collegesyd.dk is a .dk domain served by 2 nameservers (ns1.esis.dk, ns2.esis.dk). It was registered on 6 October 2004 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 185.19.134.87 is hosted by Syddansk Erhvervsskole Odense-Vejle (AS199374) in Denmark. Mail is handled by mxnonexistent.collegesyd.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.
| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.esis.dk | 185.19.134.2 | ns1.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| ns2.esis.dk | 185.19.134.3 | ns2.esis.dk | AS199374 Syddansk Erhvervsskole Odense-Vejle |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 185.19.134.87 |
| 🔶 Autoconfig | 185.19.134.87 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (collegesyd.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.collegesyd.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; adkim=r; aspf=r |
| www | 185.19.134.87 (AS199374) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 50 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 0/10 · policy: -all
No problems found| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2020051803 |
| Primary NS (MNAME) | ns1.esis.dk |
| Responsible (RNAME) | hostmaster |
| Refresh | 900s |
| Retry | 600s |
| Expire | 86400s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2004-10-06 |
| Expires | 2027-07-31 (287d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-15 17:13:21 shown | 878ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-15 17:13:20 | 1161ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 13:13:50 | 1630ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 04:12:41 | 523ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 22:35:12 | 526ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 06:20:17 | 2727ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-30 06:05:52 | 458ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 05:54:41 | 627ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 04:34:39 | 921ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-23 02:15:52 | 3296ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-16 01:35:53 | 712ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-13 18:18:29 | 732ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-04 12:30:58 | 602ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 18:15:59 | 1009ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 08:05:42 | 762ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-26 15:32:34 | 513ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-24 02:48:52 | 16734ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-18 23:51:03 | 2021ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-17 13:56:43 | 1266ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-12 09:11:43 | 1930ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-10 00:40:40 | 3214ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-02 23:29:03 | 829ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-26 12:41:40 | 8676ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-23 11:41:38 | 3581ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 05:41:15 | 738ms | 2 NS 1 A 1 MX | 🔒 Secure |