rack24x7.dk

📜 Historical scan 2026-06-17 21:09:26 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rack24x7.dk is a .dk domain served by 2 nameservers (henry.ns.cloudflare.com, robin.ns.cloudflare.com). It was registered on 14 June 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.29.150 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by rack24x7-dk.mail.protection.outlook.com. The zone is not DNSSEC-signed, 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 48ms

Nameserver	IP addresses	PTR	ASN / ISP
henry.ns.cloudflare.com	108.162.193.176 172.64.33.176 173.245.59.176 2606:4700:58::adf5:3bb0 2803:f800:50::6ca2:c1b0 2a06:98c1:50::ac40:21b0	henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com henry.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
robin.ns.cloudflare.com	108.162.192.218 172.64.32.218 173.245.58.218 2606:4700:50::adf5:3ada 2803:f800:50::6ca2:c0da 2a06:98c1:50::ac40:20da	robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.ns.cloudflare.com robin.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 59ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.150	—	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.104	—	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 56ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	—	rack24x7-dk.mail.protection.outlook.com	2a01:111:f403:ca04::2 2a01:111:f403:ca09::4 2a01:111:f403:ca09::8 2a01:111:f403:ca09::c 52.101.68.39 52.101.73.15 52.101.73.22 52.101.73.30	mail-du2pr03cu00102.inbound.protection.outlook.com mail-am0pr04cu00504.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-db7pr03cu00607.inbound.protection.outlook.com mail-am9pr04cu00107.inbound.protection.outlook.com mail-am7pr05cu00106.inbound.protection.outlook.com mail-am7pr05cu00306.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 → 52.98.149.136

🔷 AAAA Records (IPv6)#

2 records 60ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2a06:98c1:3120::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—
2a06:98c1:3121::1	—	—	AS13335	Cloudflare, Inc.	2a06:98c1:3120:0:0:0:0:0/46	—	—

🔐 HTTPS Records#

1 records 38ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.150,172.67.149.104 ech=AEX+DQBB/QAgACAXB3WSVMJCEvoNZQHmoN9vn+IfvWP22NyOkRp/+YwJXAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:1d96,2606:4700:3035::ac43:9568

🔌 SRV Records#

1 records 121ms

Service	Priority	Weight	Port	Target
_sipfederationtls._tcp	0	100	5061	sipfed.online.lync.com

📝 TXT Records#

2 records 219ms

TXT Record
MS=ms46390309
v=spf1 include:spf.protection.outlook.com -all

✉️ SPF#

Policy	Record (rack24x7.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com -all

📨 DMARC#

Policy	Record (_dmarc.rack24x7.dk)
p=none (monitor only)	v=DMARC1; p=none; pct=100; rua=mailto:re+k1dadydjdfy@dmarc.postmarkapp.com; sp=none; aspf=r;

📬 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 2026-10-08 06:55:10

www	104.21.29.150 172.67.149.104 2606:4700:3035::6815:1d96 2606:4700:3035::ac43:9568 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rack24x7.dk: 104.21.29.150 172.67.149.104 2606:4700:3035::6815:1d96 2606:4700:3035::ac43:9568 (AS13335) www.rack24x7.dk: 104.21.29.150 172.67.149.104 2606:4700:3035::6815:1d96 2606:4700:3035::ac43:9568 (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#

70ms

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

🏷️ SOA#

39ms

Field	Value
Serial	2406224699
Primary NS (MNAME)	henry.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-20 14:40:36

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2018-06-14
Expires	2027-06-30 (252d)

🔗 Same registrant#

0 domains

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).

No other domain with this registrant in our WHOIS data yet

📋 WHOIS#

⏱️ Lookup Timing#

48ms

59ms

56ms

AAAA

60ms

TXT

219ms

CAA

54ms

HTTPS

38ms

TLSA

494ms

SOA

39ms

MTA-STS

54ms

DNSSEC

70ms

SRV

121ms

Total

1552ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-03 03:56:10	873ms	2 NS 2 A 1 MX	🔓 Insecure
2026-10-01 03:52:20	850ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-30 02:42:45	1569ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-24 12:50:37	963ms	2 NS 2 A 1 MX	🔓 Insecure
2026-09-09 02:49:36	2241ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-27 15:39:42	1409ms	2 NS 2 A 1 MX	🔓 Insecure
2026-08-06 00:19:39	2722ms	2 NS 2 A 1 MX	🔓 Insecure
2026-07-11 07:32:30	9602ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-22 17:08:05	1530ms	2 NS 2 A 1 MX	🔓 Insecure
2026-06-21 14:39:09	1004ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-17 21:09:26 shown	1552ms	2 NS 2 A 1 MX	🔓 Insecure