| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.5.19 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.132.191 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 0 | 300s | . Null MX — domain accepts no email (RFC 7505) | |||
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3031::ac43:84bf | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3032::6815:513 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.5.19,172.67.132.191 ech=AEX+DQBBzAAgACDHpwnbqQRrQxFsGzA/yaOSD5TTc2/1Vd5JMCQghbIcfwAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3031::ac43:84bf,2606:4700:3032::6815:513 |
| TXT Record |
|---|
| v=spf1 -all |
| Policy | Record (nanodegrees.dk) |
|---|---|
| -all (hard fail) | v=spf1 -all |
| Policy | Record (_dmarc.nanodegrees.dk) |
|---|---|
| p=reject | v=DMARC1; p=reject; rua=; ruf=; |
| 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 | 2413600658 |
| Primary NS (MNAME) | ingrid.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 17:49:51 | 8435ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-30 02:23:18 | 959ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-26 13:40:26 | 786ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-08-20 14:08:20 | 11347ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-27 09:06:07 | 704ms | 2 NS 2 A 1 MX | 🔓 Insecure | View |
| 2026-06-17 12:02:08 | 922ms | 2 NS 2 A 0 MX | 🔓 Insecure | View |