| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.67.123 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.222.46 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 3600s | mail.guldring.dk | 185.113.11.10 | lambda.hostup.se | AS214640 Hostup AB |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3035::6815:437b | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:de2e | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.67.123,172.67.222.46 ech=AEX+DQBBzAAgACDHpwnbqQRrQxFsGzA/yaOSD5TTc2/1Vd5JMCQghbIcfwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3035::6815:437b,2606:4700:3037::ac43:de2e |
| TXT Record |
|---|
| v=spf1 mx include:spf.hostup.se ~all |
| Policy | Record (guldring.dk) |
|---|---|
| ~all (soft fail) | v=spf1 mx include:spf.hostup.se ~all |
| Policy | Record (_dmarc.guldring.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.guldring.dk | 5boVdHcL9hkqOnwvE-i_5bPpPFh8TKpheLOmeQc97Qw |
| TXT | _acme-challenge.guldring.dk | wpgTVxiVYj3scG_KtjSZ2PFyP6dd9-LuBceAzwH-iEQ |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✓ Found |
| Flags | unsigned answer |
| Field | Value |
|---|---|
| Serial | 2413645892 |
| Primary NS (MNAME) | primary.ns.hostup.se |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-08-31 17:49:19 | 645ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-30 10:34:49 | 1410ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-29 01:26:50 | 746ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-27 22:58:15 | 765ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-26 20:12:46 | 1213ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-26 07:14:16 | 968ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-25 02:07:12 | 8552ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-24 00:37:45 | 2854ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-22 20:48:26 | 1269ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-21 20:38:54 | 1482ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-20 20:30:07 | 5054ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-19 19:08:34 | 4983ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-18 19:06:59 | 2912ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-16 15:18:06 | 16739ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-15 10:41:18 | 3400ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-13 23:26:31 | 912ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-11 00:59:45 | 760ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-10 00:21:54 | 2474ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-07 13:26:24 | 1075ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-26 02:39:53 | 1029ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-21 18:13:14 | 785ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-07-18 11:55:19 | 4928ms | 2 NS 2 A 0 MX | 🔓 Insecure | View |
| 2026-06-29 17:49:05 | 691ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-23 19:42:47 | 1172ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-22 13:15:07 | 888ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |