rpt.dk

📜 Historical scan 2026-06-24 08:26:34 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rpt.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 26 March 2003 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.21.40.251 is hosted by team.blue Denmark A/S (AS48854) in Denmark. Mail is handled by rpt-dk.mail.protection.outlook.com. The zone is DNSSEC-signed but currently fails validation, has no 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 57ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
185.21.40.251	3600s	linux8.curanet.dk	AS48854	team.blue Denmark A/S	185.21.40.0/22	🇩🇰 Denmark	—

📧 MX Records#

1 records 74ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	3600s	rpt-dk.mail.protection.outlook.com	2a01:111:f403:ca04::7 2a01:111:f403:ca09::c 2a01:111:f403:ca09::d 2a01:111:f403:ca09::e 52.101.68.36 52.101.68.5 52.101.73.28 52.101.73.4	mail-db4pr02cu00307.inbound.protection.outlook.com mail-as8pr05cu00304.inbound.protection.outlook.com mail-as9pr05cu01305.inbound.protection.outlook.com mail-am7pr05cu00206.inbound.protection.outlook.com mail-db5pr02cu00104.inbound.protection.outlook.com mail-du2pr03cu00105.inbound.protection.outlook.com mail-am7pr05cu00204.inbound.protection.outlook.com mail-am0pr83cu00404.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 → 52.98.152.200

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

2 records 254ms

TXT Record
MS=ms72612915
v=spf1 mx a ptr include:spf.protection.outlook.com ip4:193.8.36.0/22 ip4:185.21.40.251 -all

✉️ SPF#

Policy	Record (rpt.dk)
-all (hard fail)	v=spf1 mx a ptr include:spf.protection.outlook.com ip4:193.8.36.0/22 ip4:185.21.40.251 -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 2026-10-10 14:08:25

www	46.30.211.38 (AS51468) (address records, no CNAME)
www vs bare domain	Different networks rpt.dk: 185.21.40.251 (AS48854) www.rpt.dk: 46.30.211.38 (AS51468) (all like this)
Wildcard	No
Denial of existence	NSEC3 · 0 iterations · no salt RFC 9276 ✓
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: -all

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

96ms

Check	Result
Validation Status	⚠️ Bogus
AD Flag (resolver validates)	✗ Not set
DS Record	✓ Found
DNSKEY Record	✓ Found
Flags	broken trust chain resolving 'rpt.dk/DS/IN': 127.0.0.1#53

🏷️ SOA#

80ms

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 2026-10-05 22:34:41

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2003-03-26
Expires	2028-03-31 (531d)

📋 WHOIS#

⏱️ Lookup Timing#

57ms

37ms

74ms

AAAA

99ms

TXT

254ms

CAA

80ms

HTTPS

82ms

TLSA

540ms

SOA

80ms

MTA-STS

39ms

DNSSEC

96ms

SRV

155ms

Total

1174ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-09-26 22:37:49	1152ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-22 19:25:05	1496ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-09 16:01:30	1200ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-04 17:34:26	8001ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-24 08:26:34 shown	1174ms	2 NS 1 A 1 MX	⚠️ Bogus
2026-06-21 15:54:46	1234ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-21 14:05:20	975ms	0 NS 0 A 0 MX	❓ Unknown
2026-06-18 04:50:32	1352ms	2 NS 1 A 1 MX	🔒 Secure