tessarem.dk is a .dk domain served by 2 nameservers (doug.ns.cloudflare.com, ruth.ns.cloudflare.com). It first appeared in the .dk zone on 17 July 2026. Its website address 104.21.21.126 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by .. The zone is not DNSSEC-signed, has no 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 |
|---|---|---|---|---|---|---|---|
| 104.21.21.126 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.198.159 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:157e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::ac43:c69f | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.21.126,172.67.198.159 ech=AEX+DQBBqgAgACBkMwbhV5ng2w68ehFXyp082k8K4Fsmv7n5YgO+3YWdAgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:157e,2606:4700:3032::ac43:c69f |
| www | 104.21.21.126 172.67.198.159 2606:4700:3031::6815:157e 2606:4700:3032::ac43:c69f (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network tessarem.dk: 104.21.21.126 172.67.198.159 2606:4700:3031::6815:157e 2606:4700:3032::ac43:c69f (AS13335) www.tessarem.dk: 104.21.21.126 172.67.198.159 2606:4700:3031::6815:157e 2606:4700:3032::ac43:c69f (AS13335) |
| Wildcard | No |
| 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 | 2415420147 |
| Primary NS (MNAME) | doug.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-09 09:22:21 shown | 1434ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-10-01 05:55:29 | 494ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-23 18:03:49 | 614ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-27 22:07:49 | 593ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-26 23:19:02 | 916ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-23 03:15:50 | 828ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-17 08:54:18 | 764ms | 2 NS 1 A 1 MX | 🔒 Secure |