ritsu-net.com - robtex.com
ritsu-net.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 202.181.99.77🇯🇵 SAKURA-B202.181.96.0/20 (6/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www357.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 | ritsu-net.com ⭐ | ||||||
| A | 202.181.99.77🇯🇵 SAKURA-B202.181.96.0/20 (6/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-15 Kyutaro-cho, Chuo Osaka 541-0056, Japan | ||||||
| PTR | www357.sakura.ne.jp | ||||||
| TXT | v=spf1 a:www357.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2016-12-01 #21 | ||||||
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=1774464122 | ||||||
MX for
ritsu-net.com |
Same first word
ritsu-net.com |
Similar names
DNS History
9 records (5 active, 4 former)
●NSmaster.dns.ne.jp2017-02-06 → 2026-03-25 · 3 obs
● 2017-02-06 05:12:56
● 2026-03-25 19:01:24
●NSns1.dns.ne.jp2017-02-06 → 2026-03-25 · 3 obs
● 2017-02-06 05:12:56
● 2026-03-25 19:01:24
●NSns2.dns.ne.jp2017-02-06 → 2026-03-25 · 3 obs
● 2017-02-06 05:12:56
● 2026-03-25 19:01:24
○NSns31.worldnic.com2015-06-04 → 2016-04-16 · 4 obs
● 2016-04-16 14:02:20
○ 2017-02-06 05:12:56
○ 2026-03-25 19:01:24
○NSns32.worldnic.com2015-06-04 → 2016-04-16 · 4 obs
● 2016-04-16 14:02:20
○ 2017-02-06 05:12:56
○ 2026-03-25 19:01:24
○MXinbound.ritsu-net.com.netsolmail.net2015-06-04 → 2016-04-16 · 4 obs
● 2016-04-16 14:02:20
○ 2017-02-06 05:12:56
○ 2026-03-25 19:01:24
●MXritsu-net.com2017-02-06 → 2026-03-25 · 3 obs
● 2017-02-06 05:12:56
● 2026-03-25 19:01:24
●A202.181.99.772017-02-06 → 2026-03-25 · 3 obs
● 2017-02-06 05:12:56
● 2026-03-25 19:01:24
○A206.188.192.2512015-06-04 → 2016-04-16 · 4 obs
● 2016-04-16 14:02:20
○ 2017-02-06 05:12:56
○ 2026-03-25 19:01:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| ritsu-net.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ 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 ritsu-net.com (unsigned zone)
⏱️ Timing
Total: 1136ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 202.181.99.77 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | ritsu-net.com (pri: 10) |
| TXT | 1 | v=spf1 a:www357.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Mail Server Role
ritsu-net.com serves as the mail server for ritsu-net.com.
IP Addresses
ritsu-net.com resolves to one IP number: 202.181.99.77.
Other host names, for instance tsec.co.jp, syscli.com, www357.sakura.ne.jp, lucky-misora.net and fountains.sakura.ne.jp share IP numbers with ritsu-net.com.
Name Servers
ritsu-net.com is delegated to three name servers: master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
ritsu-net.com at least partially shares name servers with other domains, including spacelab-system.jp, come-net.co.jp, e-nikka.com, jcm.bz and derosa.jp.
These name servers are commonly used with dns.sakura.ad.jp.
Host names with a single IP:
master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1.
Mail Servers
ritsu-net.com is handled by a single mail server, ritsu-net.com.
Host name ritsu-net.com resolves to a single IP: 202.181.99.77.