i-classmate.jp - robtex.com
i-classmate.jp
jp
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | z.dns.jp ⭐ | ||||||
| NS | a.dns.jp | ||||||
| NS | b.dns.jp | ||||||
| NS | c.dns.jp | ||||||
| NS | d.dns.jp | ||||||
| NS | e.dns.jp | ||||||
| NS | f.dns.jp | ||||||
| NS | g.dns.jp | ||||||
| NS | h.dns.jp | ||||||
| SOA | z.dns.jproot@dns.jp serial=1771290902 | ||||||
Up
mail.i-classmate.jp |
Same first word
i-classmate.jp |
DNS History
6 records (6 active, 0 former)
●NSns-1038.awsdns-01.org2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 12:42:34
●NSns-2031.awsdns-61.co.uk2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 12:42:34
●NSns-479.awsdns-59.com2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 12:42:34
●NSns-559.awsdns-05.net2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 12:42:34
●MXmail.i-classmate.jp2026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 12:42:34
●A52.193.121.1552026-02-28 → 2026-02-28 · 2 obs
● 2026-02-28 12:42:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| i-classmate.jp | ns-2031.awsdns-61.co.uk, ns-1038.awsdns-01.org, ns-479.awsdns-59.com, ns-559.awsdns-05.net | - |
✅ Authoritative Response
Server: 205.251.196.14
NS records: ns-2031.awsdns-61.co.uk, ns-1038.awsdns-01.org, ns-479.awsdns-59.com, ns-559.awsdns-05.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for i-classmate.jp (unsigned zone)
⏱️ Timing
Total: 762ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.193.121.155 |
| NS | 4 | ns-1038.awsdns-01.org, ns-2031.awsdns-61.co.uk... |
| MX | 1 | mail.i-classmate.jp (pri: 10) |
| TXT | 1 | v=spf1 ip4:163.44.176.12 ip6:2400:8500:1 |
| SOA | 1 | ns-2031.awsdns-61.co.uk awsdns-hostmaste |
AI analysis
i-classmate.jp is the parent of mail.i-classmate.jp.
i-classmate.jp resolves to one IP number: 52.193.121.155.
other host names including mail.i-classmate.jp, classmateline.com, www.k-homeroom.jp, ec2-52-193-121-155.ap-northeast-1.compute.amazonaws.com and www.a-cloud.co.jp share IP numbers with i-classmate.jp.
i-classmate.jp is delegated to four name servers: ns-479.awsdns-59.com, ns-559.awsdns-05.net, ns-1038.awsdns-01.org and ns-2031.awsdns-61.co.uk.
i-classmate.jp at least partially shares name servers with other domains, for instance dealerpaymentsolutions.com, davkodi.com, treasure.run, cegeneric.com and leafalpha.net.
These name servers are commonly used alongside ns1-24-ca-central-1.ec2-rdns.amazonaws.com, ns2-24-ca-central-1.ec2-rdns.amazonaws.com, ns3-24-ca-central-1.ec2-rdns.amazonaws.com, ns4-24-ca-central-1.ec2-rdns.amazonaws.com, ns-1749.awsdns-26.co.uk, ns-943.awsdns-53.net and ns-1390.awsdns-45.org.
Host names with two IP numbers:
ns-479.awsdns-59.com points to 2600:9000:5301:df00::1 and 205.251.193.223; ns-559.awsdns-05.net points to 2600:9000:5302:2f00::1 and 205.251.194.47; ns-1038.awsdns-01.org points to 2600:9000:5304:e00::1 and 205.251.196.14; ns-2031.awsdns-61.co.uk points to 2600:9000:5307:ef00::1 and 205.251.199.239.
i-classmate.jp is handled by a single mail server, mail.i-classmate.jp.
mail.i-classmate.jp resolves to two IP numbers: 2400:8500:1301:162::12:1 and 52.193.121.155.