upstairs.dk is a .dk domain served by 2 nameservers (rosa.ns.cloudflare.com, uriah.ns.cloudflare.com). It was registered on 11 August 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.17.12 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.upstairs.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.17.12 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.218.132 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.upstairs.dk | 91.200.34.90 | v101.vh.net.pl | AS197155 Artnet Sp. z o.o. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.218.132 |
| 🔶 Autoconfig | 172.67.218.132 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:da84 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::6815:110c | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.17.12,172.67.218.132 ech=AEX+DQBB2QAgACAZ+Nu3g9VRCA5DX17BmRnOjdFrwaKT7df0bi51B1DWYwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:da84,2606:4700:3032::6815:110c |
| TXT Record |
|---|
| v=spf1 include:spf.mailjet.com ?all |
| Policy | Record (upstairs.dk) |
|---|---|
| ?all (neutral) | v=spf1 include:spf.mailjet.com ?all |
| www | 104.21.17.12 172.67.218.132 2606:4700:3031::ac43:da84 2606:4700:3032::6815:110c (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network upstairs.dk: 104.21.17.12 172.67.218.132 2606:4700:3031::ac43:da84 2606:4700:3032::6815:110c (AS13335) www.upstairs.dk: 104.21.17.12 172.67.218.132 2606:4700:3031::ac43:da84 2606:4700:3032::6815:110c (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · 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 | 2414397424 |
| Primary NS (MNAME) | rosa.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-08-11 |
| Expires | 2027-08-31 (317d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-08 06:03:01 shown | 847ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-30 03:03:43 | 1235ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-17 20:55:21 | 714ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-13 16:05:14 | 989ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-31 20:42:43 | 756ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-30 11:38:12 | 985ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 15:07:13 | 1052ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 17:09:20 | 9696ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-14 22:43:06 | 1477ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-23 14:00:59 | 1130ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 20:36:50 | 10790ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-22 13:55:03 | 900ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-22 04:07:26 | 800ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 12:08:48 | 1244ms | 2 NS 2 A 1 MX | 🔓 Insecure |