i-gotu.jp - robtex.com
i-gotu.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.120.42.203🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | ns21.prontobb.net | ||||||
| NS | ns21.prontobb.net ⭐ | ||||||
| A | 153.120.42.203🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | ns21.prontobb.net | ||||||
| NS | dns2.prontonet.ne.jp | ||||||
| A | 162.43.29.206🇯🇵 XSERVER-AS162.43.0.0/17 XSERVER Inc. | ||||||
| PTR | x162-43-29-206.static.xvps.ne.jp | ||||||
| MX | mail.i-gotu.jp ⭐ | ||||||
| A | 153.120.42.203🇯🇵 SAKURA-A153.120.0.0/17 (2/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | ns21.prontobb.net | ||||||
| TXT | google-site-verification=1VOOxlj_P7H-VkbEUwQN5CMRSFy07zyGskTCWV0LZnU | ||||||
| TXT | v=spf1 +ip4:153.120.42.203 +a +mx +a:ns21.prontobb.net ~all | ||||||
| TXT | google-site-verification=UJIF967YbKjxKav0F7wiY9QxIQMqI-9r-KB_gU_Tuhc | ||||||
| SOA | ns21.prontobb.netns21\@webmaster.prontonet.co.jp 2026-04-11 #2 | ||||||
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=1778583603 | ||||||
Subdomains
mail.i-gotu.jp |
Same first word
i-gotu.jp |
Similar names
DNS History
8 records (4 active, 4 former)
○NSdns1.prontonet.ne.jp2015-08-11 → 2017-02-18 · 4 obs
● 2017-02-18 21:05:38
○ 2026-03-28 04:34:40
○ 2026-05-12 11:27:52
●NSdns2.prontonet.ne.jp2026-03-28 → 2026-05-12 · 3 obs
● 2026-03-28 04:34:40
● 2026-05-12 11:27:52
○NSns1.prontobb.net2015-08-11 → 2017-02-18 · 4 obs
● 2017-02-18 21:05:38
○ 2026-03-28 04:34:40
○ 2026-05-12 11:27:52
●NSns21.prontobb.net2026-03-28 → 2026-05-12 · 3 obs
● 2026-03-28 04:34:40
● 2026-05-12 11:27:52
●MXmail.i-gotu.jp2026-03-28 → 2026-05-12 · 3 obs
● 2026-03-28 04:34:40
● 2026-05-12 11:27:52
○MXns1.i-gotu.jp2015-08-11 → 2017-02-18 · 4 obs
● 2017-02-18 21:05:38
○ 2026-03-28 04:34:40
○ 2026-05-12 11:27:52
●A153.120.42.2032026-03-28 → 2026-05-12 · 3 obs
● 2026-03-28 04:34:40
● 2026-05-12 11:27:52
○A210.239.8.1552015-08-11 → 2017-02-18 · 4 obs
● 2017-02-18 21:05:38
○ 2026-03-28 04:34:40
○ 2026-05-12 11:27:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| i-gotu.jp | dns2.prontonet.ne.jp, ns21.prontobb.net | 1 record |
✅ Authoritative Response
Server:153.120.42.203
NS records: dns2.prontonet.ne.jp, ns21.prontobb.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for i-gotu.jp (unsigned zone)
⏱️ Timing
Total: 1176ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.120.42.203 |
| NS | 2 | dns2.prontonet.ne.jp, ns21.prontobb.net |
| MX | 1 | mail.i-gotu.jp (pri: 10) |
| TXT | 3 | v=spf1 +ip4:153.120.42.203 +a +mx +a:ns2, google-site-verification=1VOOxlj_P7H-Vkb... |
| SOA | 1 | ns21.prontobb.net ns21\.webmaster.pronto |
📌 Glue Records Collected
Total: 1
Out-of-bailiwick: 1 (dns2.prontonet.ne.jp)
Analysis
Hierarchy
i-gotu.jp is the parent of mail.i-gotu.jp.
IP Addresses
i-gotu.jp points to a single IP number: 153.120.42.203.
other host names for instance mail.gondaira.co.jp, niigata-matsuri.com, kawahara-gk.co.jp, ns2.hokensystem.co.jp and mail.i-gotu.jp share IP numbers with i-gotu.jp.
Name Servers
i-gotu.jp is delegated to two name servers: ns21.prontobb.net and dns2.prontonet.ne.jp.
i-gotu.jp shares the same name server setup as other domains, for example prontonet.tv, ns-hd.co.jp, niigata-matsuri.com, kawahara-gk.co.jp and mentuu.co.jp.
i-gotu.jp at least partially shares name servers with other domains, for instance air.ac.jp, njc-web.net, sakaguchinet.com, koryoku.or.jp and solumediage.com.
These name servers are often used with ns26.prontobb.net and ns25.prontobb.net.
Host names with one IP number:
The host ns21.prontobb.net points to 153.120.42.203 and the host dns2.prontonet.ne.jp points to 162.43.29.206.
Mail Servers
i-gotu.jp is handled by a single mail server, mail.i-gotu.jp.
Host name mail.i-gotu.jp points to IP address 153.120.42.203.