syhh.dk is a .dk domain served by 2 nameservers (ns01.one.com, ns02.one.com). It was registered on 16 August 2009 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 217.116.232.206 is hosted by Sentia Denmark A/S (AS47292) in Denmark. Mail is handled by mx1.gigahost.dk, mx2.gigahost.dk and 1 more. The zone is DNSSEC-signed and validates, 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 |
|---|---|---|---|---|---|---|---|
| 217.116.232.206 | 7200s | 206.giga-ptr.232.116.217.in-addr.arpa web6.gigahost.dk |
AS47292 | Sentia Denmark A/S | 217.116.224.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 7200s | mx1.gigahost.dk | 46.183.139.11 | mx1.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 7200s | mx2.gigahost.dk | 46.183.139.12 | mx2.gigahost.dk | AS47292 Sentia Denmark A/S |
| 10 | 7200s | mx3.gigahost.dk | 46.183.139.13 | mx3.gigahost.dk | AS47292 Sentia Denmark A/S |
| TXT Record |
|---|
| v=spf1 include:spf_sag.syhh.dk include:spf_het.syhh.dk include:spf_wd.syhh.dk include:_custspf.one.com ip4:192.168.1.1/20 -all |
| Policy | Record (syhh.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf_sag.syhh.dk include:spf_het.syhh.dk include:spf_wd.syhh.dk include:_custspf.one.com ip4:192.168.1.1/20 -all |
| Policy | Record (_dmarc.syhh.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc-reports@syhhlog.dk; fo=1 |
| www CNAME | syhh.dk (all on syhh.dk) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 0 iterations · no salt RFC 9276 ✓ |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| — | 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| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2026081001 |
| Primary NS (MNAME) | ns01.one.com |
| Responsible (RNAME) | hostmaster@one.com |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2009-08-16 |
| Expires | 2027-08-31 (314d) |
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).
| Domain | Registrar |
|---|---|
| heidensleben.dk | Punktum dk A/S (direct) |
| syhhmon.dk | dns.services ApS |
| talentloebet.dk | Punktum dk A/S (direct) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-19 01:00:19 | 806ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-15 22:17:55 | 609ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-13 19:44:33 | 1254ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-09 15:56:38 | 1216ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-07 14:13:54 | 2765ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-05 09:01:49 | 1036ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-02 08:28:26 | 1052ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-27 07:09:55 | 1682ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-04 06:59:44 | 440ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-21 13:00:41 | 5344ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-19 10:12:42 | 1479ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-16 19:04:23 | 2717ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-11 19:09:55 shown | 1134ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-09 22:00:09 | 1114ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-08 06:51:38 | 9088ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-03 16:37:48 | 707ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-01 19:16:17 | 1023ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-30 20:58:05 | 9051ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-29 01:50:50 | 2883ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-24 13:21:13 | 1012ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-04 16:50:17 | 920ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-25 17:46:48 | 770ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-17 14:26:21 | 1651ms | 2 NS 1 A 3 MX | 🔒 Secure |