jacobdev.dk is a .dk domain served by 2 nameservers (bjorn.ns.cloudflare.com, brynne.ns.cloudflare.com). It was registered on 13 May 2024 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.70.200 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx01.mail.icloud.com, mx02.mail.icloud.com. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 104.21.70.200 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.138.240 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.70.200 |
| 🔶 Autoconfig | 172.67.138.240 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:8af0 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3031::6815:46c8 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.70.200,172.67.138.240 ech=AEX+DQBBggAgACBxJ+1JDKsk+WTOCm3AE8mD8+OOsf4hmwak1qOXiVxLdQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:8af0,2606:4700:3031::6815:46c8 |
| TXT Record |
|---|
| apple-domain=rkS0PZ8fgxh0E6tB |
| google-site-verification=9FhsAGN9dl3RanxXXjgMrW8C9BdbJORrkqqYkBwxM1k |
| v=spf1 include:icloud.com ~all |
| Policy | Record (jacobdev.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:icloud.com ~all |
| Policy | Record (_dmarc.jacobdev.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:d14a00e6eaef4a0482ddc2474cc57732@dmarc-reports.cloudflare.net |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | comodoca.com |
| 0 | issue | digicert.com; cansignhttpexchanges=yes |
| 0 | issue | letsencrypt.org |
| 0 | issue | pki.goog; cansignhttpexchanges=yes |
| 0 | issue | ssl.com |
| 0 | issuewild | comodoca.com |
| 0 | issuewild | digicert.com; cansignhttpexchanges=yes |
| 0 | issuewild | letsencrypt.org |
| 0 | issuewild | pki.goog; cansignhttpexchanges=yes |
| 0 | issuewild | ssl.com |
| www | 104.21.70.200 172.67.138.240 2606:4700:3030::ac43:8af0 2606:4700:3031::6815:46c8 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network jacobdev.dk: 104.21.70.200 172.67.138.240 2606:4700:3030::ac43:8af0 2606:4700:3031::6815:46c8 (AS13335) www.jacobdev.dk: 104.21.70.200 172.67.138.240 2606:4700:3030::ac43:8af0 2606:4700:3031::6815:46c8 (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
DNS lookups: 5/10 · policy: ~all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2410344873 |
| Primary NS (MNAME) | bjorn.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 | 2024-05-13 |
| Expires | 2027-05-12 (204d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-17 18:02:27 | 1652ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-10-09 04:27:38 | 812ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-10-08 06:06:25 | 683ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-10-04 11:14:32 | 763ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-30 11:04:20 | 805ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-30 06:24:37 | 819ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-27 07:58:56 | 3155ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-20 01:13:50 | 1432ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-12 23:26:52 | 1782ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-11 10:38:01 | 1692ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-09-10 02:45:32 | 787ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-26 08:59:38 | 3089ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-18 23:15:42 | 9974ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-08-17 17:19:27 | 1615ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-25 03:25:58 shown | 2858ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-20 12:22:51 | 3377ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-16 18:59:45 | 1389ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-07-04 22:14:47 | 3913ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-30 18:49:32 | 902ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-25 10:13:28 | 1432ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-21 12:26:03 | 3709ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-20 16:30:28 | 2797ms | 2 NS 2 A 2 MX | 🔒 Secure |
| 2026-06-17 15:30:20 | 1569ms | 2 NS 2 A 2 MX | 🔒 Secure |