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 our latest scan: nameservers, A/AAAA, MX, TXT, SPF, DMARC, CAA, TLSA/DANE, MTA-STS, SRV and more.
| 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 | — | — |
| 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 |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscover-mf.onlinemail.io → 185.21.40.62 |
| 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 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.26.153,172.67.136.138 ech=AEX+DQBB/AAgACBlEbUec0Be5xrHLrff/e0hXYdmpP0f2PyYCL8dClRSKgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:888a,2606:4700:3035::6815:1a99 |
| TXT Record |
|---|
| v=spf1 a include:spf.curanet.dk ~all |
| v=spf1 a mx ~all |
| Policy | Record (rudolftivoli.dk) |
|---|---|
| ~all (soft fail) | v=spf1 a include:spf.curanet.dk ~all |
| ~all (soft fail) | v=spf1 a mx ~all |
| 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 |
DNS lookups: 4/10 · policy: ~all
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2417103304 |
| Primary NS (MNAME) | barbara.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2025-09-25 |
| Expires | 2027-09-24 (341d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 06:23:19 shown | 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 | 919ms | 2 NS 2 A 3 MX | 🔓 Insecure |