sommer-feldinger.dk is a .dk domain served by 2 nameservers (sasha.ns.cloudflare.com, sean.ns.cloudflare.com). It was registered on 7 January 2026 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.19.177 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 has no IPv6 address. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.19.177 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.187.9 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| TXT Record |
|---|
| protonmail-verification=14d5378e5c3f7b56257a2be5e8c7eac706064d38 |
| v=spf1 include:_spf.protonmail.ch include:alias.proton.me ~all |
| Policy | Record (sommer-feldinger.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.protonmail.ch include:alias.proton.me ~all |
| Policy | Record (_dmarc.sommer-feldinger.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s |
| www | 104.21.19.177 172.67.187.9 2606:4700:3030::6815:13b1 2606:4700:3033::ac43:bb09 (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network sommer-feldinger.dk: 104.21.19.177 172.67.187.9 2606:4700:3030::6815:13b1 2606:4700:3033::ac43:bb09 (AS13335) www.sommer-feldinger.dk: 104.21.19.177 172.67.187.9 2606:4700:3030::6815:13b1 2606:4700:3033::ac43:bb09 (AS13335) |
| 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: 3/10 · 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 | 76BB66711DA416433CA890A5B2E5A053… |
| SMTP _25._tcp.mailsec.protonmail.ch | DANE-EE · SPKI · SHA-256 | 6111A5698D23C89E09C36FF833C1487E… |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Registrar | nordicway ApS |
| Registered | 2026-01-07 |
| Expires | 2027-01-06 (76d) |
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 00:58:41 | 4414ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-09-09 00:48:51 | 2208ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-26 22:10:41 | 994ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-09 20:11:39 | 4779ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-08-08 09:02:52 | 1796ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-30 05:48:28 shown | 16006ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-07 04:18:49 | 3938ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-07-04 18:50:40 | 6293ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-26 01:06:38 | 1006ms | 2 NS 2 A 2 MX | 🔓 Insecure |
| 2026-06-17 16:09:28 | 5560ms | 2 NS 2 A 2 MX | 🔓 Insecure |