rudolftivoli.dk

📜 Historical scan 2026-06-18 06:08:58 · ← Latest scan

⬇ Zone File 📜 Timeline & History ⚡ Scan Now

rudolftivoli.dk is a .dk domain served by 2 nameservers (barbara.ns.cloudflare.com, justin.ns.cloudflare.com). It was registered on 25 September 2025 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.26.153 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.rudolftivoli.dk, mx1.onlinemail.io and 1 more. The zone is not DNSSEC-signed, has no 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 41ms

Nameserver	IP addresses	PTR	ASN / ISP
barbara.ns.cloudflare.com	108.162.192.248 172.64.32.248 173.245.58.248 2606:4700:50::adf5:3af8 2803:f800:50::6ca2:c0f8 2a06:98c1:50::ac40:20f8	barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com barbara.ns.cloudflare.com	AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc. AS13335 Cloudflare, Inc.
justin.ns.cloudflare.com	108.162.193.187 172.64.33.187 173.245.59.187 2606:4700:58::adf5:3bbb 2803:f800:50::6ca2:c1bb 2a06:98c1:50::ac40:21bb	justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.ns.cloudflare.com justin.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 41ms

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

📧 MX Records#

3 records 40ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	—	mail.rudolftivoli.dk	—	—	—
10	—	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	—	mx2.onlinemail.io	46.36.208.16	mx2.onlinemail.io	AS48854 team.blue Denmark A/S

📧 Autodiscover / Autoconfig#

Service	CNAME / IP
🔷 Autodiscover	autodiscover-mf.onlinemail.io → 185.21.40.62

🔷 AAAA Records (IPv6)#

2 records 40ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::6815:1a99	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3032::ac43:888a	—	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 35ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.26.153,172.67.136.138 ech=AEX+DQBBvgAgACBJni85WGHe97uPSIHOOQhUxAzLI4MySMevNjtzivHyJwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:1a99,2606:4700:3032::ac43:888a

📝 TXT Records#

2 records 190ms

TXT Record
v=spf1 a include:spf.curanet.dk ~all
v=spf1 a mx ~all

✉️ SPF#

⚠ Multiple SPF records — RFC 7208 §4.5 violation (receivers must treat this as permerror)

Policy	Record (rudolftivoli.dk)
~all (soft fail)	v=spf1 a include:spf.curanet.dk ~all
~all (soft fail)	v=spf1 a mx ~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 2026-10-11 06:23:19

www	104.21.26.153 172.67.136.138 2606:4700:3032::ac43:888a 2606:4700:3035::6815:1a99 (AS13335) (address records, no CNAME)
www vs bare domain	Same network rudolftivoli.dk: 104.21.26.153 172.67.136.138 2606:4700:3032::ac43:888a 2606:4700:3035::6815:1a99 (AS13335) www.rudolftivoli.dk: 104.21.26.153 172.67.136.138 2606:4700:3032::ac43:888a 2606:4700:3035::6815:1a99 (AS13335)
Wildcard	No

🔎 SPF check#

zone-wide SPF report

DNS lookups: 4/10 · policy: ~all

error 2 SPF records: receivers must treat that as a permanent error (RFC 7208 §4.5)

🔗 TLSA / DANE#

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

🔐 DNSSEC#

128ms

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

🏷️ SOA#

41ms

Field	Value
Serial	2405965420
Primary NS (MNAME)	barbara.ns.cloudflare.com
Responsible (RNAME)	dns@cloudflare.com
Refresh	10000s
Retry	2400s
Expire	604800s
Minimum (neg-cache TTL)	1800s

📋 Registration#

WHOIS fetched 2026-10-11 06:35:47

Field	Value
Registrar	Simply.com A/S
Registered	2025-09-25
Expires	2027-09-24 (333d)

📋 WHOIS#

⏱️ Lookup Timing#

41ms

40ms

AAAA

40ms

TXT

190ms

CAA

42ms

HTTPS

35ms

TLSA

76ms

SOA

41ms

MTA-STS

42ms

DNSSEC

128ms

SRV

194ms

Total

919ms

🕐 Scan History#

Scanned At	Duration	Records	DNSSEC
2026-10-11 06:23:19	572ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-30 14:00:40	918ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-29 18:16:30	491ms	2 NS 2 A 3 MX	🔓 Insecure
2026-09-24 20:59:00	623ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-26 14:20:25	638ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-12 00:42:35	2976ms	2 NS 2 A 3 MX	🔓 Insecure
2026-08-06 20:30:04	9173ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-20 08:47:04	770ms	2 NS 2 A 3 MX	🔓 Insecure
2026-06-18 06:08:58 shown	919ms	2 NS 2 A 3 MX	🔓 Insecure