alpha-do.jp - robtex.com
alpha-do.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.90.183.11🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | c1.hpms1.jp | ||||||
| NS | ns1.value-domain.com ⭐ | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.52.161🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.value-domain.com | ||||||
| A | 172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.53.115🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | alpha-do.jp ⭐ | ||||||
| A | 183.90.183.11🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | c1.hpms1.jp | ||||||
| TXT | v=spf1 ip4:183.90.183.11 include:mxr.valueserver.jp ~all | ||||||
| SOA | ns1.value-domain.comhostmaster@alpha-do.jp 2020-08-26 #22 | ||||||
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=1774370702 | ||||||
MX for
alpha-do.jp |
Same first word
DNS History
9 records (4 active, 5 former)
○NSns01.telewave.ad.jp2015-08-10 → 2016-09-08 · 4 obs
● 2016-09-08 00:20:46
○ 2026-02-15 09:37:10
○ 2026-03-24 17:09:34
○NSns01.xaas.jp2015-08-10 → 2016-09-08 · 4 obs
● 2016-09-08 00:20:46
○ 2026-02-15 09:37:10
○ 2026-03-24 17:09:34
●NSns1.value-domain.com2026-02-15 → 2026-03-24 · 3 obs
● 2026-02-15 09:37:10
● 2026-03-24 17:09:34
●NSns2.value-domain.com2026-02-15 → 2026-03-24 · 3 obs
● 2026-02-15 09:37:10
● 2026-03-24 17:09:34
●MXalpha-do.jp2026-02-15 → 2026-03-24 · 3 obs
● 2026-02-15 09:37:10
● 2026-03-24 17:09:34
○MXsmtp1.xaas.jp2015-08-10 → 2016-09-08 · 4 obs
● 2016-09-08 00:20:46
○ 2026-02-15 09:37:10
○ 2026-03-24 17:09:34
○MXsmtp2.xaas.jp2015-08-10 → 2016-09-08 · 4 obs
● 2016-09-08 00:20:46
○ 2026-02-15 09:37:10
○ 2026-03-24 17:09:34
●A183.90.183.112026-02-15 → 2026-03-24 · 3 obs
● 2026-02-15 09:37:10
● 2026-03-24 17:09:34
○A210.128.29.602015-08-10 → 2016-09-08 · 4 obs
● 2016-09-08 00:20:46
○ 2026-02-15 09:37:10
○ 2026-03-24 17:09:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| alpha-do.jp | ns1.value-domain.com, ns2.value-domain.com | - |
✅ Authoritative Response
Server:172.64.52.161
NS records: ns1.value-domain.com, ns2.value-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for alpha-do.jp (unsigned zone)
⏱️ Timing
Total: 989ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.183.11 |
| NS | 2 | ns1.value-domain.com, ns2.value-domain.com |
| MX | 1 | alpha-do.jp (pri: 10) |
| TXT | 1 | v=spf1 ip4:183.90.183.11 include:mxr.val |
| SOA | 1 | ns1.value-domain.com hostmaster.alpha-do |
Analysis
Mail Server Role
alpha-do.jp serves as the mail server for alpha-do.jp.
IP Addresses
alpha-do.jp points to a single IP address: 183.90.183.11.
Other host names such as cafearu.net, topolino.net, 8700.jp, www.sa-mep.com and smtp.s-shigeji.com share IP numbers with alpha-do.jp.
Name Servers
alpha-do.jp is delegated to two name servers: ns1.value-domain.com and ns2.value-domain.com.
alpha-do.jp uses the same name server setup as other domains, including tkonet.biz, jtxts.com, tpower.jp, tro-ll.com and matsugaoka.net.
At least part of the name servers for alpha-do.jp are shared with other domains, for instance hitsbitsx.com, max-stone.jp, liqun123.com, paradishouse.jp and geturlinfo.com.
These name servers are commonly used together with the name servers ns3.value-domain.com, ns4.value-domain.com, ns5.value-domain.com, ns11.value-domain.com, ns12.value-domain.com and ns13.value-domain.com.
Host names with two IP numbers:
ns1.value-domain.com points to 172.64.52.38 and 172.64.52.161.
ns2.value-domain.com points to 172.64.53.3 and 172.64.53.115.
Mail Servers
Mail for alpha-do.jp is handled by a single mail server, alpha-do.jp.
Host alpha-do.jp points to IP 183.90.183.11.