startupcity.dk is a .dk domain served by 2 nameservers (damien.ns.cloudflare.com, kim.ns.cloudflare.com). It was registered on 1 November 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.38.101 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx.simply.com. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.38.101 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.221.249 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mx.simply.com | 94.231.106.20 | mx.simply.com | AS48854 team.blue Denmark A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 93.191.156.154 |
| 🔶 Autoconfig | 104.21.38.101 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::ac43:ddf9 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:2665 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.38.101,172.67.221.249 ech=AEX+DQBBHgAgACB8tMTlV4ijZjybJw+ZNDLQg81BvBV1YK6WTffm7wB0EgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::ac43:ddf9,2606:4700:3037::6815:2665 |
| TXT Record |
|---|
| v=spf1 include:spf.simply.com ~all |
| Policy | Record (startupcity.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.simply.com ~all |
| www | 104.21.38.101 172.67.221.249 2606:4700:3032::ac43:ddf9 2606:4700:3037::6815:2665 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network startupcity.dk: 104.21.38.101 172.67.221.249 2606:4700:3032::ac43:ddf9 2606:4700:3037::6815:2665 (AS13335) www.startupcity.dk: 104.21.38.101 172.67.221.249 2606:4700:3032::ac43:ddf9 2606:4700:3037::6815:2665 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 1/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | A9D603AF4D7ED6B9246B4B68500CD6F2… |
| SMTP _25._tcp.mx.simply.com | DANE-EE · SPKI · SHA-256 | 97A3BA009F39C761BFFB6574340E8138… |
| 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 | 2412596032 |
| Primary NS (MNAME) | damien.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 | 2018-11-01 |
| Expires | 2026-11-30 (41d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 22:46:41 | 1605ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-09 12:03:32 | 952ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-26 06:22:48 | 665ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-25 05:56:18 | 703ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-18 12:08:52 | 1157ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-19 16:23:17 shown | 9613ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-28 00:36:10 | 1696ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 06:49:20 | 887ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-23 06:29:16 | 957ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 22:38:21 | 614ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 06:18:25 | 1102ms | 2 NS 2 A 1 MX | 🔓 Insecure |