byggeinformation.dk DNS records

🖥️ Nameservers2 records 53ms

Nameserver	IP addresses	PTR	ASN / ISP
coco.ns.cloudflare.com	108.162.192.104 172.64.32.104 173.245.58.104 2606:4700:50::adf5:3a68 2803:f800:50::6ca2:c068 2a06:98c1:50::ac40:2068	coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com coco.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
houston.ns.cloudflare.com	108.162.195.52 162.159.44.52 172.64.35.52 2606:4700:58::a29f:2c34 2803:f800:50::6ca2:c334 2a06:98c1:50::ac40:2334	houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com houston.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 66ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.8.77	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.156.239	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 43ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	byggeinformation-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::6 2a01:111:f403:ca09::a 2a01:111:f403:ca09::b 52.101.181.153 52.101.68.10 52.101.73.123 52.101.73.155	mail-db4pr02cu00307.inbound.protection.outlook.com mail-am4pr0401cu00106.inbound.protection.outlook.com mail-am7pr02cu00202.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-wa4pr04cu00101.inbound.protection.outlook.com mail-dbbpr03cu00102.inbound.protection.outlook.com mail-am6pr02cu00203.inbound.protection.outlook.com mail-am7pr02cu00203.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 → 40.104.116.24

🔷 AAAA Records (IPv6)2 records 51ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:84d	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3036::ac43:9cef	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records1 records 59ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.8.77,172.67.156.239 ech=AEX+DQBB7gAgACDjb97KP6YVmnJEmItPXJ+TBePeT87Vjd9IS+KnQbe6dAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:84d,2606:4700:3036::ac43:9cef

🔌 SRV Records1 records 93ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	100	1	5061	sipfed.online.lync.com

📝 TXT Records2 records 230ms

TXT Record
MS=ms90574068
v=spf1 include:spf.protection.outlook.com ip4:95.143.203.25 ip4:95.143.203.26 ip4:95.143.203.28 ip4:95.143.203.20 ip4:95.143.203.253 ~all

✉️ SPF

Policy	Record (byggeinformation.dk)
~all (soft fail)	v=spf1 include:spf.protection.outlook.com ip4:95.143.203.25 ip4:95.143.203.26 ip4:95.143.203.28 ip4:95.143.203.20 ip4:95.143.203.253 ~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

🔗 TLSA / DANE

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

🔐 DNSSEC89ms

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

🏷️ SOA0ms

Field	Value
Serial	2412020946
Primary NS (MNAME)	coco.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration

✗ No registration data — collected automatically when SOA serial changes

📋 WHOIS

⏱️ Lookup Timing

NS

53ms

A

66ms

MX

43ms

AAAA

51ms

TXT

230ms

CAA

57ms

HTTPS

59ms

TLSA

730ms

SOA

0ms

MTA-STS

80ms

DNSSEC

89ms

SRV

93ms

Total

1530ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-27 15:27:52	1530ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-13 15:35:30	1985ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-08-06 03:29:05	2250ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-20 05:28:43	1701ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 18:15:40	763ms	2 NS 2 A 1 MX	🔓 Insecure	View