modkalk.dk is a .dk domain served by 2 nameservers (davina.ns.cloudflare.com, renan.ns.cloudflare.com). It was registered on 31 August 2026 (WHOIS) and first appeared in the .dk zone on 1 September 2026. Its website address 104.21.73.177 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 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 |
|---|---|---|---|---|---|---|---|
| 104.21.73.177 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.164.158 | 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 |
|---|---|---|---|---|---|---|---|
| 2606:4700:3034::6815:49b1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3036::ac43:a49e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.73.177,172.67.164.158 ech=AEX+DQBBswAgACBSa1KJDOY2ytzmiJSQOpgKz1zpgTyRTL0NV+7rEqB+UgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3034::6815:49b1,2606:4700:3036::ac43:a49e |
| www | NXDOMAIN |
| www vs bare domain | www does not resolve modkalk.dk: 104.21.73.177 172.67.164.158 2606:4700:3034::6815:49b1 2606:4700:3036::ac43:a49e (AS13335) (all like this)www.modkalk.dk: no address |
| Wildcard | No |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.modkalk.dk | qprVAmg6tqqplWCViOKe0LbNT5l7yoxCoo-EulL__Xg |
| TXT | _acme-challenge.modkalk.dk | zhylnnHEBZU6Hh5pE2u3I_7s9uYFSfmz5fkyJp8I2P8 |
| 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 | 2413700084 |
| Primary NS (MNAME) | davina.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | ONE.COM A/S |
| Registered | 2026-08-31 |
| Expires | 2027-08-30 (316d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-26 07:44:36 | 10439ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-23 12:38:51 | 1065ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-18 16:20:46 | 1172ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-09 07:58:27 | 1932ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-09-01 08:56:17 shown | 1201ms | 2 NS 2 A 1 MX | 🔓 Insecure |