DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
osy.co.jp runs on AS4725, with email configured.
- Hosting network
- AS4725AS4725
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 127 other sites on AS4725. Stable here since we started watching (Jul 16, 2026).
The apex and www are the same hosting — the apex via A records, www via a CNAME to osy.co.jp.
DNS Records for osy.co.jp
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| osy.co.jp | NS | 0 | ns.osy.co.jp | |
| osy.co.jp | NS | 0 | shns2.ultina.jp | |
| osy.co.jp | TXT | 0 | v=spf1 +a +mx include:ultina.jp ~all | |
| osy.co.jp | SOA | 10800 | shns2.ultina.jp s-akao.ma.osy.co.jp 1779086836 10800 3600 1209600 10800 | |
| osy.co.jp | MX | 0 | 10 | d501790.a.ess.au.barracudanetworks.com |
| osy.co.jp | MX | 0 | 20 | d501790.b.ess.au.barracudanetworks.com |
| osy.co.jp | A | 0 | 218.40.195.224 | |
| www.osy.co.jp | TXT | 0 | v=spf1 +a +mx include:ultina.jp ~all | |
| www.osy.co.jp | SOA | 10800 | shns2.ultina.jp s-akao.ma.osy.co.jp 1779086836 10800 3600 1209600 10800 | |
| www.osy.co.jp | NS | 0 | shns2.ultina.jp | |
| www.osy.co.jp | NS | 0 | ns.osy.co.jp | |
| www.osy.co.jp | CNAME | 0 | osy.co.jp | |
| www.osy.co.jp | A | 0 | 218.40.195.224 | |
| www.osy.co.jp | MX | 0 | 20 | d501790.b.ess.au.barracudanetworks.com |
| www.osy.co.jp | MX | 0 | 10 | d501790.a.ess.au.barracudanetworks.com |
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About DNS Records
DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:
- SOA (Start of Authority) - Contains administrative information about the zone
- NS (Nameserver) - Specifies authoritative nameservers for the domain
- A (Address) - Maps a domain to an IPv4 address
- AAAA - Maps a domain to an IPv6 address
- CNAME (Canonical Name) - Creates an alias pointing to another domain
- MX (Mail Exchange) - Specifies mail servers for the domain