sandorsrengoring.dk is a .dk domain served by 2 nameservers (ns1.yayhosting.dk, ns2.yayhosting.dk). It was registered on 7 December 2023 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Mail is handled by mx1.spamfri.dk, mx2.spamfri.dk and 1 more. The zone is DNSSEC-signed and validates, has no 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.
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 195.242.130.56 |
| 🔶 Autoconfig | 195.242.130.56 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | whm03.yayhosting.dk |
| TXT Record |
|---|
| v=spf1 +include:_spf.yayhosting.dk -all |
| Policy | Record (sandorsrengoring.dk) |
|---|---|
| -all (hard fail) | v=spf1 +include:_spf.yayhosting.dk -all |
| www CNAME | sandorsrengoring.dk (all on sandorsrengoring.dk) → 185.158.133.1 (AS13335) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| 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: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.sandorsrengoring.dk | yqktGhqnFuh9S3Bo6Azzz-8xtYG_QXpHRSfdPo9Q6MU |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1.spamfri.dk | DANE-EE · SPKI · SHA-256 | 884451547A03D0AC2F628D943839BAA6… |
| SMTP _25._tcp.mx2.spamfri.dk | DANE-EE · SPKI · SHA-256 | 6598C93F79B95376BB8099E9AC862167… |
| SMTP _25._tcp.mx3.spamfri.dk | DANE-EE · SPKI · SHA-256 | BBFB0694919290E5BC9D6E2C6F47D846… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2026061804 |
| Primary NS (MNAME) | ns1.yayhosting.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2023-12-07 |
| Expires | 2026-12-06 (40d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-22 17:49:55 | 536ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-10-10 18:48:59 | 483ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-09-26 12:01:51 | 1462ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 22:54:04 | 721ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-27 05:10:45 | 709ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-08-11 15:30:11 | 8895ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-07-03 13:16:37 | 719ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-30 06:13:02 | 948ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-29 18:49:13 | 629ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-23 22:16:52 | 1062ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-22 12:49:30 | 1183ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-21 03:11:10 | 2822ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-19 09:13:58 shown | 1118ms | 2 NS 0 A 3 MX | 🔒 Secure |
| 2026-06-18 00:27:14 | 980ms | 2 NS 1 A 3 MX | 🔒 Secure |