nisvon.dk is a .dk domain served by 3 nameservers (ns1.e-studio.dk, ns2.e-studio.dk, ns3.e-studio.dk). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 195.242.131.64 is hosted by Christian Ebsen ApS (AS62121) in Denmark. Mail is handled by nisvon.dk. The zone is not DNSSEC-signed, has no 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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 195.242.131.64 | 14400s | web2.e-studio.dk | AS62121 | Christian Ebsen ApS | 195.242.130.0/23 | 🇩🇰 Denmark | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 14400s | nisvon.dk | 195.242.131.64 | web2.e-studio.dk | AS62121 Christian Ebsen ApS |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 195.242.131.64 |
| 🔶 Autoconfig | 195.242.131.64 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| v=spf1 ip4:195.242.131.64 include:_spf.e-studio.dk -all |
| Policy | Record (nisvon.dk) |
|---|---|
| -all (hard fail) | v=spf1 ip4:195.242.131.64 include:_spf.e-studio.dk -all |
| www CNAME | 93q76lnz.up.railway.app (all on railway.app) → 69.46.46.35 (AS400940) |
| www vs bare domain | Different networks (all like this) |
| Wildcard | No |
| Denial of existence | NSEC3 · 7 iterations · 8-byte salt RFC 9276 recommends 0 iterations and no salt |
| CDS / CDNSKEY | None 0 CDS, 0 CDNSKEY |
| Selector | CNAME | Key |
|---|---|---|
| default | — | RSA · ~2048 bit |
DKIM selectors can't be listed, so we check the common ones (Microsoft 365, Google, Mailchimp, SendGrid, generic). Keys under other selectors aren't shown.
DNS lookups: 1/10 · policy: -all
No problems found| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.nisvon.dk | jQnCIZErHssjcrda5BWey055yS80SV4Yj7Y3824OZBA |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2026093004 |
| Primary NS (MNAME) | ns1.e-studio.dk |
| Responsible (RNAME) | hostmaster@mailrelay.e-studio.dk |
| Refresh | 3600s |
| Retry | 1800s |
| Expire | 1209600s |
| Minimum (neg-cache TTL) | 86400s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 23:56:02 shown | 889ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-24 22:28:41 | 960ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-23 22:21:45 | 652ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-28 09:07:03 | 2682ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-25 11:22:16 | 8909ms | 3 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 15:33:51 | 1399ms | 3 NS 1 A 1 MX | 🔓 Insecure |