gleipner.dk is a .dk domain served by 2 nameservers (carlos.ns.cloudflare.com, walk.ns.cloudflare.com). It first appeared in the .dk zone on 26 August 2026. Its website address 104.21.9.248 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.protonmail.ch, mailsec.protonmail.ch. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.9.248 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.189.214 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.189.214 |
| 🔶 Autoconfig | 172.67.189.214 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3033::ac43:bdd6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::6815:9f8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.9.248,172.67.189.214 ech=AEX+DQBBfAAgACBhkKfZrq8VdKvHn+TBYTJAvQR6/B0psmqgGa/fFeAqawAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3033::ac43:bdd6,2606:4700:3035::6815:9f8 |
| TXT Record |
|---|
| protonmail-verification=44ab03fc040b9ef7181bceba327c943b5a5eaf02 |
| v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (gleipner.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch mx ~all |
| Policy | Record (_dmarc.gleipner.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | 104.21.9.248 172.67.189.214 2606:4700:3033::ac43:bdd6 2606:4700:3035::6815:9f8 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network gleipner.dk: 104.21.9.248 172.67.189.214 2606:4700:3033::ac43:bdd6 2606:4700:3035::6815:9f8 (AS13335) www.gleipner.dk: 104.21.9.248 172.67.189.214 2606:4700:3033::ac43:bdd6 2606:4700:3035::6815:9f8 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 3/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.gleipner.dk | JL9TBtOWZcSVBDUONw5oL7qEBkD8qweS7XnQ6TdtttA |
| TXT | _acme-challenge.gleipner.dk | covKrsVKDTPUbPcRois40zOGYrc1wfBrZMvaNXpZE3g |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| 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 | 2413134999 |
| Primary NS (MNAME) | carlos.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-27 00:20:40 | 726ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-23 21:23:08 | 878ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-20 19:02:16 | 1654ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-12 02:20:43 | 1282ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-28 04:13:53 | 1086ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-27 09:06:59 shown | 1717ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 08:37:28 | 2012ms | 2 NS 2 A 2 MX | 🔓 Insecure |