synthmax.dk is a .dk domain served by 2 nameservers (dave.ns.cloudflare.com, edna.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.35.18 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mailserver.purelymail.com. The zone is not DNSSEC-signed, publishes a 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 |
|---|---|---|---|---|---|---|---|
| 104.21.35.18 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.167.180 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mailserver.purelymail.com | 18.204.123.63 | ec2-18-204-123-63.compute-1.amazonaws.com | AS14618 Amazon.com, Inc. |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.35.18 |
| 🔶 Autoconfig | 104.21.35.18 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::ac43:a7b4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::6815:2312 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.35.18,172.67.167.180 ech=AEX+DQBBdQAgACBuWIoEi/Zsqm6VZasO+RrdRhvubYHr5tV5IEMh8O82CQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::ac43:a7b4,2606:4700:3036::6815:2312 |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _autodiscover._tcp | 0 | 0 | 443 | cpanelemaildiscovery.cpanel.net |
| TXT Record |
|---|
| purelymail_ownership_proof=7627cfbaf477ae21f2fb42a770bf5cce6020cc0bf4ef7c2babf4d8ba3e9d790a6d0624952989ffc2e026d0843a2eef6b9ac2eb0c7d34e3ba56620b46d68fec61 |
| v=spf1 include:_spf.purelymail.com ~all |
| Policy | Record (synthmax.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.purelymail.com ~all |
| Policy | Record (_dmarc.synthmax.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; ruf=mailto:dmarc@purelymail.com |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve synthmax.dk: 104.21.35.18 172.67.167.180 2606:4700:3034::ac43:a7b4 2606:4700:3036::6815:2312 (AS13335) (all like this)www.synthmax.dk: no address |
| Wildcard | No |
DNS lookups: 1/10 · 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 | 2416478746 |
| Primary NS (MNAME) | dave.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-07 16:00:41 shown | 606ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-03 20:17:39 | 459ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-12 20:10:30 | 9987ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-05 18:01:08 | 754ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 22:24:07 | 925ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-04 22:27:41 | 1866ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-07 02:14:17 | 1255ms | 2 NS 2 A 1 MX | ❓ Unknown |
| 2026-06-27 04:36:43 | 938ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-26 02:55:03 | 1275ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 22:00:37 | 1097ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 21:03:38 | 800ms | 2 NS 2 A 1 MX | 🔓 Insecure |