biersys.dk is a .dk domain served by 4 nameservers (ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and 1 more). It was registered on 16 August 2002 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 193.3.142.70 is hosted by TDC Holding A/S (AS3292) in Denmark. Mail is handled by mx.biersys.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 193.3.142.70 | 600s | — | AS3292 | TDC Holding A/S | 193.3.142.0/24 | 🇩🇰 Denmark | Søborg |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 21600s | mx.biersys.dk | 195.215.5.87 | — | AS3292 TDC Holding A/S |
| TXT Record |
|---|
| v=spf1 ip4:193.3.142.70 -all |
| Policy | Record (biersys.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:193.3.142.70 -all |
| Policy | Record (_dmarc.biersys.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none; fo=1; rua=mailto:cv1zdpyr@ag.eu.dmarcian.com; ruf=mailto:cv1zdpyr@fr.eu.dmarcian.com; |
| www | 195.215.5.87 (AS3292) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Denial of existence | Compact NSEC (RFC 9824, "black lies") not walkable |
| 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 | 2026011628 |
| Primary NS (MNAME) | ns1.eurodns.com |
| Responsible (RNAME) | hostmaster@eurodns.com |
| Refresh | 43200s |
| Retry | 7200s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Field | Value |
|---|---|
| Registrar | Eurodns S.A |
| Registered | 2002-08-16 |
| Expires | 2027-09-30 (340d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-12 00:24:49 | 2261ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-10 22:15:41 | 554ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-10-07 15:01:09 | 644ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-25 03:10:59 | 701ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-24 02:24:02 | 1903ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-22 12:02:24 | 765ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-09-05 07:34:45 | 2092ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-31 11:00:08 | 845ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-27 18:19:15 | 891ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-17 21:22:47 | 3059ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-08-16 06:59:31 | 6857ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-29 19:37:28 | 9731ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-28 06:12:40 | 11715ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-14 13:57:55 | 13734ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-07-10 00:33:55 | 964ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-23 18:10:38 | 903ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 08:54:50 | 2690ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-21 04:42:04 shown | 2009ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-20 15:54:28 | 1259ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-19 23:50:08 | 3800ms | 4 NS 1 A 1 MX | 🔒 Secure |
| 2026-06-16 14:29:34 | 1248ms | 4 NS 1 A 1 MX | 🔒 Secure |