aifirewall.dk is a .dk domain served by 2 nameservers (ns.web4u.cz, ns2.web4u.cz). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 81.91.86.14 is hosted by Web4U s.r.o. (AS39790) in Czechia. Mail is handled by mx1.mailchannels.net, mx2.mailchannels.net. The zone is not DNSSEC-signed, has no DMARC policy and is reachable over IPv6. 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 81.91.86.14 | 900s | php7.web4u.cz | AS39790 | Web4U s.r.o. | 81.91.80.0/20 | 🇨🇿 Czechia | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 900s | mx1.mailchannels.net | 54.187.177.89 | ec2-54-187-177-89.us-west-2.compute.amazonaws.com | AS16509 Amazon.com, Inc. |
| 10 | 900s | mx2.mailchannels.net | 54.69.1.140 | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | AS16509 Amazon.com, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 81.91.86.14 |
| 🔶 Autoconfig | 81.91.86.14 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2001:1568::14 | 900s | php7.web4u.cz | AS39790 | Web4U s.r.o. | 2001:1568:0:0:0:0:0:0/32 | 🇨🇿 Czechia | — |
| www | 81.91.86.14 2001:1568::14 (AS39790) (address records, no CNAME) |
| www vs bare domain | Same network aifirewall.dk: 81.91.86.14 2001:1568::14 (AS39790) www.aifirewall.dk: 81.91.86.14 2001:1568::14 (AS39790) |
| Wildcard | Yes: any name under the zone resolves |
| 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 | 2026031301 |
| Primary NS (MNAME) | ns.web4u.cz |
| Responsible (RNAME) | admin@web4u.cz |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 14400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 11:17:53 shown | 6537ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 10:57:36 | 2500ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-08-27 03:10:51 | 1046ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-28 07:59:44 | 1150ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-20 15:04:18 | 980ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 12:57:20 | 1244ms | 2 NS 1 A 2 MX | 🔓 Insecure |
| 2026-06-16 12:53:59 | 3487ms | 2 NS 1 A 2 MX | 🔓 Insecure |