doi.dk is a .dk domain served by 2 nameservers (dave.ns.cloudflare.com, marge.ns.cloudflare.com). It was registered on 8 May 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.34.185 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.dknyt.dk. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.34.185 | 600s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.163.186 | 600s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | mail.dknyt.dk | 57.129.84.158 | flex29.flexnet.dk | AS16276 OVH SAS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:22b9 | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:a3ba | 600s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=188.114.96.1,188.114.97.1 ech=AEX+DQBBLAAgACDQvITey2Xc5a2pNV27963QnJAoAnsJv042o3sbkQTnIQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2a06:98c1:3120::1,2a06:98c1:3121::1 |
| TXT Record |
|---|
| google-site-verification=glz4BPiwsdP_mQuVvsTk2Aa-egpe_nhQrUnhxFa2Zdk |
| v=spf1 mx a ~all |
| Policy | Record (doi.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx a ~all |
| Policy | Record (_dmarc.doi.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; pct=1; rua=mailto:gktmeydf@ag.dmarcian.eu; |
| www | 104.21.34.185 172.67.163.186 2606:4700:3033::6815:22b9 2606:4700:3036::ac43:a3ba (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
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: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.dknyt.dk | DANE-EE · SPKI · SHA-256 | 226A8D5B2B5C9271BAC4893123143A55… |
| 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 | 2406890199 |
| Primary NS (MNAME) | dave.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 | 2018-05-08 |
| Expires | 2027-04-30 (194d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-14 17:51:10 | 742ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-24 02:03:50 | 1221ms | 2 NS 2 A 1 MX | 🔒 Secure |
| 2026-09-19 23:25:23 | 1903ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-03 04:37:48 | 1431ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-28 02:57:09 | 1733ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-07 13:18:55 | 1079ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-22 14:38:22 | 1905ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-21 14:35:45 | 9895ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-11 08:49:48 | 1237ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-06 17:41:04 | 4493ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 05:52:40 | 1839ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 19:14:24 shown | 1368ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 04:05:28 | 523ms | 2 NS 2 A 1 MX | 🔓 Insecure |