school-data.com - robtex.com
school-data.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.129.150.236🇯🇵 IDC210.129.128.0/19 Frontier Inc. | ||||||
| NS | sv.school-data.com ⭐ | ||||||
| A | 61.206.47.240🇯🇵 IDC61.206.32.0/20 Frontier Inc. | ||||||
| NS | ns2.atworks.co.jp | ||||||
| A | 202.221.143.11🇯🇵 IIJ-AS202.221.0.0/16 IIJ IPv4 BLOCK ( AS2497 ) | ||||||
| PTR | ns2.atworks.co.jp | ||||||
| MX | sv.school-data.com ⭐ | ||||||
| A | 61.206.47.240🇯🇵 IDC61.206.32.0/20 Frontier Inc. | ||||||
| TXT | v=spf1 +ip4:61.206.47.240 ~all | ||||||
| SOA | sv.school-data.compostmaster@school-data.com 2023-06-27 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774371157 | ||||||
Subdomains
sv.school-data.com |
Same first word
school-data.com |
school-data.co.jp |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns2.atworks.co.jp2015-08-06 → 2026-03-24 · 2 obs
● 2026-03-24 17:19:10
●NSsv.school-data.com2015-08-06 → 2026-03-24 · 2 obs
● 2026-03-24 17:19:10
●MXsv.school-data.com2015-08-06 → 2026-03-24 · 2 obs
● 2026-03-24 17:19:10
●A210.129.150.2362026-02-18 → 2026-03-24 · 3 obs
● 2026-02-18 20:18:46
● 2026-03-24 17:19:10
○A61.206.47.2402015-08-06 → 2017-02-17 · 4 obs
● 2017-02-17 18:18:56
○ 2026-02-18 20:18:46
○ 2026-03-24 17:19:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net... | - |
| school-data.com | ns2.atworks.co.jp, sv.school-data.com | 1 record |
✅ Authoritative Response
Server:61.206.47.240
NS records: ns2.atworks.co.jp, sv.school-data.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for school-data.com (unsigned zone)
⏱️ Timing
Total: 1059ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.129.150.236 |
| NS | 2 | sv.school-data.com, ns2.atworks.co.jp |
| MX | 1 | sv.school-data.com (pri: 10) |
| TXT | 1 | v=spf1 +ip4:61.206.47.240 ~all |
| SOA | 1 | sv.school-data.com postmaster.school-dat |
📌 Glue Records Collected
Total: 1
In-bailiwick: 1 (sv.school-data.com)
Analysis
Hierarchy
The parent of sv.school-data.com is school-data.com.
IP Addresses
school-data.com points to a single IP: 210.129.150.236.
Other host names, such as proxyservice02.at-link.ad.jp, share IP numbers with school-data.com.
Name Servers
Two name servers sv.school-data.com and ns2.atworks.co.jp handle delegation for school-data.com.
school-data.com partially shares name servers with other domains; examples include fpo.bz, c303.net, kurumi.net, i-music.info and webrootking.net.
These name servers are commonly used alongside okpit.inet-dns.com, ns.webeyes.ne.jp, sv.gateau.jp, ns.40net.co.jp, ns01.ddstd.co.jp, ns.iamdn.co.jp, ns2.webeyes.ne.jp, ns.weblite.jp, ns.at-link.ad.jp and sv.joy-orz.com.
Host names with one IP number: The host name sv.school-data.com points to 61.206.47.240 and the host name ns2.atworks.co.jp points to 202.221.143.11.
Mail Servers
school-data.com is handled by a single mail server, sv.school-data.com.
school-data.com uses the same mail server setup as other domains, for example sv.school-data.com.