host123.dk

📜 Historical scan 2026-07-21 00:08:27 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

host123.dk is a .dk domain served by 2 nameservers (alberto.ns.cloudflare.com, laylah.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.4.177 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by host123-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a 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 56ms

Nameserver	IP addresses	PTR	ASN / ISP
alberto.ns.cloudflare.com	108.162.195.18 162.159.44.18 172.64.35.18 2606:4700:58::a29f:2c12 2803:f800:50::6ca2:c312 2a06:98c1:50::ac40:2312	alberto.ns.cloudflare.com alberto.ns.cloudflare.com alberto.ns.cloudflare.com alberto.ns.cloudflare.com alberto.ns.cloudflare.com alberto.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
laylah.ns.cloudflare.com	108.162.194.230 162.159.38.230 172.64.34.230 2606:4700:50::a29f:26e6 2803:f800:50::6ca2:c2e6 2a06:98c1:50::ac40:22e6	laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.ns.cloudflare.com laylah.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 42ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.4.177	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.132.81	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 54ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
5	300s	host123-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca04::9 2a01:111:f403:ca09::2 2a01:111:f403:ca09::7 52.101.68.18 52.101.68.27 52.101.73.19 52.101.73.2	mail-db4pr02cu00307.inbound.protection.outlook.com mail-db7pr03cu00601.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-db4pr02cu00302.inbound.protection.outlook.com mail-db7pr03cu00503.inbound.protection.outlook.com mail-as8pr04cu00803.inbound.protection.outlook.com mail-as9pr07cu00302.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

🔷 AAAA Records (IPv6)#

2 records 53ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:8451	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3033::6815:4b1	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 51ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.4.177,172.67.132.81 ech=AEX+DQBBwwAgACAWFYl/3slsKUCp2ogwKf7noM3+U5CmBHt81A8Up8baDQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:8451,2606:4700:3033::6815:4b1

📝 TXT Records#

3 records 164ms

TXT Record
0ed1fe018a8a20139486c8480d8f04170c9d98ecc1
MS=ms62310072
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (host123.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.host123.dk)
p=reject	v=DMARC1; p=reject; rua=mailto:3c7f7c4597a742cfbb9f36945fe30da8@dmarc-reports.cloudflare.net,mailto:reports@dmarc.host123.dk; adkim=s; aspf=s;

📬 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 2026-10-09 09:48:04

www	104.21.4.177 172.67.132.81 2606:4700:3032::ac43:8451 2606:4700:3033::6815:4b1 (AS13335) (address records, no CNAME)
www vs bare domain	Same network host123.dk: 104.21.4.177 172.67.132.81 2606:4700:3032::ac43:8451 2606:4700:3033::6815:4b1 (AS13335) www.host123.dk: 104.21.4.177 172.67.132.81 2606:4700:3032::ac43:8451 2606:4700:3033::6815:4b1 (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

✍️ DKIM keys#

1 found

Selector	CNAME	Key
selector1	selector1-host123-dk._domainkey.nctas.onmicrosoft.com	RSA · ~2048 bit

DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.

🔎 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#

201ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2409985992
Primary NS (MNAME)	alberto.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

✗ No registration data yet — queued for a WHOIS lookup

📋 WHOIS#

⏱️ Lookup Timing#

56ms

42ms

54ms

AAAA

53ms

TXT

164ms

CAA

39ms

HTTPS

51ms

TLSA

1139ms

SOA

0ms

MTA-STS

57ms

DNSSEC

201ms

SRV

127ms

Total

2231ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-09 09:48:04	1702ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-30 16:21:13	1240ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-28 06:25:52	1831ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-26 05:44:40	1123ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-20 06:16:58	1997ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-11 01:37:56	2245ms	2 NS 2 A 1 MX	🔒 Secure
2026-09-07 15:03:25	2898ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-27 00:52:12	3042ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-19 07:09:56	1911ms	2 NS 2 A 1 MX	🔒 Secure
2026-08-11 18:54:05	17532ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-21 00:08:27 shown	2231ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-18 15:45:09	2050ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-12 13:15:01	1467ms	2 NS 2 A 1 MX	🔒 Secure
2026-07-01 20:04:46	2374ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-24 11:30:49	2122ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 18:30:46	762ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-20 02:35:10	981ms	2 NS 2 A 1 MX	🔒 Secure
2026-06-17 13:22:27	1062ms	2 NS 2 A 1 MX	🔒 Secure