gensyn-optik.dk is a .dk domain served by 5 nameservers (ns1pri.webhosting.dk, ns2.mywebtonet.com, ns2.webhosting.dk and 2 more). It was registered on 30 November 2012 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 157.250.163.11 is hosted by Cibicom A/S (AS3342) in Denmark. Mail is handled by webhotel17.webhosting.dk. The zone is DNSSEC-signed and validates, publishes a DMARC policy and has no IPv6 address. Below are all of its DNS records from our latest 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 |
|---|---|---|---|---|---|---|---|
| 157.250.163.11 | 600s | php52serv1.webhosting.dk | AS3342 | Cibicom A/S | 157.250.160.0/20 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 600s | webhotel17.webhosting.dk | 157.250.160.37 | webhotel17.webhosting.dk | AS3342 Cibicom A/S |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | php52serv1.webhosting.dk → 157.250.163.11 |
| 🔶 Autoconfig | php52serv1.webhosting.dk → 157.250.163.11 |
| TXT Record |
|---|
| v=spf1 include:spf.webhosting.dk ~all |
| Policy | Record (gensyn-optik.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:spf.webhosting.dk ~all |
| Policy | Record (_dmarc.gensyn-optik.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1;p=none; |
| www CNAME | php52serv1.webhosting.dk (all on webhosting.dk) → 157.250.163.11 (AS3342) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 1/10 · policy: ~all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.gensyn-optik.dk | php52serv1.webhosting.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.webhotel17.webhosting.dk | DANE-TA · SPKI · SHA-256 | FA4EFC305AA17A4FEEE8B29B2DAA8847… |
| SMTP _25._tcp.webhotel17.webhosting.dk | DANE-EE · SPKI · SHA-256 | FA4EFC305AA17A4FEEE8B29B2DAA8847… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2012113149 |
| Primary NS (MNAME) | ns1pri.webhosting.dk |
| Responsible (RNAME) | hostmaster@webhosting.dk |
| Refresh | 21600s |
| Retry | 3600s |
| Expire | 14515200s |
| Minimum (neg-cache TTL) | 600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2012-11-30 |
| Expires | 2026-11-30 (44d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 23:52:17 shown | 2697ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 16:58:02 | 870ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 13:19:51 | 728ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 17:39:04 | 9544ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-02 02:02:40 | 855ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-11 08:48:40 | 9828ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-25 00:58:44 | 1125ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 10:18:55 | 1166ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-20 00:45:10 | 2797ms | 5 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-17 09:47:09 | 796ms | 5 NS 1 A 1 MX | 🔒 Secure |