| Nameserver | IP addresses | PTR | ASN / ISP |
|---|---|---|---|
| ns1.i80.dk | 87.52.104.155 | 0x5734689b.static.cust.fastspeed.dk | AS3292 TDC Holding A/S |
| ns2.i80.dk | 172.104.249.208 | 172-104-249-208.ip.linodeusercontent.com | AS63949 Akamai Connected Cloud |
| IP | TTL | PTR | ASN | ISP / Org | CIDR | Country | City |
|---|---|---|---|---|---|---|---|
| 87.52.104.155 | 3600s | 0x5734689b.static.cust.fastspeed.dk | AS3292 | TDC Holding A/S | 87.48.0.0/13 | 🇩🇰 Denmark | Copenhagen |
| Priority | TTL | Mail Server | IP addresses | PTR | ASN |
|---|---|---|---|---|---|
| 10 | 3600s | mail.i80.dk | 87.52.104.155 | 0x5734689b.static.cust.fastspeed.dk | AS3292 TDC Holding A/S |
| 20 | 3600s | smtp.i80.dk | 87.52.104.155 | 0x5734689b.static.cust.fastspeed.dk | AS3292 TDC Holding A/S |
| 90 | 3600s | ms.i80.dk | 139.162.159.140 | 139-162-159-140.ip.linodeusercontent.com | AS63949 Akamai Connected Cloud |
| Service | CNAME / IP |
|---|---|
| 🔷 Autodiscover | 87.52.104.155 |
| 🔶 Autoconfig | 87.52.104.155 |
| TXT Record |
|---|
| v=spf1 mx a ip4:87.52.104.155/32 ip4:139.162.159.140/32 -all |
| Policy | Record (kontakto.dk) |
|---|---|
| -all (hard fail) | v=spf1 mx a ip4:87.52.104.155/32 ip4:139.162.159.140/32 -all |
| Policy | Record (_dmarc.kontakto.dk) |
|---|---|
| p=none (monitor only) | v=DMARC1; p=none; rua=mailto:dmarc@i80.dk; ruf=mailto:dmarc@i80.dk; pct=100; aspf=r; adkim=r |
| Type | Name | Value |
|---|---|---|
| TXT | _acme-challenge.kontakto.dk | zRkqrBF-p5I6_NJ8Byepw84tMLzSUIa0SXF-grYP1gs |
| 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 | 2026082501 |
| Primary NS (MNAME) | ns1.i80.dk |
| Responsible (RNAME) | hostmaster@i80.dk |
| Refresh | 10800s |
| Retry | 3600s |
| Expire | 604800s |
| Minimum (neg-cache TTL) | 3600s |