nchbyg.dk

📜 Historical scan 2026-08-25 01:23:17 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

nchbyg.dk is a .dk domain served by 2 nameservers (koa.ns.cloudflare.com, ryleigh.ns.cloudflare.com). It was registered on 16 February 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.91.123 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by nchbyg-dk.mail.protection.outlook.com. 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 76ms

Nameserver	IP addresses	PTR	ASN / ISP
koa.ns.cloudflare.com	108.162.195.242 162.159.44.242 172.64.35.242 2606:4700:58::a29f:2cf2 2803:f800:50::6ca2:c3f2 2a06:98c1:50::ac40:23f2	koa.ns.cloudflare.com koa.ns.cloudflare.com koa.ns.cloudflare.com koa.ns.cloudflare.com koa.ns.cloudflare.com koa.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
ryleigh.ns.cloudflare.com	108.162.194.198 162.159.38.198 172.64.34.198 2606:4700:50::a29f:26c6 2803:f800:50::6ca2:c2c6 2a06:98c1:50::ac40:22c6	ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.ns.cloudflare.com ryleigh.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 133ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.91.123	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.218.102	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 73ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
32767	300s	nchbyg-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09::4 2a01:111:f403:ca09::d 2a01:111:f403:ca48::8 52.101.103.140 52.101.103.143 52.101.68.5 52.101.73.26	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-miypr03cu00107.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-as9pr05cu01302.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	104.21.91.123

🔷 AAAA Records (IPv6)#

2 records 69ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:5b7b	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:da66	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 90ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.91.123,172.67.218.102 ech=AEX+DQBBTQAgACAZi2hxSS5C19GWDC7NUQZt8DyqytVxPUesCivtUEJsGgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:5b7b,2606:4700:3035::ac43:da66

📝 TXT Records#

1 records 350ms

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

✉️ SPF#

Policy	Record (nchbyg.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -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 2026-10-21 10:06:24

www	104.21.91.123 172.67.218.102 2606:4700:3035::6815:5b7b 2606:4700:3035::ac43:da66 (AS13335) (address records, no CNAME)
www vs bare domain	Same network nchbyg.dk: 104.21.91.123 172.67.218.102 2606:4700:3035::6815:5b7b 2606:4700:3035::ac43:da66 (AS13335) www.nchbyg.dk: 104.21.91.123 172.67.218.102 2606:4700:3035::6815:5b7b 2606:4700:3035::ac43:da66 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 1/10 · policy: -all

No problems found

🔗 TLSA / DANE#

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

🔐 DNSSEC#

294ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2413098878
Primary NS (MNAME)	koa.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-21 08:38:21

Field	Value
Registrar	Simply.com A/S
Registered	2026-02-16
Expires	2027-02-15 (114d)

🔗 Same registrant#

1 domain

Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).

Domain	Registrar
nch-byg.dk	Simply.com A/S

📋 WHOIS#

⏱️ Lookup Timing#

76ms

133ms

73ms

AAAA

69ms

TXT

350ms

CAA

66ms

HTTPS

90ms

TLSA

230ms

SOA

0ms

MTA-STS

136ms

DNSSEC

294ms

SRV

164ms

Total

1909ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-27 02:29:58	829ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-20 18:55:54	4826ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-18 07:31:54	2332ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-26 18:38:10	1210ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-25 01:23:17 shown	1909ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-21 07:01:55	11136ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-27 20:54:38	1334ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-23 13:44:12	1155ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 18:19:35	3830ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 03:15:30	921ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 06:13:47	1278ms	2 NS 2 A 1 MX	🔓 Insecure