syrent.dk is a .dk domain served by 2 nameservers (ns1.atznet.dk, ns2.atznet.dk). It was registered on 7 October 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.130.99 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by mx4.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 195.242.130.99 | 86400s | web2.atznet.dk | AS62121 | Christian Ebsen ApS | 195.242.130.0/23 | 🇩🇰 Denmark | — |
| TXT Record |
|---|
| v=spf1 include:_spf.atznet.dk -all |
| Policy | Record (syrent.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.atznet.dk -all |
| www CNAME | syrent.dk (all on syrent.dk) |
| 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: 1/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx2.spamfri.dk | DANE-EE · SPKI · SHA-256 | 6598C93F79B95376BB8099E9AC862167… |
| SMTP _25._tcp.mx3.spamfri.dk | DANE-EE · SPKI · SHA-256 | BBFB0694919290E5BC9D6E2C6F47D846… |
| SMTP _25._tcp.mx4.spamfri.dk | DANE-EE · SPKI · SHA-256 | 4EE743A99328AEF5142706CA5FD3AD61… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2019101406 |
| Primary NS (MNAME) | ns1.atznet.dk |
| Responsible (RNAME) | hostmaster@atznet.dk |
| Refresh | 86400s |
| Retry | 7200s |
| Expire | 3600000s |
| Minimum (neg-cache TTL) | 172800s |
| Field | Value |
|---|---|
| Registrar | dns.services ApS |
| Registered | 2013-10-07 |
| Expires | 2026-10-31 (7d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-11 05:39:06 | 409ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 16:32:26 | 601ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-26 01:12:03 | 9396ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-09 16:31:24 | 415ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-27 05:22:00 | 589ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-14 04:23:18 | 864ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-30 18:22:20 | 778ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-29 13:06:11 | 757ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-29 11:16:01 shown | 633ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-26 21:16:06 | 541ms | 2 NS 1 A 3 MX | 🔒 Secure |
| 2026-06-22 12:12:26 | 1116ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 01:58:17 | 1167ms | 2 NS 1 A 3 MX | 🔒 Secure |