strandmarkensvand.dk is a .dk domain served by 2 nameservers (carter.ns.cloudflare.com, kristin.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.55.164 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mail.itmaster.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 |
|---|---|---|---|---|---|---|---|
| 104.21.55.164 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.171.170 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | mail.itmaster.net | 142.132.131.220 2a01:4f8:272:2809::5 |
mail.itmaster.net mail.itmaster.net |
AS24940 Hetzner Online GmbH AS24940 Hetzner Online GmbH |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::6815:37a4 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:abaa | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.55.164,172.67.171.170 ech=AEX+DQBB8gAgACDBlaShUNszepVlr+fR4WskQoMKgriqZm6u9xrVV0BFJAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::6815:37a4,2606:4700:3037::ac43:abaa |
| Service | Priority | Weight | Port | Target |
|---|---|---|---|---|
| _imaps._tcp | 0 | 5 | 993 | mail.itmaster.net |
| TXT Record |
|---|
| amazonses:BDcCR7xnhR6y3A5FHi6uwY9ua5TgXvmBQEY0Rm+jcaQ= |
| v=spf1 +a +mx +a:mail.itmaster.net -all |
| Policy | Record (strandmarkensvand.dk) |
|---|---|
| -all (hard fail) | v=spf1 +a +mx +a:mail.itmaster.net -all |
| Policy | Record (_dmarc.strandmarkensvand.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none |
| www | 104.21.55.164 172.67.171.170 2606:4700:3030::6815:37a4 2606:4700:3037::ac43:abaa (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network strandmarkensvand.dk: 104.21.55.164 172.67.171.170 2606:4700:3030::6815:37a4 2606:4700:3037::ac43:abaa (AS13335) www.strandmarkensvand.dk: 104.21.55.164 172.67.171.170 2606:4700:3030::6815:37a4 2606:4700:3037::ac43:abaa (AS13335) |
| Wildcard | No |
| Selector | CNAME | Key |
|---|---|---|
| s1 | s1.domainkey.u16961871.wl122.sendgrid.net | RSA · ~2048 bit |
| s2 | s2.domainkey.u16961871.wl122.sendgrid.net | 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: 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 | 2410137546 |
| Primary NS (MNAME) | carter.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-25 06:57:24 | 823ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 10:40:08 | 832ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-06 16:31:06 | 2768ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 10:31:58 shown | 978ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-22 11:04:50 | 1161ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-06 01:17:03 | 2299ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-01 10:55:01 | 1183ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-27 04:50:32 | 2950ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-18 06:33:08 | 1113ms | 2 NS 2 A 1 MX | 🔓 Insecure |