mathiasjorgensen.dk is a .dk domain served by 2 nameservers (ns1.krystal.uk, ns2.krystal.uk). It was registered on 13 June 2018 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 76.76.21.21 is hosted by Amazon.com, Inc. (AS16509) in United States. Mail is handled by mx1.krystal.uk, mx2.krystal.uk. The zone is not DNSSEC-signed, has no DMARC policy and has no IPv6 address. 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.krystal.uk | 77.72.0.11 | ns1.krystal.uk | AS12488 Krystal Hosting Ltd |
| ns2.krystal.uk | 139.162.230.184 | ns2.krystal.uk | AS63949 Akamai Connected Cloud |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 76.76.21.21 | 14400s | — | AS16509 | Amazon.com, Inc. | 76.76.21.0/24 | 🇺🇸 United States | Walnut |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mx1.krystal.uk | 185.53.56.44 185.53.56.46 |
mx1.strikemail.co.uk mx1.strikemail.co.uk |
AS12488 Krystal Hosting Ltd AS12488 Krystal Hosting Ltd |
| 20 | 3600s | mx2.krystal.uk | 185.53.56.45 185.53.56.47 |
mx2.strikemail.co.uk mx2.strikemail.co.uk |
AS12488 Krystal Hosting Ltd AS12488 Krystal Hosting Ltd |
| TXT Record |
|---|
| google-site-verification=gbXmxqb2T-6TaAOxSKi2PJHNXPhA3Zoq1oJla-oXWaQ |
| v=spf1 ip4:185.194.90.5 include:relay.k.io a mx ip4:77.72.0.170 ~all |
| Policy | Record (mathiasjorgensen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 ip4:185.194.90.5 include:relay.k.io a mx ip4:77.72.0.170 ~all |
| www CNAME | mathiasjorgensen.dk (all on mathiasjorgensen.dk) → 76.76.21.21 (AS16509) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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: 4/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.mathiasjorgensen.dk | 5_g3kNcVfij51T1HHrC7yu-2hcLFVnxfg1m9Ajr7Xro |
| 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 | 2026101902 |
| Primary NS (MNAME) | ns1.krystal.uk |
| Responsible (RNAME) | admin@k-validator-gohan-lon.krystal.uk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2018-06-13 |
| Expires | 2027-06-30 (253d) |
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 |
|---|---|---|---|
| 2026-10-19 11:29:05 shown | 1311ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-18 11:18:42 | 1036ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-17 11:15:50 | 2759ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-16 10:34:17 | 1384ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-15 10:04:13 | 2032ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-14 09:10:13 | 1308ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-13 08:04:21 | 1547ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-12 07:25:54 | 1933ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-11 06:17:44 | 1743ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-10 05:16:34 | 1935ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-08 21:51:47 | 3696ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-07 21:22:42 | 2223ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-06 21:16:40 | 1138ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-05 20:52:45 | 3071ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-04 19:59:01 | 2620ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-03 19:56:43 | 2421ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-02 19:55:30 | 2775ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-10-01 19:53:33 | 2332ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-30 19:36:49 | 2009ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-29 19:24:07 | 1452ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-28 19:11:56 | 2142ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-27 18:53:24 | 1409ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-26 18:48:31 | 10409ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-26 14:43:34 | 1222ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-09-25 14:36:13 | 1928ms | 2 NS 1 A 2 MX | 🔓 Insecure |