holm-halby.dk is a .dk domain served by 2 nameservers (ns1.dnshost.net, ns2.dnshost.net). It was registered on 22 May 1997 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 20.126.78.209 is hosted by Microsoft Corporation (AS8075) in The Netherlands. Mail is handled by mx.mentor-it.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.
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 20.126.78.209 | — | — | AS8075 | Microsoft Corporation | 20.64.0.0/10 | 🇳🇱 The Netherlands | Amsterdam |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | — | mx.mentor-it.dk | 176.62.205.101 176.62.205.102 176.62.205.103 176.62.205.104 |
mx1.mentor-it.dk mx2.mentor-it.dk mx3.mentor-it.dk mx4.mentor-it.dk |
AS57030 Itm8 A/S AS57030 Itm8 A/S AS57030 Itm8 A/S AS57030 Itm8 A/S |
| TXT Record |
|---|
| _globalsign-domain-verification=-lS_3deXF8r964tNkZxTFh4AoaTLn6L4hm6RNtSdSK |
| _globalsign-domain-verification=dyfk8iHF2BLAy-wMQ18XaShTO5CMv-h5gKeU5Gxebg |
| google-site-verification=_A9XGYhLkY1GWtDpbqyBjBY_ZK8H3PWQb9nijC83VpM |
| google-site-verification=wqlzwHc9qsFJ3ZiDAvl-FA3scp5RXyU13lhUWtCZ7dw |
| MS=ms33451324 |
| ms28520100 |
| ogtonfrrqefq8rf8ukkfbqapsg |
| v=spf1 include:spf.protection.outlook.com ip4:217.13.243.56 ip4:52.138.216.130 ip4:217.13.243.53 ip4:50.31.43.121 ip4:86.58.175.4/32 ip4:86.58.175.12/32 ip4:130.185.143.10 ip4:176.62.207.45 include:dksmtp.yulsn.io include:spf.flowmailer.net include:servers.mcsv.net include:mailgun.org include:spf.mentor-it.dk ip4:77.221.252.232/29 -all |
| Y1hq24B |
| Policy | Record (holm-halby.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:spf.protection.outlook.com ip4:217.13.243.56 ip4:52.138.216.130 ip4:217.13.243.53 ip4:50.31.43.121 ip4:86.58.175.4/32 ip4:86.58.175.12/32 ip4:130.185.143.10 ip4:176.62.207.45 include:dksmtp.yulsn.io include:spf.flowmailer.net include:servers.mcsv.net include:mailgun.org include:spf.mentor-it.dk ip4:77.221.252.232/29 -all |
| Policy | Record (_dmarc.holm-halby.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; sp=reject; pct=100; adkim=r; aspf=r |
| www | 20.126.78.209 (AS8075) (address records, no CNAME) |
| www vs bare domain | Same network |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| dkim | dkim.holm-halby-dk.dkim.yulsn.io | RSA · ~1024 bit below 2048 bit |
| k1 | dkim.mcsv.net | RSA · ~1024 bit below 2048 bit |
| s1 | — | RSA · ~1024 bit below 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: 10/10 · policy: -all
| 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 | 1756740801 |
| Primary NS (MNAME) | ns1.dnshost.net |
| Responsible (RNAME) | zonemaster@dnshost@net |
| Refresh | 43200s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |
| Field | Value |
|---|---|
| Registrar | Name SRS AB |
| Registered | 1997-05-22 |
| Expires | 2027-06-30 (250d) |
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 |
|---|---|---|---|
| 2026-10-21 01:37:25 | 989ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-09-18 22:00:28 | 9583ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-07-03 13:24:19 | 2516ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-26 02:49:19 | 1860ms | 2 NS 1 A 1 MX | 🔓 Insecure |
| 2026-06-17 13:28:59 shown | 2348ms | 2 NS 1 A 1 MX | 🔓 Insecure |