agu-online.dk is a .dk domain served by 2 nameservers (ns1.esis.dk, ns2.esis.dk). It was registered on 17 January 2022 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 213.5.39.178 is hosted by Bo data ApS (AS49974) in Denmark. Mail is handled by da3.nordicwebdesign.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 this 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 |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 213.5.39.178 | 3600s | da3.nordicwebdesign.dk | AS49974 | Bo data ApS | 213.5.32.0/21 | 🇩🇰 Denmark | Vildbjerg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | da3.nordicwebdesign.dk | 213.5.39.178 | da3.nordicwebdesign.dk | AS49974 Bo data ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 213.5.39.178 |
| 🔶 Autoconfig | 213.5.39.178 |
| TXT Record |
|---|
| v=spf1 ip4:213.5.39.178 -all |
| Policy | Record (agu-online.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:213.5.39.178 -all |
| Policy | Record (_dmarc.agu-online.dk) |
|---|---|
| p=reject | v=DMARC1;p=reject;sp=reject;rua=mailto:be7762a8bd@rua.easydmarc.eu;ruf=mailto:be7762a8bd@ruf.easydmarc.eu;fo=1 |
| www | 213.5.39.178 (AS49974) (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 | 323 |
| 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 | 2022-01-17 |
| Expires | 2027-01-16 (81d) |
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).
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-25 10:08:22 | 626ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-18 21:54:19 | 636ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-15 19:30:56 | 1048ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-13 14:43:11 | 676ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 08:44:52 | 827ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-02 00:40:45 | 2844ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-29 00:15:37 | 661ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 23:39:11 | 579ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-21 12:27:31 | 662ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-17 02:42:33 | 2034ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-05 17:44:38 | 3453ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-29 17:34:17 | 1828ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-28 08:29:05 | 624ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 00:39:50 | 611ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-23 17:59:12 | 2106ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-18 08:12:42 | 4616ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-13 03:39:52 shown | 8860ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-09 17:49:16 | 1588ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-07 03:03:11 | 676ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-05 21:23:29 | 681ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-26 08:07:41 | 1134ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-24 07:03:43 | 2591ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-21 02:13:20 | 985ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-17 03:14:50 | 16566ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-10 16:53:27 | 1523ms | 2 NS 1 A 1 MX | 🔒 Secure |