| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 104.21.75.134 | 300s | — | AS13335 | Cloudflare, Inc. | 104.21.0.0/17 | — | — |
| 172.67.177.74 | 300s | — | AS13335 | Cloudflare, Inc. | 172.67.128.0/17 | — | — |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 104.21.75.134 |
| IPv6 Address | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 2606:4700:3032::6815:4b86 | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| 2606:4700:3037::ac43:b14a | 300s | — | AS13335 | Cloudflare, Inc. | 2606:4700:3000:0:0:0:0:0/42 | — | — |
| Priority | Target | SvcParams |
|---|---|---|
| 1 service | . | alpn="h3,h2" ipv4hint=104.21.75.134,172.67.177.74 ech=AEX+DQBB+AAgACCFBPwbjU5UrdNJEeKUJW3Qf1sGzWhWWE3pGc3d8vU1DAAEAAEAAQASY2xvdWRmbGFyZS1lY2guY29tAAA= ipv6hint=2606:4700:3032::6815:4b86,2606:4700:3037::ac43:b14a |
| TXT Record |
|---|
| ms=ms5230657 |
| v=spf1 include:_spf.xtracon.dk include:_spf.centerasecurity.dk include:spf.mailanyone.net mx a -all |
| Policy | Record (sanktandreasbibliotek.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.xtracon.dk include:_spf.centerasecurity.dk include:spf.mailanyone.net mx a -all |
| Service / Owner | Type | Cert association |
|---|---|---|
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx1-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| SMTP _25._tcp.mx2-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | D4C349E7B72F5CF4A9CEA358F98947C2… |
| SMTP _25._tcp.mx3-dk.centerasecurity.dk | DANE-EE · SPKI · SHA-256 | 56315B43B892E9AEE184919EC6A5821C… |
| 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 | 2410668278 |
| Primary NS (MNAME) | ajay.ns.cloudflare.com |
| Responsible (RNAME) | dns@cloudflare.com |
| Refresh | 10000s |
| Retry | 2400s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 1800s |
| Scanned At | Duration | Records | DNSSEC | |
|---|---|---|---|---|
| 2026-07-29 13:50:17 | 1531ms | 2 NS 2 A 3 MX | 🔓 Insecure | View |
| 2026-07-17 00:50:44 | 9556ms | 2 NS 2 A 3 MX | 🔓 Insecure | View |
| 2026-06-25 16:30:24 | 1234ms | 2 NS 2 A 3 MX | 🔓 Insecure | View |
| 2026-06-23 21:00:26 | 1131ms | 0 NS 0 A 0 MX | ❓ Unknown | View |
| 2026-06-18 03:11:20 | 1175ms | 2 NS 2 A 3 MX | 🔓 Insecure | View |