byens-byg.dk DNS records

🖥️ Nameservers2 records 61ms

Nameserver	IP addresses	PTR	ASN / ISP
meiling.ns.cloudflare.com	108.162.194.254 162.159.38.254 172.64.34.254 2606:4700:50::a29f:26fe 2803:f800:50::6ca2:c2fe 2a06:98c1:50::ac40:22fe	meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com meiling.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
sullivan.ns.cloudflare.com	108.162.195.161 162.159.44.161 172.64.35.161 2606:4700:58::a29f:2ca1 2803:f800:50::6ca2:c3a1 2a06:98c1:50::ac40:23a1	sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com sullivan.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.

🌍 A Records2 records 62ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.96.61	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.173.155	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records1 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	byensbyg-dk01c.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::8 2a01:111:f403:ca04::d 2a01:111:f403:ca09::5 52.101.68.5 52.101.73.26 52.101.73.28 52.101.73.4	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db5pr02cu00100.inbound.protection.outlook.com mail-db6pr03cu00105.inbound.protection.outlook.com mail-am1pr04cu00105.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as9pr05cu01302.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 40.104.116.56
🔶 Autoconfig	77.111.240.140

🔷 AAAA Records (IPv6)2 records 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3033::ac43:ad9b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3037::6815:603d	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=104.21.96.61,172.67.173.155 ech=AEX+DQBBMAAgACDwjkqU0ajz0dg9xKPeuuoiYveknvO1e4UMUsz2j6USXQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:ad9b,2606:4700:3037::6815:603d

📝 TXT Records2 records 226ms

TXT Record
MS=ms46981915
v=spf1 include:sendgrid.net include:spf.protection.outlook.com include:_custspf.one.com -all

✉️ SPF

Policy	Record (byens-byg.dk)
-all (hard fail)	v=spf1 include:sendgrid.net include:spf.protection.outlook.com include:_custspf.one.com -all

📨 DMARC

Policy	Record (_dmarc.byens-byg.dk)
p=reject	v=DMARC1; p=reject;rua=mailto:tjmpklk7@ag.eu.dmarcian.com; ruf=mailto:tjmpklk7@fr.eu.dmarcian.com

📬 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

🔏 ACME Challenge

Type	Name	Value
CNAME	_acme-challenge.byens-byg.dk	byens-byg.dk.acme-cust-transient.one.com

🔗 TLSA / DANE

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

🔐 DNSSEC91ms

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	2411629583
Primary NS (MNAME)	meiling.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

61ms

A

62ms

MX

40ms

AAAA

52ms

TXT

226ms

CAA

51ms

HTTPS

59ms

TLSA

833ms

SOA

0ms

MTA-STS

77ms

DNSSEC

91ms

SRV

110ms

Total

2159ms

🕐 Scan History

Scanned At	Duration	Records	DNSSEC
2026-08-09 10:27:25	2159ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-07-16 22:05:23	9082ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-26 18:51:44	1498ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-24 20:52:58	1127ms	2 NS 2 A 1 MX	🔓 Insecure	View
2026-06-16 18:05:37	1418ms	2 NS 2 A 1 MX	🔓 Insecure	View