acs21.com - robtex.com
acs21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 210.131.236.210🇯🇵 GMOOSK-NET210.131.236.0/24 GMO Internet Group, Inc. Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | www12.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 | mx12.gmoserver.jp ⭐ | ||||||
| A | 210.131.236.213🇯🇵 GMOOSK-NET210.131.236.0/24 GMO Internet Group, Inc. Cerulean Tower, 11F Sakuragaokacho-26-1 Shibuya-ku, Tokyo 150-8512, Japan | ||||||
| PTR | mx12.gmoserver.jp | ||||||
| TXT | v=spf1 include:spf12.gmoserver.jp ~all | ||||||
| SOA | dns01.gmoserver.jphostmaster@acs21.com 2021-12-10 #4 | ||||||
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=1771291435 | ||||||
Same first word
acs21.com |
Similar names
DNS History
5 records (4 active, 1 former)
●NSdns01.gmoserver.jp2015-06-20 → 2026-03-18 · 2 obs
● 2026-03-18 17:36:24
●NSdns02.gmoserver.jp2015-06-20 → 2026-03-18 · 2 obs
● 2026-03-18 17:36:24
●MXmx12.gmoserver.jp2015-06-20 → 2026-03-18 · 2 obs
● 2026-03-18 17:36:24
○A157.7.218.1762015-06-20 → 2017-08-30 · 3 obs
● 2017-08-30 22:40:28
○ 2026-03-18 17:36:24
●A210.131.236.2102026-03-18 → 2026-03-18 · 2 obs
● 2026-03-18 17:36:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, m.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net... | - |
| acs21.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 acs21.com (unsigned zone)
⏱️ Timing
Total: 1191ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 210.131.236.210 |
| NS | 2 | dns01.gmoserver.jp, dns02.gmoserver.jp |
| MX | 1 | mx12.gmoserver.jp (pri: 10) |
| TXT | 1 | v=spf1 include:spf12.gmoserver.jp ~all |
| SOA | 1 | dns01.gmoserver.jp hostmaster.acs21.com |
Analysis
IP Addresses
acs21.com points to IP number 210.131.236.210.
For instance, other host names gex4128osaka.com, www.musicoms.com, wrynex.net, kuma.vc and gn-tec.com share IP numbers with acs21.com.
Name Servers
acs21.com is delegated to two name servers: dns01.gmoserver.jp and dns02.gmoserver.jp.
acs21.com uses the same name server setup as other domains such as osiix.com, ww-consultants.com, daishinhome.com, keeema.com and moep.co.jp.
Host names with one IP number:
dns01.gmoserver.jp points to: 157.7.33.81.
dns02.gmoserver.jp points to: 157.7.34.81.
Mail Servers
acs21.com is handled by a single mail server, mx12.gmoserver.jp.
acs21.com shares the same mail server setup as other domains, for instance amt-school.com, crosstech.tv, kz-factory.com, h-aga.com and sanko-sec.co.jp.
mx12.gmoserver.jp points to a single IP: 210.131.236.213.