crystal-eizou.jp - robtex.com
crystal-eizou.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.777works.jp ⭐ | ||||||
| A | 42.125.253.82🇯🇵 TOKAI-NETWORK42.125.252.0/22 TOKAI-NET | ||||||
| PTR | dns1.777works.jp | ||||||
| NS | dns2.777works.jp | ||||||
| A | 20.222.71.25🇯🇵 Microsoft20.192.0.0/10 | ||||||
| PTR | dns2.777works.jp | ||||||
| MX | mail.crystal-eizou.jp ⭐ | ||||||
| A | 42.125.253.200🇯🇵 TOKAI-NETWORK42.125.252.0/22 TOKAI-NET | ||||||
| PTR | ws01.777works.jp | ||||||
| TXT | v=spf1 +a +mx +ip4:42.125.253.200 ~all | ||||||
| SOA | dns1.777works.jpinfo@777works.jp 2023-12-20 #1 | ||||||
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=1776167102 | ||||||
Subdomains
outlet.crystal-eizou.jp |
post.crystal-eizou.jp |
ns.crystal-eizou.jp |
ftp.crystal-eizou.jp |
stream2.crystal-eizou.jp |
stream.crystal-eizou.jp |
mailconfig.crystal-eizou.jp |
mail.crystal-eizou.jp |
Same first word
crystal-eizou.jp |
DNS History
5 records (3 active, 2 former)
●NSdns1.777works.jp2015-08-24 → 2026-04-14 · 2 obs
● 2026-04-14 12:01:08
●NSdns2.777works.jp2015-08-24 → 2026-04-14 · 2 obs
● 2026-04-14 12:01:08
●MXmail.crystal-eizou.jp2015-08-24 → 2026-04-14 · 2 obs
● 2026-04-14 12:01:08
○MXmg.drive.ne.jp2015-08-24 → 2016-09-19 · 4 obs
● 2016-09-19 23:43:26
○ 2016-10-01 05:53:34
○ 2026-04-14 12:01:08
○MXpost.crystal-eizou.jp2015-08-24 → 2016-09-19 · 4 obs
● 2016-09-19 23:43:26
○ 2016-10-01 05:53:34
○ 2026-04-14 12:01:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| crystal-eizou.jp | dns1.777works.jp, dns2.777works.jp | 2 records |
✅ Authoritative Response
Server:42.125.253.82
NS records: dns1.777works.jp, dns2.777works.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for crystal-eizou.jp (unsigned zone)
⏱️ Timing
Total: 937ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | dns2.777works.jp, dns1.777works.jp |
| MX | 1 | mail.crystal-eizou.jp (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:42.125.253.200 ~all |
| SOA | 1 | dns1.777works.jp info.777works.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns1.777works.jp, dns2.777works.jp)
Analysis
Hierarchy
crystal-eizou.jp is a parent of outlet.crystal-eizou.jp, post.crystal-eizou.jp, ns.crystal-eizou.jp, ftp.crystal-eizou.jp, stream2.crystal-eizou.jp and a few other host names.
Name Servers
crystal-eizou.jp is delegated to two name servers: dns1.777works.jp and dns2.777works.jp.
crystal-eizou.jp shares the same name server setup as sub000.222.125.153.in-addr.arpa, psinet.jp, ccc-c3.jp, 777works.jp and idi-infra.com.
Host names with a single IP:
dns1.777works.jp points to 42.125.253.82.
dns2.777works.jp points to 20.222.71.25.
Mail Servers
crystal-eizou.jp is handled by a single mail server, mail.crystal-eizou.jp.
mail.crystal-eizou.jp points to a single IP: 42.125.253.200.