symposion.dk is a .dk domain served by 2 nameservers (ns.scannet2.dk, ns2.scannet2.dk). It was registered on 6 June 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.88.99.144 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx.spamfilter.io. The zone is DNSSEC-signed and validates, 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 193.88.99.144 | 1800s | — | AS3292 | TDC Holding A/S | 193.88.0.0/15 | 🇩🇰 Denmark | Esbjerg |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | autodiscoverredirect.webexchange.nu → 46.36.209.50 |
| 🔶 Autoconfig | symposion.dk → 193.88.99.144 |
| TXT Record |
|---|
| v=spf1 include:spf.scannet.dk -all |
| Policy | Record (symposion.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.scannet.dk -all |
| www CNAME | symposion.dk (all on symposion.dk) → 193.88.99.144 (AS3292) |
| www vs bare domain | Same network |
| Wildcard | Yes: any name under the zone resolves |
| Denial of existence | NSEC3 · 1 iteration · 1-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
DNS lookups: 3/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.symposion.dk | symposion.dk |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx.spamfilter.io | DANE-EE · SPKI · SHA-256 | 9A25F05F2E322DABDCC9B7A06AB47A2D… |
| Check | Result |
|---|---|
| Validation Status | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2020052600 |
| Primary NS (MNAME) | ns.scannet2.dk |
| Responsible (RNAME) | hostmaster@scannet.dk |
| Refresh | 14400s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 300s |
| Field | Value |
|---|---|
| Registrar | Punktum dk A/S (direct) |
| Registered | 2000-06-06 |
| Expires | 2027-06-30 (252d) |
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 |
|---|---|---|---|
| 2026-09-30 11:37:59 | 672ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-26 21:17:03 shown | 663ms | 2 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-18 04:39:31 | 897ms | 2 NS 1 A 1 MX | 🔒 Secure |