constructioncenter.dk DNS records

🖥️ Nameservers4 records 44ms

Nameserver	IP addresses	PTR	ASN / ISP
ns1.simply.com	2a02:2339:1:15c::4562:4562 91.197.248.78	ns1.simply.com ns1.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns2.simply.com	185.25.141.15 2a02:2339:4006:101::4562:4562	ns2.simply.com ns2.simply.com	AS48854 team.blue Denmark A/S AS48854 team.blue Denmark A/S
ns3.simply.com	91.197.248.79	ns3.simply.com	AS48854 team.blue Denmark A/S
ns4.simply.com	91.197.248.80	ns4.simply.com	AS48854 team.blue Denmark A/S

🌍 A Records1 records 43ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
144.76.135.224	3600s	static01.bubbleweb.dk	AS24940	Hetzner Online GmbH	144.76.0.0/16	🇩🇪 Germany	Falkenstein

📧 MX Records1 records 39ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	constructioncenter-dk.mail.protection.outlook.com	2a01:111:f403:ca04::10 2a01:111:f403:ca04::a 2a01:111:f403:ca04::f 2a01:111:f403:ca09::f 52.101.68.10 52.101.68.21 52.101.73.11 52.101.73.16	mail-dbapr03cu00100.inbound.protection.outlook.com mail-du0pr03cu00102.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am7pr05cu00307.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-db4pr02cu00205.inbound.protection.outlook.com mail-am1pr04cu00103.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com	AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation AS8075 Microsoft Corporation

📧 Autodiscover / Autoconfig

Service	CNAME / IP
🔷 Autodiscover	autodiscover.outlook.com → 40.104.116.8

🔷 AAAA Records (IPv6)

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records1 records 160ms

TXT Record
v=spf1 include:spf.officernd.com include:spf.protection.outlook.com -all

✉️ SPF

Policy	Record (constructioncenter.dk)
-all (hard fail)	v=spf1 include:spf.officernd.com include:spf.protection.outlook.com -all

📨 DMARC

Policy	Record (_dmarc.constructioncenter.dk)
p=quarantine	v=DMARC1; p=quarantine; rua=mailto:dmarcreports@constructioncenter.dk; ruf=mailto:dmarcreports@constructioncenter.dk

📬 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

🔗 TLSA / DANE

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

🔐 DNSSEC60ms

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

🏷️ SOA20ms

Field	Value
Serial	2026012802
Primary NS (MNAME)	ns1.simply.com
Responsible (RNAME)	hostmaster@simply.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	3600s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

44ms

A

43ms

MX

39ms

AAAA

43ms

TXT

160ms

CAA

45ms

HTTPS

38ms

TLSA

128ms

SOA

20ms

MTA-STS

41ms

DNSSEC

60ms

SRV

66ms

Total

827ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-06-29 12:11:47	827ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-28 11:09:29	855ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-26 09:56:18	792ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-23 21:09:12	912ms	0 NS 0 A 0 MX	❓ Unknown	View
2026-06-22 13:21:00	1434ms	4 NS 1 A 1 MX	🔒 Secure	View
2026-06-16 22:05:23	611ms	4 NS 1 A 1 MX	🔒 Secure	View