chesterton.dk is a .dk domain served by 2 nameservers (edna.ns.cloudflare.com, kai.ns.cloudflare.com). It was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.25.225 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by mx1-dk.centerasecurity.dk, mx2-dk.centerasecurity.dk and 2 more. 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 |
|---|---|---|---|---|---|---|---|
| 104.21.25.225 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.134.207 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::6815:19e1 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3035::ac43:86cf | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.25.225,172.67.134.207 ech=AEX+DQBB9wAgACBPo7RKuTJy7YIFFap4JESCo4wLkJgvJ8jRHordHp8VagAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::6815:19e1,2606:4700:3035::ac43:86cf |
| TXT Record |
|---|
| v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com -all |
| Policy | Record (chesterton.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.centerasecurity.dk include:spf.protection.outlook.com -all |
| Policy | Record (_dmarc.chesterton.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:63c7d7278d628@dmarc.centerasecurity.com; |
| www | Address record (no CNAME) |
| Wildcard | No |
DNS lookups: 2/10 · policy: -all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| 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 | 2415163045 |
| Primary NS (MNAME) | edna.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-09-30 09:54:56 shown | 742ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-19 06:46:20 | 1499ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-04 00:02:35 | 1373ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-08-28 06:58:53 | 1174ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-19 01:44:16 | 1015ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-08-17 04:05:30 | 3087ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-07-22 09:44:46 | 979ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-24 01:31:45 | 763ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 21:00:30 | 2135ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-20 17:54:54 | 603ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-19 23:41:58 | 2352ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-17 01:43:45 | 65535ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 20:37:12 | 1660ms | 2 NS 2 A 1 MX | 🔓 Insecure |
| 2026-06-16 20:30:55 | 493ms | 2 NS 2 A 1 MX | 🔓 Insecure |