DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
atena.co.jp runs on Amazon AWS, with email via Microsoft 365.
- Hosting network
- Amazon AWSAS16509Amazon AWS
- Managed DNS
- Self-hosted / other
- Microsoft 365
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 6,062,184 other sites on Amazon AWS. Stable here since we started watching (Nov 1, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for atena.co.jp
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| atena.co.jp | TXT | 0 | v=spf1 +ip4:61.117.139.192/26 +ip4:61.117.130.0/25 +ip4:150.60.171.253 +ip4:202.238.250.45 +include:spf.protection.outlook.com +include:mail-spf.ferret-one.com +include:sendgrid.net +include:crmstyle.com +include:spf.mta.hdems.com ~all | |
| atena.co.jp | MX | 0 | atena-co-jp.mail.protection.outlook.com | |
| atena.co.jp | A | 0 | 3.33.186.173 | |
| atena.co.jp | A | 0 | 15.197.172.243 | |
| atena.co.jp | SOA | 300 | ns01.gn5.co.jp informail.nvg.gn5.co.jp 2026102902 300 300 300 300 | |
| atena.co.jp | NS | 0 | ns02.gn5.co.jp | |
| atena.co.jp | NS | 0 | ns01.gn5.co.jp | |
| www.atena.co.jp | A | 0 | 3.33.186.173 | |
| www.atena.co.jp | A | 0 | 15.197.172.243 |
Get alerted the moment atena.co.jp's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch atena.co.jp continuously, notifying you the moment anything moves across all three signals:

Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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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