isoo.dk is a .dk domain served by 2 nameservers (aaron.ns.cloudflare.com, nina.ns.cloudflare.com). It was registered on 10 September 2008 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.59.150 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by cloud-7c1eac.managed-vps.net. The zone is not DNSSEC-signed, publishes a DMARC policy and is reachable over IPv6. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.59.150 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.179.190 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | cloud-7c1eac.managed-vps.net | 78.128.76.186 | cloud-7c1eac.managed-vps.net | AS57344 Telehouse EAD |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 172.67.179.190 |
| 🔶 Autoconfig | 172.67.179.190 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:3b96 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3034::ac43:b3be | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.59.150,172.67.179.190 ech=AEX+DQBBYAAgACAxrvh6uO+lluAfM5nQnCLjW61wH96yeAzBiWzsEOacfAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:3b96,2606:4700:3034::ac43:b3be |
| TXT Record |
|---|
| v=spf1 +a +mx +ip4:78.128.76.186 ~all |
| Policy | Record (isoo.dk) |
|---|---|
| ~all (soft fail) | v=spf1 +a +mx +ip4:78.128.76.186 ~all |
| Policy | Record (_dmarc.isoo.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; sp=none; rf=afrf; pct=100; ri=86400; rua=mailto:cb4b70209b404d3fa138a3e5d27ba4ce@dmarc-reports.cloudflare.net; |
| www CNAME | b6f30f0c19cff560.vercel-dns-016.com (all on vercel-dns-016.com) |
| 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: 2/10 · 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 | 2406712887 |
| Primary NS (MNAME) | aaron.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | Simply.com A/S |
| Registered | 2008-09-10 |
| Expires | 2027-09-30 (347d) |
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 |
|---|---|---|---|
| 2026-09-11 03:15:57 | 1267ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-07 17:35:54 | 1247ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 21:42:00 | 696ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-24 18:23:00 | 1159ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-18 10:57:38 | 2920ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 08:41:05 | 1550ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-25 07:46:20 shown | 4147ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 10:34:20 | 1116ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-24 07:34:21 | 927ms | 0 NS 0 A 0 MX | ❓ Unknown |
| 2026-06-18 03:51:52 | 1188ms | 2 NS 2 A 1 MX | 🔓 Insecure |