| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.39.139 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.146.25 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 300s | mail.tekup.dk | 57.128.215.250 | vps-70333b3c.vps.ovh.net | AS16276 OVH SAS |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3030::ac43:9219 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::6815:278b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.39.139,172.67.146.25 ech=AEX+DQBBbQAgACDq5ptK1ZSRUTBxz7UGx+0FHPc6JjZ1C4JMqRouYCazWgAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3030::ac43:9219,2606:4700:3037::6815:278b |
| TXT Record |
|---|
| v=spf1 mx -all |
| Policy | Record (tekup.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx -all |
| Policy | Record (_dmarc.tekup.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=mailto:postmaster@tekup.dk |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.tekup.dk | 3ISNxvO2CozDSwEjoxLmyZlRd5QqTW_UbHylWvLsxAA |
| TXT | _acme-challenge.tekup.dk | oj-h4xnfxexXMBM9n2HvcO4BggJz34GejCiNeldXVVU |
| 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 | 2413520983 |
| Primary NS (MNAME) | fonzie.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 00:32:07 | 1139ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-24 22:17:13 | 9640ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-23 22:01:16 | 3200ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-15 20:14:05 | 4635ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-14 14:43:33 | 1587ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-27 12:15:12 | 10444ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-26 11:56:24 | 1982ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-15 20:14:10 | 1204ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-26 21:31:04 | 884ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-24 07:26:35 | 1156ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-17 16:44:59 | 2174ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |