edus.jp - robtex.com
edus.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 219.94.213.21🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | 21.213.94.219.static.www216b.sakura.ne.jp | ||||||
| NS | master.dns.ne.jp ⭐ | ||||||
| A | 210.224.172.18🇯🇵 SAKURA-C210.224.160.0/19 (1/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | master.dns.ne.jp | ||||||
| NS | ns1.dns.ne.jp | ||||||
| A | 61.211.236.1🇯🇵 SAKURA-B61.211.236.0/24 (4/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | ns1.dns.ne.jp | ||||||
| NS | ns2.dns.ne.jp | ||||||
| A | 133.167.21.1🇯🇵 SAKURA-C133.167.21.0/24 (OSAKA) SAKURA Internet // WEST JAPAN BACKBONE Grand Front Osaka Tower A 35F, 4-20 Ofukacho, Kita-ku, Osaka, Osaka 530-0011, Japan | ||||||
| PTR | ns2.dns.ne.jp | ||||||
| MX | edus.jp ⭐ | ||||||
| A | 219.94.213.21🇯🇵 SAKURA-C219.94.128.0/17 (3/OSAKA) SAKURA Internet // WEST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | 21.213.94.219.static.www216b.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www216b.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2026-03-30 #16 | ||||||
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=1784262602 | ||||||
MX for
edus.jp |
Subdomains
meishu.edus.jp |
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●MXedus.jp2026-06-18 → 2026-07-17 · 2 obs
● 2026-07-17 04:54:32
●A219.94.213.212026-06-18 → 2026-07-17 · 2 obs
● 2026-07-17 04:54:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| edus.jp | ns1.dns.ne.jp, ns2.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for edus.jp (unsigned zone)
⏱️ Timing
Total: 2246ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 219.94.213.21 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | edus.jp (pri: 10) |
| TXT | 1 | v=spf1 a:www216b.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1.dns.ne.jp, ns2.dns.ne.jp)
Analysis
Hierarchy
edus.jp serves as the parent of meishu.edus.jp.
Mail Server Role
edus.jp handles its own mail, functioning as its own mail server.
IP Addresses
edus.jp resolves to just one IP address, 219.94.213.21.
21.213.94.219.static.www216b.sakura.ne.jp, you-go.sakura.ne.jp and meishu.edus.jp are examples of other host names that share IP numbers with edus.jp.
Name Servers
Three name servers are authoritative for edus.jp: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
edus.jp has at least partial name server overlap with other domains, such as tls-kenko-emi.sakura.ne.jp, fishingrods.jp, kyoei-co.jp and two others.
Three hostnames, one IP address apiece: master.dns.ne.jp resolves to 210.224.172.18, ns1.dns.ne.jp resolves to 61.211.236.1 and ns2.dns.ne.jp resolves to 133.167.21.1.
Mail Servers
edus.jp is served by just one mail server: edus.jp.
There is one IP number for edus.jp: 219.94.213.21.