rudolftivoli.dk

📜 Historical scan 2026-09-24 20:59:00 · ← 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 44ms

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 37ms

IP	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
104.21.26.153	300s	—	AS13335	Cloudflare, Inc.	104.21.0.0/17	—	—
172.67.136.138	300s	—	AS13335	Cloudflare, Inc.	172.67.128.0/17	—	—

📧 MX Records#

3 records 44ms

Priority	TTL	Mail Server	IP addresses	PTR	ASN
0	300s	mail.rudolftivoli.dk	—	—	—
10	300s	mx1.onlinemail.io	185.21.42.12	mx1.onlinemail.io	AS48854 team.blue Denmark A/S
20	300s	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 39ms

IPv6 Address	TTL	PTR	ASN	ISP / Org	CIDR	Country	City
2606:4700:3032::ac43:888a	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—
2606:4700:3035::6815:1a99	300s	—	AS13335	Cloudflare, Inc.	2606:4700:3000:0:0:0:0:0/42	—	—

🔐 HTTPS Records#

1 records 37ms

Priority	Target	SvcParams
1 service	.	alpn="h3,h2" ipv4hint=104.21.26.153,172.67.136.138 ech=AEX+DQBB1gAgACCpAaf7d1k21wYqJxvQwPKZPCU/qMtrmwHPHBBFzpamFgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:888a,2606:4700:3035::6815:1a99

📝 TXT Records#

2 records 186ms

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#

74ms

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	2411970209
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#

44ms

37ms

44ms

AAAA

39ms

TXT

186ms

CAA

45ms

HTTPS

37ms

TLSA

88ms

SOA

0ms

MTA-STS

59ms

DNSSEC

74ms

SRV

57ms

Total

623ms

🕐 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 shown	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	919ms	2 NS 2 A 3 MX	🔓 Insecure