alensa.dk is a .dk domain served by 2 nameservers (ns.web4u.cz, ns2.web4u.cz). It was registered on 6 May 2014 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 31.30.27.201 is hosted by Vodafone Czech Republic a.s. (AS16019) in Czechia. Mail is handled by m213-mail.server4u.cz. 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 |
|---|---|---|---|---|---|---|---|
| 31.30.27.201 | 900s | cst2-27-201.cust.vodafone.cz | AS16019 | Vodafone Czech Republic a.s. | 31.30.0.0/16 | 🇨🇿 Czechia | Prague |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 900s | m213-mail.server4u.cz | 81.91.81.160 | m213-mail.server4u.cz | AS39790 Web4U s.r.o. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 31.30.27.201 |
| 🔶 Autoconfig | 31.30.27.201 |
| Policy | Record (_dmarc.alensa.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:69ih0j81nj@dmarc-reports.ecomailapp.com; fo=1 |
| www | 31.30.27.201 (AS16019) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| 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 | 2026020201 |
| Primary NS (MNAME) | ns.web4u.cz |
| Responsible (RNAME) | admin@web4u.cz |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 14400s |
| Field | Value |
|---|---|
| Registrar | Gransy s.r.o. |
| Registered | 2014-05-06 |
| Expires | 2027-05-31 (226d) |
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).
No other domain with this registrant in our WHOIS data yet| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 18:24:39 | 1024ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-30 15:17:48 | 874ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 15:25:06 | 10606ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-19 16:27:59 | 11387ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-02 01:26:07 shown | 1104ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 12:39:41 | 828ms | 2 NS 1 A 1 MX | 🔓 Insecure |