DNS Record Lookup
Look up DNS records including A, AAAA, MX, NS, SOA, CNAME, TXT, and CAA records for any domain
Hosting & Network
jcs-idc.jp runs on AS9621, with email configured.
- Hosting network
- AS9621AS9621
- Managed DNS
- Self-hosted / other
- Configured
- IPv6 (AAAA)
- Not enabled
- CAA pinning
- None
Sits alongside 6 other sites on AS9621. Stable here since we started watching (Aug 13, 2026).
The apex and www are the same hosting — the apex via A records.
DNS Records for jcs-idc.jp
| Hostname | Type | TTL | Priority | Content |
|---|---|---|---|---|
| jcs-idc.jp | NS | 0 | ns1.jcs-idc.jp | |
| jcs-idc.jp | NS | 0 | ns2.jcs-idc.jp | |
| jcs-idc.jp | A | 0 | 211.120.239.238 | |
| jcs-idc.jp | SOA | 86400 | ns1.jcs-idc.jp root.ns1.jcs-idc.jp 2026070201 3600 900 604800 86400 | |
| jcs-idc.jp | TXT | 0 | v=spf1 a:mail.jcs-idc.jp +ip4:211.120.239.227 ~all | |
| jcs-idc.jp | TXT | 0 | google-site-verification=Fu7h6z6f9-WvvRxE8LUV19bqLK18E73v_4fJFCIiexQ | |
| jcs-idc.jp | MX | 0 | 10 | mail.jcs-idc.jp |
| www.jcs-idc.jp | A | 0 | 211.120.239.238 |
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 jcs-idc.jp
BetaAnswers use the live DNS records shown on this page. AI-generated — double-check anything important.
Get alerted the moment jcs-idc.jp's DNS changes
This page is today's snapshot. Turn on monitoring and we'll watch jcs-idc.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