| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns.semaphor.dk | 195.190.25.50 | ns.semaphor.dk | AS201697 Semaphor |
| ns2.semaphor.dk | 85.235.240.108 | ns2.semaphor.dk | AS3308 Norlys Digital A/S |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 38400s | frederikmadsen-dk.mx1.comendosystems.com | 192.162.219.255 2a01:77c0:1619:4102:a81b:80d0:e56c:edc0 |
mx41.electric.net gw2-1535.security.comendo.com |
AS16509 Amazon.com, Inc. AS16509 Amazon.com, Inc. |
| 20 | 38400s | frederikmadsen-dk.mx2.comendosystems.net | 192.162.219.155 | mx41.electric.net | AS16509 Amazon.com, Inc. |
| TXT Record |
|---|
| v=spf1 include:_spf.semaphor.dk -all |
| Policy | Record (frederikmadsen.dk) |
|---|---|
| -all (hard fail) | v=spf1 include:_spf.semaphor.dk -all |
| Policy | Record (_dmarc.frederikmadsen.dk) |
|---|---|
| p=quarantine | v=DMARC1; p=quarantine |
| Type | Name | Value |
|---|---|---|
| CNAME | _acme-challenge.frederikmadsen.dk | frederikmadsen.dk.acme.semaphor.dk |
| Check | Result |
|---|---|
| Validation Status | 🔓 Insecure |
| AD Flag (resolver validates) | ✗ Not set |
| DS Record | ✗ Not found |
| DNSKEY Record | ✗ Not found |
| Flags | resolution failed: ncache nxrrset |
| Field | Value |
|---|---|
| Serial | 2025082700 |
| Primary NS (MNAME) | ns.semaphor.dk |
| Responsible (RNAME) | hostmaster@semaphor.dk |
| Refresh | 3600s |
| Retry | 3600s |
| Expire | 2419200s |
| Minimum (neg-cache TTL) | 38400s |