rack24x7.dk

📜 Historical scan 2026-08-27 15:39:42 · ← 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 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 53ms

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 39ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.29.150	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.149.104	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

1 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
1	300s	rack24x7-dk.mail.protection.outlook.com	2a01:111:f403:ca09::1 2a01:111:f403:ca09::2 2a01:111:f403:ca09::d 2a01:111:f403:ca48::8 52.101.103.137 52.101.103.140 52.101.68.5 52.101.73.22	mail-as9pr07cu00301.inbound.protection.outlook.com mail-am0pr83cu00402.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-miypr02cu00100.inbound.protection.outlook.com mail-miypr02cu00101.inbound.protection.outlook.com mail-miypr02cu00204.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00106.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 52ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3035::6815:1d96	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::ac43:9568	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 71ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.29.150,172.67.149.104 ech=AEX+DQBB7gAgACDjb97KP6YVmnJEmItPXJ+TBePeT87Vjd9IS+KnQbe6dAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:1d96,2606:4700:3035::ac43:9568

🔌 SRV Records#

1 records 96ms

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

📝 TXT Records#

2 records 218ms

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#

90ms

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	2411326168
Primary NS (MNAME)	henry.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#

53ms

39ms

44ms

AAAA

52ms

TXT

218ms

CAA

64ms

HTTPS

71ms

TLSA

667ms

SOA

0ms

MTA-STS

62ms

DNSSEC

90ms

SRV

96ms

Total

1409ms

🕐 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 shown	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	1552ms	2 NS 2 A 1 MX	🔓 Insecure