esl.dk is a .dk domain served by 4 nameservers (ns1.c1.sdc-hosting.com, ns1.c2.sdc-hosting.com, ns1.c3.sdc-hosting.com and 1 more). It was registered on 17 September 1999 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 51.75.250.215 is hosted by OVH SAS (AS16276) in France. Mail is handled by mail1.c1.sdc-hosting.com, mail1.c2.sdc-hosting.com and 1 more. The zone is not DNSSEC-signed, 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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.c1.sdc-hosting.com | — | — | — |
| ns1.c2.sdc-hosting.com | — | — | — |
| ns1.c3.sdc-hosting.com | — | — | — |
| ns1.c4.sdc-hosting.com | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 51.75.250.215 | — | 215.ip-51-75-250.eu | AS16276 | OVH SAS | 51.75.0.0/16 | 🇫🇷 France | — |
| www | 94.231.103.100 (AS48854) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | NSEC zone can be walked (all names enumerable) |
| CDS / CDNSKEY | Published: key rollovers can be automated with the registry (RFC 7344/8078) 1 CDS, 1 CDNSKEY |
| 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 | 158 |
| Primary NS (MNAME) | ns1.c1.sdc-hosting.com |
| Responsible (RNAME) | support@sdc-hosting.com |
| Refresh | 900s |
| Retry | 300s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 1999-09-17 |
| Expires | 2027-09-30 (348d) |
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 |
|---|---|---|---|
| 2026-10-12 13:40:57 | 1749ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-10-04 00:16:27 | 2138ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-09-01 08:43:37 | 1324ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-10 19:01:00 | 925ms | 3 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-03 20:23:36 | 6670ms | 4 NS 1 A 3 MX | 🔓 Insecure |
| 2026-07-02 00:43:32 | 5285ms | 4 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 08:24:35 shown | 450ms | 4 NS 1 A 3 MX | 🔓 Insecure |
| 2026-06-17 08:24:18 | 3230ms | 4 NS 1 A 3 MX | 🔓 Insecure |