DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
su-ken.co.jp runs on Amazon AWS, with email configured.
- Hosting network
- Amazon AWSAS16509Amazon AWS
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 4,999+ other sites on Amazon AWS.
Recently changed networks: AS23394 → AS16509 (as of Jul 23, 2026)
The apex and www are the same hosting — the apex via A records, www via a CNAME to s01.homepagine.com.
DNS Records for su-ken.co.jp
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| su-ken.co.jp | SOA | 86400 | kotetsu.alpha-lt.net postmaster.alpha-web.ne.jp 2026022808 10800 3600 604800 86400 | |
| su-ken.co.jp | TXT | 0 | v=spf1 ip4:157.205.202.0/24 ip4:157.205.203.128/25 ip4:216.230.250.0/24 ip4:216.230.251.0/24 ip4:216.230.252.0/24 ip4:216.230.254.0/24 ip4:157.205.123.224/28 ip4:157.205.123.240/28 ip4:157.205.248.64/26 ~all | |
| su-ken.co.jp | A | 0 | 52.4.33.130 | |
| su-ken.co.jp | MX | 0 | 10 | ampub02.alpha-mail.net |
| su-ken.co.jp | MX | 0 | 10 | ampub01.alpha-mail.net |
| su-ken.co.jp | MX | 0 | 10 | ampub03.alpha-mail.net |
| su-ken.co.jp | MX | 0 | 50 | ampub04.alpha-mail.net |
| su-ken.co.jp | NS | 0 | tsukuba.aics.ne.jp | |
| su-ken.co.jp | NS | 0 | kotetsu.alpha-lt.net | |
| su-ken.co.jp | NS | 0 | amdns03.alpha-mail.jp | |
| www.su-ken.co.jp | CNAME | 0 | s01.homepagine.com | |
| www.su-ken.co.jp | A | 0 | 52.4.33.130 |
What's up with DNS →
Our daily roundup of the most interesting DNS changes across the web — hosting and CDN migrations, network moves, and security-config shifts.
Ask about su-ken.co.jp
BetaAnswers use the live DNS records shown on this page. AI-generated — double-check anything important.
Get alerted the moment su-ken.co.jp's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch su-ken.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, DNSSEC, CNAME 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.
Free for your first domain: uptime, DNS, and certificate together. No credit card.
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