rta-school.com - robtex.com
rta-school.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 153.127.120.140🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | 140.120.127.153.static.www15412m.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 | rta-school.com ⭐ | ||||||
| A | 153.127.120.140🇯🇵 SAKURA-A153.127.0.0/17 (ISHIKARI) SAKURA Internet // HOKKAIDO JAPAN BACKBONE Sakaisuji Honmachi Bldg. 9F 1-8-14 Minami-Honmachi, Chuo-ku Osaka 541-0054, Japan | ||||||
| PTR | 140.120.127.153.static.www15412m.sakura.ne.jp | ||||||
| TXT | google-site-verification=mlZZUzMzyepX-1Qh6AFJCg-7x0YizcT_Bq1I8Pg1pkM | ||||||
| TXT | v=spf1 a:www15412m.sakura.ne.jp mx ~all | ||||||
| SOA | master.dns.ne.jptech@sakura.ad.jp 2024-03-07 #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=1774805172 | ||||||
MX for
rta-school.com |
Subdomains
www.rta-school.com |
Same first word
rta-school.com |
Similar names
school-art.ru |
art-school.net |
art-school.de |
cahors-lot.com |
cool-trash.com |
art-school.biz |
art-school.ks.ua |
art-school.by |
art-school.co.jp |
art-school.cn |
art-school.co.uk |
cahors-lot.fr |
DNS History
11 records (5 active, 6 former)
●NSmaster.dns.ne.jp2026-02-21 → 2026-03-29 · 3 obs
● 2026-02-21 04:23:06
● 2026-03-29 17:37:30
●NSns1.dns.ne.jp2026-02-21 → 2026-03-29 · 3 obs
● 2026-02-21 04:23:06
● 2026-03-29 17:37:30
●NSns2.dns.ne.jp2026-02-21 → 2026-03-29 · 3 obs
● 2026-02-21 04:23:06
● 2026-03-29 17:37:30
○NSns4.cpi.ad.jp2016-12-20 → 2016-12-20 · 3 obs
○ 2026-02-21 04:23:06
○ 2026-03-29 17:37:30
○NSns5.cpi.ad.jp2016-12-20 → 2016-12-20 · 3 obs
○ 2026-02-21 04:23:06
○ 2026-03-29 17:37:30
●MXrta-school.com2026-02-21 → 2026-03-29 · 3 obs
● 2026-02-21 04:23:06
● 2026-03-29 17:37:30
○MXvlmx20.secure.ne.jp2016-12-20 → 2016-12-20 · 3 obs
○ 2026-02-21 04:23:06
○ 2026-03-29 17:37:30
○MXvlmx21.secure.ne.jp2016-12-20 → 2016-12-20 · 3 obs
○ 2026-02-21 04:23:06
○ 2026-03-29 17:37:30
○MXvlmx22.secure.ne.jp2016-12-20 → 2016-12-20 · 3 obs
○ 2026-02-21 04:23:06
○ 2026-03-29 17:37:30
○A150.60.25.362016-12-20 → 2016-12-20 · 3 obs
○ 2026-02-21 04:23:06
○ 2026-03-29 17:37:30
●A153.127.120.1402026-02-21 → 2026-03-29 · 3 obs
● 2026-02-21 04:23:06
● 2026-03-29 17:37:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| rta-school.com | ns1.dns.ne.jp, ns2.dns.ne.jp | - |
✅ Authoritative Response
Server:133.167.21.1
NS records: ns1.dns.ne.jp, ns2.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rta-school.com (unsigned zone)
⏱️ Timing
Total: 416ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 153.127.120.140 |
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 1 | rta-school.com (pri: 10) |
| TXT | 2 | google-site-verification=mlZZUzMzyepX-1Q, v=spf1 a:www15412m.sakura.ne.jp mx ~all |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
Analysis
Hierarchy
rta-school.com is the parent of www.rta-school.com.
Mail Server Role
For rta-school.com, the mail server is rta-school.com.
IP Addresses
rta-school.com resolves to one IP number: 153.127.120.140.
Other host names, for instance 140.120.127.153.static.www15412m.sakura.ne.jp, share IP numbers with rta-school.com.
Name Servers
rta-school.com is delegated to three name servers master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
rta-school.com at least partially shares name servers with other domains, for instance bokuhou.com, zuwai.jp, spnssystem.net, ryuman.biz and gembun.com.
Host names with one IP number: 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
rta-school.com is served by a single mail server, rta-school.com.
rta-school.com resolves to IP 153.127.120.140.