jterp.dk is a .dk domain served by 2 nameservers (bonnie.ns.cloudflare.com, kurt.ns.cloudflare.com). It was registered on 5 February 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.38.234 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 |
|---|---|---|---|---|---|---|---|
| 104.21.38.234 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.140.198 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:26ea | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000::/42 | — | — |
| 2606:4700:3032::ac43:8cc6 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000::/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.38.234,172.67.140.198 ech=AEX+DQBBYgAgACA/CvdbwFkpl1EHcu79jgYyMcQHahcSMOKsV+F8FbmnIgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:26ea,2606:4700:3032::ac43:8cc6 |
| TXT Record |
|---|
| protonmail-verification=51396226e0c058949ec64eb2e64375de02c1c4a9 |
| v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (jterp.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch ~all |
| Policy | Record (_dmarc.jterp.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| www | 104.21.38.234 172.67.140.198 2606:4700:3030::6815:26ea 2606:4700:3032::ac43:8cc6 (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 | Delete signal: the zone asks the registry to remove its DS (go insecure) 1 CDS, 1 CDNSKEY |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| SMTP _25._tcp.mail.protonmail.ch | DANE-EE · SPKI · SHA-256 | 76BB66711DA416433CA890A5B2E5A053… |
| 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 | ✓ Found |
| Flags | unsigned answer |
| Key type | Algorithm | Public key |
|---|---|---|
| KSK | ECDSA P-256/SHA-256 | mdsswUyr3DPW132mOi8V9xESWE8jTo0dxCjjnopK… |
| ZSK | ECDSA P-256/SHA-256 | oJMRESz5E4gYzS/q6XDrvU1qMPYIjCWzJaOau8XN… |
| Field | Value |
|---|---|
| Serial | 2414737905 |
| Primary NS (MNAME) | bonnie.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 | 2023-02-05 |
| Expires | 2027-02-04 (106d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 15:02:21 | 1172ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-29 12:46:09 | 1191ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-28 12:41:36 shown | 2420ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-28 02:56:27 | 986ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-14 15:50:31 | 1529ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-11 18:16:11 | 1189ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-31 02:40:13 | 663ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-28 08:26:54 | 1063ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-24 05:38:05 | 4687ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-23 05:29:33 | 6725ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-20 04:39:40 | 10491ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-13 15:01:27 | 2455ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-27 07:19:17 | 10986ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-15 02:29:21 | 1427ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-03 20:42:24 | 1590ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-01 22:18:45 | 1176ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-25 12:08:25 | 1499ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-19 16:39:31 | 763ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-18 07:02:20 | 1262ms | 2 NS 2 A 2 MX | 🔓 Insecure |