ulti.dk is a .dk domain served by 2 nameservers (kia.ns.cloudflare.com, terin.ns.cloudflare.com). It was registered on 12 October 2017 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.87.205 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route3.mx.cloudflare.net, route1.mx.cloudflare.net and 1 more. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.87.205 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.145.244 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:91f4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:57cd | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.87.205,172.67.145.244 ech=AEX+DQBB+AAgACBa2DHwV2dbwchWwDkHeHJTqq/o0Tw+Gz1KaJyNxaAyJQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:91f4,2606:4700:3037::6815:57cd |
| TXT Record |
|---|
| fed56a613a5ba06d23437793e6cc6808976a674d |
| v=spf1 -all |
| v=spf1 include:_spf.mx.cloudflare.net -all |
| Policy | Record (ulti.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| -all (hard fail) | v=spf1 include:_spf.mx.cloudflare.net -all |
| Policy | Record (_dmarc.ulti.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=s; aspf=s; |
| www | 104.21.87.205 172.67.145.244 2606:4700:3034::ac43:91f4 2606:4700:3037::6815:57cd (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | Revoked (empty key) |
| dkim | — | Revoked (empty key) |
| k1 | — | Revoked (empty key) |
| — | Revoked (empty key) | |
| s1 | — | Revoked (empty key) |
| s2 | — | Revoked (empty key) |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 0/10 · policy: -all
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| 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 | 2417421986 |
| Primary NS (MNAME) | kia.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 | 2017-10-12 |
| Expires | 2027-10-31 (378d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| hackere.dk | Punktum dk A/S (direct) |
| hostboy.dk | Punktum dk A/S (direct) |
| marktopper.dk | Punktum dk A/S (direct) |
| subjekt.dk | Domeneshop AS |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 05:01:11 shown | 3291ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-14 01:40:10 | 1229ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-08 11:48:24 | 1213ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-30 02:03:51 | 1092ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-27 21:21:08 | 1119ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-24 20:16:50 | 856ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-02 10:54:43 | 1542ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-31 19:58:16 | 947ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-28 00:06:10 | 2928ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-16 07:05:39 | 5784ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-15 00:52:59 | 2086ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-09 13:53:19 | 3637ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-26 08:14:00 | 1035ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 18:51:35 | 3393ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-24 06:22:32 | 995ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 16:19:45 | 1742ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-18 03:50:26 | 1452ms | 2 NS 2 A 3 MX | 🔓 Insecure |