rudolfo.dk

📜 Historical scan 2026-06-18 04:32:56 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rudolfo.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 12 February 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.103.129.170 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail.rudolfo.dk. The zone is DNSSEC-signed and validates, 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 113ms

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 113ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
5.103.129.170	—	5.103.129.170.static.fibianet.dk	AS44869	FIBIA P/S	5.103.0.0/16	🇩🇰 Denmark	Frederiksberg

📧 MX Records#

1 records 110ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
10	—	mail.rudolfo.dk	5.103.129.170	5.103.129.170.static.fibianet.dk	AS44869 FIBIA P/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	5.103.129.170
🔶 Autoconfig	5.103.129.170

🔷 AAAA Records (IPv6)#

✗ No AAAA records — IPv6 not configured

🔐 HTTPS Records#

✗ No HTTPS RR — no SVCB/HTTPS service binding

📝 TXT Records#

1 records 292ms

TXT Record
v=spf1 mx a ptr ip4:5.103.129.170 a:mail.sitekey.dk a:smtp.sitekey.dk include:sitekey.dk ?all

✉️ SPF#

Policy	Record (rudolfo.dk)
?all (neutral)	v=spf1 mx a ptr ip4:5.103.129.170 a:mail.sitekey.dk a:smtp.sitekey.dk include:sitekey.dk ?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 2026-10-07 17:53:09

www CNAME	rudolfo.dk (all on rudolfo.dk) → 5.103.129.170 (AS44869)
www vs bare domain	Same network rudolfo.dk: 5.103.129.170 (AS44869) www.rudolfo.dk: 5.103.129.170 (AS44869)
Wildcard	Yes: any name under the zone resolves
CDS / CDNSKEY	None 0 CDS, 0 CDNSKEY

🔎 SPF check#

zone-wide SPF report

DNS lookups: 9/10 · policy: ?all

warn "ptr" is slow, unreliable and discouraged (RFC 7208 §5.5)
warn "?all" is neutral: it gives receivers no guidance, much like having no SPF
warn 9 of the 10 allowed DNS lookups used: one more include can break SPF

🔗 TLSA / DANE#

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

🔐 DNSSEC#

241ms

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

🏷️ SOA#

95ms

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 2026-10-06 17:58:47

Field	Value
Registrar	Punktum dk A/S (direct)
Registered	2012-02-12
Expires	2027-02-28 (133d)

📋 WHOIS#

⏱️ Lookup Timing#

113ms

110ms

AAAA

113ms

TXT

292ms

CAA

93ms

HTTPS

106ms

TLSA

83ms

SOA

95ms

MTA-STS

48ms

DNSSEC

241ms

SRV

656ms

Total

1102ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-06 17:44:58	1359ms	2 NS 1 A 1 MX	🔒 Secure
2026-10-01 16:33:21	446ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-30 16:22:33	626ms	2 NS 1 A 1 MX	🔒 Secure
2026-09-21 00:36:52	665ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-26 17:58:58	688ms	2 NS 1 A 1 MX	🔒 Secure
2026-08-12 11:09:41	9311ms	2 NS 1 A 1 MX	🔒 Secure
2026-07-02 13:15:57	9503ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-27 10:58:27	568ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-26 18:52:27	571ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-25 11:30:09	586ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-20 05:00:45	788ms	2 NS 1 A 1 MX	🔒 Secure
2026-06-18 04:32:56 shown	1102ms	2 NS 1 A 1 MX	🔒 Secure