ch-tool.dk is a .dk domain served by 2 nameservers (primary.infoserv.dk, secondary.infoserv.dk). It was registered on 4 December 2000 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 86.52.24.209 is hosted by Sinal A/S (AS39642) in Denmark. Mail is handled by mail.ishost.dk. The zone is not DNSSEC-signed, 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 |
|---|---|---|---|
| primary.infoserv.dk | — | — | — |
| secondary.infoserv.dk | — | — | — |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 86.52.24.209 | — | 86-52-24-209.norlyscustomer.net | AS39642 | Sinal A/S | 86.52.0.0/16 | 🇩🇰 Denmark | Randers |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | — | mail.ishost.dk | 139.162.148.133 | mail.ishost.dk | AS63949 Akamai Connected Cloud |
| TXT Record |
|---|
| v=spf1 mx a:mail.ishost.dk a:mail3.ishost.dk -all |
| Policy | Record (ch-tool.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a:mail.ishost.dk a:mail3.ishost.dk -all |
| Policy | Record (_dmarc.ch-tool.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject |
| www | 86.52.24.209 (AS39642) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| 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: 3/10 · policy: -all
No problems found| 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 | 202510319 |
| Primary NS (MNAME) | primary.infoserv.dk |
| Responsible (RNAME) | admin@infoserv |
| Refresh | 900s |
| Retry | 300s |
| Expire | 3600s |
| Minimum (neg-cache TTL) | 900s |
| Field | Value |
|---|---|
| Registrar | WEBBUREAUET INFOSERV ApS |
| Registered | 2000-12-04 |
| Expires | 2026-12-31 (75d) |
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 |
|---|---|---|---|
| 2026-08-27 19:51:10 | 9547ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-08-24 14:29:42 | 2221ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-16 20:15:58 shown | 864ms | 2 NS 1 A 1 MX | 🔓 Insecure |