chesterton.dk is a .dk domain served by 2 nameservers (edna.ns.cloudflare.com, kai.ns.cloudflare.com). It was registered on 31 July 2002 (WHOIS) and 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+DQBBUgAgACCaYBWAwjIkp8mlzCS9pSZQf9bWv/hRNykqiX9eHrtgeQAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= 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 | 104.21.25.225 172.67.134.207 2606:4700:3031::6815:19e1 2606:4700:3035::ac43:86cf (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network chesterton.dk: 104.21.25.225 172.67.134.207 2606:4700:3031::6815:19e1 2606:4700:3035::ac43:86cf (AS13335) www.chesterton.dk: 104.21.25.225 172.67.134.207 2606:4700:3031::6815:19e1 2606:4700:3035::ac43:86cf (AS13335) |
| 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 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| 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 | 2417713327 |
| Primary NS (MNAME) | edna.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Field | Value |
|---|---|
| Registrar | CURANET A/S |
| Registered | 2002-07-31 |
| Expires | 2027-09-30 (344d) |
Other .dk domains whose WHOIS registrant has the same name and postal address. Matched on a keyed hash: the registrant's details are not stored or shown. Covers only domains whose WHOIS we have fetched (refreshed about monthly).
| Domain | Registrar |
|---|---|
| danseal.dk | CURANET A/S |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-20 16:28:06 shown | 579ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-10-19 08:27:11 | 2034ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-10-18 07:51:51 | 764ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-10-17 07:47:45 | 1495ms | 2 NS 2 A 4 MX | 🔓 Insecure |
| 2026-09-30 09:54:56 | 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 |