21-i.com - robtex.com
21-i.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.131.236.230🇯🇵 GMOOSK-NET210.131.236.0/24 GMO Internet Group, Inc. Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | www2.gmoserver.jp | ||||||
| NS | dns01.gmoserver.jp ⭐ | ||||||
| A | 157.7.33.81🇯🇵 GMO-DNS157.7.33.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | dns01.gmoserver.jp | ||||||
| NS | dns02.gmoserver.jp | ||||||
| A | 157.7.34.81🇯🇵 GMO-DNS157.7.34.0/24 GMO Internet,inc. Network-Team. | ||||||
| PTR | dns02.gmoserver.jp | ||||||
| MX | mx2.gmoserver.jp ⭐ | ||||||
| A | 210.131.236.233🇯🇵 GMOOSK-NET210.131.236.0/24 GMO Internet Group, Inc. Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | mx2.gmoserver.jp | ||||||
| TXT | v=spf1 include:spf2.gmoserver.jp ~all | ||||||
| SOA | dns01.gmoserver.jphostmaster@21-i.com 2011-02-27 #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=1777007261 | ||||||
Same first word
21-i.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSdns01.gmoserver.jp2015-08-03 → 2026-04-24 · 2 obs
● 2026-04-24 05:33:40
●NSdns02.gmoserver.jp2015-08-03 → 2026-04-24 · 2 obs
● 2026-04-24 05:33:40
●MXmx2.gmoserver.jp2015-08-03 → 2026-04-24 · 2 obs
● 2026-04-24 05:33:40
●A210.131.236.2302026-04-20 → 2026-04-24 · 3 obs
● 2026-04-20 06:22:36
● 2026-04-24 05:33:40
○A210.172.183.492015-08-03 → 2026-03-06 · 4 obs
● 2026-03-06 22:16:40
○ 2026-04-20 06:22:36
○ 2026-04-24 05:33:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 21-i.com | dns01.gmoserver.jp, dns02.gmoserver.jp | - |
✅ Authoritative Response
Server:157.7.33.81
NS records: dns01.gmoserver.jp, dns02.gmoserver.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 21-i.com (unsigned zone)
⏱️ Timing
Total: 1129ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.131.236.230 |
| NS | 2 | dns01.gmoserver.jp, dns02.gmoserver.jp |
| MX | 1 | mx2.gmoserver.jp (pri: 10) |
| TXT | 1 | v=spf1 include:spf2.gmoserver.jp ~all |
| SOA | 1 | dns01.gmoserver.jp hostmaster.21-i.com |
Analysis
IP Addresses
21-i.com maps to IP address 210.131.236.230.
Other host names, for instance delightdesign.co.jp, rousai.net, kyobasi.co.jp, gfl.co.jp and ysworks.com share IP numbers with 21-i.com.
Name Servers
Two name servers dns01.gmoserver.jp and dns02.gmoserver.jp are delegated to 21-i.com.
21-i.com uses the same name server configuration as other domains, such as prix-jp.com, kaze-taxi.com, lumisu.com, rita-cure.com and potenhit.net.
21-i.com at least partially shares name servers with other domains, including gainweb.jp, ageo-chintai.com and fujisawajisho.com.
Host names with a single IP address:
dns01.gmoserver.jp points to 157.7.33.81
dns02.gmoserver.jp points to 157.7.34.81
Mail Servers
21-i.com is handled by a single mail server, mx2.gmoserver.jp.
21-i.com shares the same mail server setup as other domains, including mike-museum.com, genkya.com, miyagino.shojin.net, g-park.jp and hige-girl.com.
21-i.com shares some mail servers with other domains, for instance story-arts-sciences.com and hougiken.com.
mx2.gmoserver.jp points to one IP number: 210.131.236.233.