a-solution.jp - dns.ninja
a-solution.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 133.242.249.206🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | www4266.sakura.ne.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 | ||||||
| NS | ns2.value-domain.com | ||||||
| A | 172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns3.value-domain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns4.value-domain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.53.3🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns5.value-domain.com ⚠️ Not in zone NS records | ||||||
| A | 172.64.52.38🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mail.a-solution.jp ⭐ | ||||||
| A | 133.242.249.206🇯🇵 SAKURA-A133.242.0.0/16 (1/ISHIKARI) SAKURA Internet // HOKKAIDO BACKBONE 1-8-14 Minami-Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | www4266.sakura.ne.jp | ||||||
| TXT | v=spf1 mx ~all | ||||||
| SOA | ns1.value-domain.comhostmaster@a-solution.jp 2022-03-30 #18 | ||||||
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=1786532403 | ||||||
Subdomains
mail.a-solution.jp |
Same first word
a-solution.ca |
a-solution.be |
a-solution.org |
a-solution.jp |
a-solution.com |
a-solution.eu |
a-solution.fr |
a-solution.hu |
a-solution.co.jp |
a-solution.info |
a-solution.co.kr |
a-solution.de |
a-solution.com.au |
a-solution.co.uk |
DNS History
9 records (7 active, 2 former)
●NSns1.value-domain.com2015-06-06 → 2026-08-12 · 2 obs
● 2026-08-12 11:36:56
●NSns2.value-domain.com2015-06-06 → 2026-08-12 · 2 obs
● 2026-08-12 11:36:56
●NSns3.value-domain.com2026-03-01 → 2026-08-12 · 3 obs
● 2026-03-01 19:48:38
● 2026-08-12 11:36:56
●NSns4.value-domain.com2026-03-01 → 2026-08-12 · 3 obs
● 2026-03-01 19:48:38
● 2026-08-12 11:36:56
●NSns5.value-domain.com2026-03-01 → 2026-08-12 · 3 obs
● 2026-03-01 19:48:38
● 2026-08-12 11:36:56
●MXmail.a-solution.jp2015-06-06 → 2026-08-12 · 5 obs
● 2026-05-30 12:39:26
○ 2026-06-29 11:42:44
● 2026-07-15 07:26:28
● 2026-08-12 11:36:56
○A122.255.81.2062015-06-06 → 2016-02-07 · 4 obs
● 2016-02-07 09:28:04
○ 2016-09-14 07:18:38
○ 2026-08-12 11:36:56
●A133.242.249.2062026-03-01 → 2026-08-12 · 6 obs
● 2026-03-01 19:48:38
● 2026-05-30 12:39:26
○ 2026-06-29 11:42:44
● 2026-07-15 07:26:28
● 2026-08-12 11:36:56
○A153.122.97.1032016-09-14 → 2017-09-19 · 5 obs
● 2016-09-14 07:18:38
● 2017-09-19 18:42:02
○ 2026-03-01 19:48:38
○ 2026-08-12 11:36:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | e.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp... | - |
| a-solution.jp | ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com... | - |
✅ Authoritative Response
Server:172.64.52.38
NS records: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com, ns4.value-domain.com, ns5.value-domain.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for a-solution.jp (unsigned zone)
⏱️ Timing
Total: 1137ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 133.242.249.206 |
| NS | 2 | ns1.value-domain.com, ns2.value-domain.com |
| MX | 1 | mail.a-solution.jp (pri: 10) |
| TXT | 1 | v=spf1 mx ~all |
| SOA | 1 | ns1.value-domain.com hostmaster.a-soluti |
Analysis
Hierarchy
mail.a-solution.jp is a subdomain of a-solution.jp.
IP Addresses
a-solution.jp resolves to just one IP address, 133.242.249.206.
Two other host names, along with mail.a-solution.jp, mahora.shop and www4266.sakura.ne.jp, also share IP numbers with a-solution.jp.
Name Servers
a-solution.jp delegates to five name servers: ns1.value-domain.com, ns2.value-domain.com, ns3.value-domain.com and two others.
The name servers of a-solution.jp overlap at least partially with those of other domains — among them sparkarea.com, xgg.jp, k-cin.jp and two more.
The name servers ns4.value-domain.com, ns5.value-domain.com, ns11.value-domain.com and two others are commonly seen in use alongside these name servers.
Host names that point to one IP address:
ns1.value-domain.com resolves to 172.64.52.38.
ns2.value-domain.com resolves to 172.64.53.3.
ns3.value-domain.com resolves to 172.64.52.38.
ns4.value-domain.com resolves to 172.64.53.3.
ns5.value-domain.com resolves to 172.64.52.38.
Each of ns1.value-domain.com, ns3.value-domain.com and ns5.value-domain.com resolves to 172.64.52.38.
The host names ns2.value-domain.com and ns4.value-domain.com both resolve to 172.64.53.3 IP addresses.
Mail Servers
The sole mail server for a-solution.jp is mail.a-solution.jp.
mail.a-solution.jp points to one IP number — 133.242.249.206.