4300cool.dk

📜 Historical scan 2026-08-24 14:22:36 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

4300cool.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 7 December 2011 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 172.104.229.205 is hosted by Akamai Connected Cloud (AS63949) in Germany. Mail is handled by 4300cool-dk.mail.protection.outlook.com. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. 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 79ms

Nameserver	IP addresses	PTR	ASN / ISP
ns01.one.com	195.206.121.10 2001:67c:28cc::10	ns01.one.com ns01.one.com	AS197495 One.com A/S AS197495 One.com A/S
ns02.one.com	185.10.11.10 2001:67c:3c0::10	ns02.one.com ns02.one.com	AS51468 One.com A/S AS51468 One.com A/S

🌍 A Records#

1 records 53ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
172.104.229.205	900s	172-104-229-205.ip.linodeusercontent.com	AS63949	Akamai Connected Cloud	172.104.224.0/19	🇩🇪 Germany	Frankfurt am Main

📧 MX Records#

1 records 70ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	43200s	4300cool-dk.mail.protection.outlook.com	2a01:111:f403:ca04::1 2a01:111:f403:ca04::f 2a01:111:f403:ca09::3 2a01:111:f403:ca09::b 52.101.68.15 52.101.73.16 52.101.73.28 52.101.73.6	mail-db7pr03cu00401.inbound.protection.outlook.com mail-db7pr03cu00507.inbound.protection.outlook.com mail-am6pr04cu00303.inbound.protection.outlook.com mail-am7pr05cu00103.inbound.protection.outlook.com mail-db6pr03cu00107.inbound.protection.outlook.com mail-as2pr05cu00100.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am6pr04cu00306.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	4300cool.dk → 172.104.229.205

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 251ms

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

✉️ SPF#

Policy	Record (4300cool.dk)
-all (hard fail)	v=spf1 include:spf.protection.outlook.com include:mailgun.org -all

📨 DMARC#

Policy	Record (_dmarc.4300cool.dk)
p=quarantine	v=DMARC1; p=quarantine; pct=100;

📬 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 2026-10-14 07:56:46

www CNAME	4300cool.dk (all on 4300cool.dk) → 172.104.229.205 (AS63949)
www vs bare domain	Same network 4300cool.dk: 172.104.229.205 (AS63949) www.4300cool.dk: 172.104.229.205 (AS63949)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 6/10 · policy: -all

No problems found

🔏 ACME Challenge#

Type	Name	Value
CNAME	_acme-challenge.4300cool.dk	4300cool.dk

🔗 TLSA / DANE#

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

🔐 DNSSEC#

186ms

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

🏷️ SOA#

0ms

Field	Value
Serial	2026032401
Primary NS (MNAME)	ns01.one.com
Responsible (RNAME)	hostmaster@one.com
Refresh	14400s
Retry	3600s
Expire	1209600s
Minimum (neg-cache TTL)	600s

📋 Registration#

WHOIS fetched 2026-10-08 14:08:06

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2011-12-07
Expires	2026-12-31 (75d)

📋 WHOIS#

⏱️ Lookup Timing#

79ms

53ms

70ms

AAAA

82ms

TXT

251ms

CAA

80ms

HTTPS

96ms

TLSA

182ms

SOA

0ms

MTA-STS

126ms

DNSSEC

186ms

SRV

98ms

Total

3359ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-14 07:56:46	1497ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-20 18:59:20	1191ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-24 14:22:36 shown	3359ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-16 12:59:27	1976ms	2 NS 1 A 1 MX	🔒 Secure