jespermathiassen.dk is a .dk domain served by 2 nameservers (margot.ns.cloudflare.com, uriah.ns.cloudflare.com). It was registered on 7 July 2013 (WHOIS) and was already in the .dk zone when our tracking began on 16 June 2026. Its website address 104.21.83.253 is hosted by Cloudflare, Inc. (AS13335). Mail is handled by route2.mx.cloudflare.net, route1.mx.cloudflare.net and 1 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 |
|---|---|---|---|---|---|---|---|
| 104.21.83.253 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.184.4 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.83.253 |
| 🔶 Autoconfig | 172.67.184.4 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2a06:98c1:3120::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| 2a06:98c1:3121::1 | 300s | — | AS13335 | Cloudflare, Inc. | 2a06:98c1:3120:0:0:0:0:0/46 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.83.253,172.67.184.4 ech=AEX+DQBBMQAgACA/y247e5JDoD0Lch7mj0p0Uie7Z8Z/LCbpIDyspl9aNAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:b804,2606:4700:3036::6815:53fd |
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com ~all |
| Policy | Record (jespermathiassen.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net include:_spf.google.com ~all |
| Policy | Record (_dmarc.jespermathiassen.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:jesper.mathiassen@gmail.com |
| www | 188.114.96.1 188.114.97.1 2606:4700:3031::ac43:b804 2606:4700:3036::6815:53fd (AS13335) (address records, no CNAME) |
| www vs bare domain | Same network jespermathiassen.dk: 104.21.83.253 172.67.184.4 2a06:98c1:3120::1 2a06:98c1:3121::1 (AS13335) www.jespermathiassen.dk: 188.114.96.1 188.114.97.1 2606:4700:3031::ac43:b804 2606:4700:3036::6815:53fd (AS13335) |
| Wildcard | Yes: any name under the zone resolves |
DNS lookups: 2/10 · policy: ~all
No problems found| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route1.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 0F0C6C164A36F97E7B4C5A5B69D6F4F2… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-EE · SPKI · SHA-256 | 9BE5B7D47F9EFF930C11EB04D27CAE6B… |
| SMTP _25._tcp.route3.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| 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 | 2417399972 |
| Primary NS (MNAME) | margot.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 | 2013-07-07 |
| Expires | 2027-07-31 (285d) |
| Scanned At | Duration | Records | DNSSEC |
|---|---|---|---|
| 2026-10-13 21:58:22 shown | 2062ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-09 09:28:07 | 2968ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-08 23:12:50 | 1271ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-10-07 23:06:39 | 695ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-09-23 21:37:04 | 997ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-25 12:23:26 | 9952ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-18 02:11:31 | 1783ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-15 01:50:19 | 7937ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-08-10 03:23:09 | 10953ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-26 21:52:04 | 1444ms | 2 NS 2 A 3 MX | 🔓 Insecure |
| 2026-06-17 17:50:00 | 2193ms | 2 NS 2 A 3 MX | 🔓 Insecure |