| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 37.221.193.137 | 300s | v2202608377643492453.hotsrv.de | AS197540 | netcup GmbH | 37.221.192.0/21 | 🇩🇪 Germany | Nuremberg |
| TXT Record |
|---|
| v=spf1 include:_spf.mx.cloudflare.net ~all |
| Policy | Record (butter.dk) |
|---|---|
| ~all (soft fail) | v=spf1 include:_spf.mx.cloudflare.net ~all |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.butter.dk | D5iGQJc1lwZF_W_12Bo8pxTx0XY_kvPYWSKKT0jnKBE |
| TXT | _acme-challenge.butter.dk | tR_YmUe2yBEz3Os-lf0L0_13R0D-X7Jv3OPA7wjiPTk |
| Service / Owner | Type | Cert association |
|---|---|---|
| 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.route1.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| SMTP _25._tcp.route2.mx.cloudflare.net | DANE-TA · SPKI · SHA-256 | 59E738E674221702AF1EDB87C5200C1A… |
| 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.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 | 🔒 Secure |
| AD Flag (resolver validates) | ✓ Set |
| DS Record | ✓ Found |
| DNSKEY Record | ✓ Found |
| Flags | fully validated |
| Field | Value |
|---|---|
| Serial | 2413650884 |
| Primary NS (MNAME) | fred.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-31 16:59:10 | 3151ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-08-30 14:32:05 | 1997ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-08-29 08:19:16 | 2863ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-08-15 10:45:42 | 1779ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-08-06 16:15:42 | 3486ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-07-16 21:35:40 | 1251ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-06-23 03:27:14 | 1900ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-06-18 12:06:19 | 5843ms | 2 NS 1 A 3 MX | 🔒 Secure | View |
| 2026-06-16 17:55:38 | 821ms | 2 NS 1 A 3 MX | 🔒 Secure | View |