smime.dk is a .dk domain served by 3 nameservers (helium.ns.hetzner.de, hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com). It was registered on 3 March 2021 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 5.186.48.160 is hosted by FIBIA P/S (AS44869) in Denmark. Mail is handled by mail.smime.dk. 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 |
|---|---|---|---|---|---|---|---|
| 5.186.48.160 | 3600s | 5.186.48.160.static.fibianet.dk | AS44869 | FIBIA P/S | 5.186.0.0/16 | 🇩🇰 Denmark | Fuglebjerg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.smime.dk | 5.186.48.160 | 5.186.48.160.static.fibianet.dk | AS44869 FIBIA P/S |
| TXT Record |
|---|
| v=spf1 a mx ip4:5.186.48.160 -all |
| Policy | Record (smime.dk) |
|---|---|
| -all (hard fail) | v=spf1 a mx ip4:5.186.48.160 -all |
| Policy | Record (_dmarc.smime.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; fo=1; rua=mailto:dmarc_rua@smime.dk; ruf=mailto:dmarc_ruf@smime.dk |
| Flags | Tag | Value |
|---|---|---|
| 0 | issue | letsencrypt.org |
| www | 5.186.48.160 (AS44869) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~1024 bit below 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| 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 | 2026040511 |
| Primary NS (MNAME) | hydrogen.ns.hetzner.com |
| Responsible (RNAME) | dns@hetzner.com |
| Refresh | 7200s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | 1API GmbH |
| Registered | 2021-03-03 |
| Expires | 2033-03-31 (2352d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 06:39:09 | 619ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-28 04:29:22 shown | 662ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-21 10:54:21 | 746ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 11:32:57 | 963ms | 3 NS 1 A 1 MX | 🔓 Insecure |