cory.ns.cloudflare.com, rosa.ns.cloudflare.com). It was registered on 30 September 2010 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.106 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.mikrosec.net. 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 39ms

Nameserver	IP addresses	PTR	ASN / ISP
cory.ns.cloudflare.com	108.162.193.93 172.64.33.93 173.245.59.93 2606:4700:58::adf5:3b5d 2803:f800:50::6ca2:c15d 2a06:98c1:50::ac40:215d	cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com cory.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
rosa.ns.cloudflare.com	108.162.192.228 172.64.32.228 173.245.58.228 2606:4700:50::adf5:3ae4 2803:f800:50::6ca2:c0e4 2a06:98c1:50::ac40:20e4	rosa.ns.cloudflare.com rosa.ns.cloudflare.com rosa.ns.cloudflare.com rosa.ns.cloudflare.com rosa.ns.cloudflare.com rosa.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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.106	600s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.131.253	600s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 27ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	600s	mail.mikrosec.net	93.167.225.233	mail.mikrosec.net	AS3292 TDC Holding A/S

🔷 AAAA Records (IPv6)#

2 records 76ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:83fd	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::6815:46a	600s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 36ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.106,172.67.131.253 ech=AEX+DQBBrQAgACDfKA9Er9zsycphwr8CPeCFgeOw+dJUA372SNUUI7jcdwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:83fd,2606:4700:3036::6815:46a

📝 TXT Records#

1 records 179ms

TXT Record
v=spf1 a ip4:93.167.225.233 mx:mail.mikrosec.net -all

✉️ SPF#

Policy	Record (iconstruction.dk)
-all (hard fail)	v=spf1 a ip4:93.167.225.233 mx:mail.mikrosec.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 2026-10-13 21:37:51

www	104.21.4.106 172.67.131.253 2606:4700:3037::6815:46a 2606:4700:3037::ac43:83fd (AS13335) (address records, no CNAME)
www vs bare domain	Same network iconstruction.dk: 104.21.4.106 172.67.131.253 2606:4700:3037::6815:46a 2606:4700:3037::ac43:83fd (AS13335) www.iconstruction.dk: 104.21.4.106 172.67.131.253 2606:4700:3037::6815:46a 2606:4700:3037::ac43:83fd (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: 2/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

56ms

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

🏷️ SOA#

25ms

Field	Value
Serial	2407035099
Primary NS (MNAME)	cory.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-07 04:53:50

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2010-09-30
Expires	2027-09-30 (347d)

📋 WHOIS#

⏱️ Lookup Timing#

39ms

37ms

27ms

AAAA

76ms

TXT

179ms

CAA

30ms

HTTPS

36ms

TLSA

297ms

SOA

25ms

MTA-STS

76ms

DNSSEC

56ms

SRV

102ms

Total

1125ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-13 21:37:51	1647ms	2 NS 2 A 1 MX	🔒 Secure
2026-10-07 04:28:15	511ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-30 03:25:24	468ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-23 14:02:36	678ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 19:00:23	547ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-10 14:34:36	1298ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-07 22:54:25	1083ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-24 22:13:31	1053ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-11 01:30:47	979ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-25 09:20:01 shown	1125ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 04:04:29	526ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 23:41:32	704ms	2 NS 2 A 1 MX	🔒 Secure