docker.jp - robtex.com
docker.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 59.106.213.203🇯🇵 SAKURA-B59.106.192.0/19 (7-192/TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | asuna.pocketstudio.net | ||||||
| NS | ns.docker.jp ⭐ | ||||||
| A | 153.121.40.37🇯🇵 SAKURA-B153.121.32.0/19 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | sakura1.pocketstudio.net | ||||||
| NS | sakura1.pocketstudio.net | ||||||
| A | 153.121.40.37🇯🇵 SAKURA-B153.121.32.0/19 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | sakura1.pocketstudio.net | ||||||
| NS | sakura3.pocketstudio.net | ||||||
| A | 153.121.46.159🇯🇵 SAKURA-B153.121.32.0/19 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | sakura3.pocketstudio.net | ||||||
| MX | ns.docker.jp ⭐ | ||||||
| A | 153.121.40.37🇯🇵 SAKURA-B153.121.32.0/19 (TOKYO) SAKURA Internet // EAST JAPAN BACKBONE 1-8-14 Minami Honmachi, Chuo-ku, Osaka 541-0054, Japan | ||||||
| PTR | sakura1.pocketstudio.net | ||||||
| TXT | google-site-verification=xYopc3UHnGL5rzCZ6WemZN914LkteOO6l9ifj0jawiU | ||||||
| TXT | v=spf1 +ip4:59.106.213.203 +ip4:59.106.215.178 +ip4:163.43.194.179 ~all | ||||||
| SOA | ns.docker.jppostmaster@zem.jp 2022-05-23 #2 | ||||||
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=1783075503 | ||||||
rank #5418 in the tld
Subdomains
ns.docker.jp |
Same first word
Similar names
DNS History
6 records (5 active, 1 former)
●NSns.docker.jp2015-05-18 → 2026-07-03 · 2 obs
● 2026-07-03 11:01:26
●NSsakura1.pocketstudio.net2015-05-18 → 2026-07-03 · 2 obs
● 2026-07-03 11:01:26
●NSsakura3.pocketstudio.net2015-05-18 → 2026-07-03 · 2 obs
● 2026-07-03 11:01:26
●MXns.docker.jp2015-05-18 → 2026-07-03 · 2 obs
● 2026-07-03 11:01:26
○A153.121.40.372015-05-18 → 2016-09-24 · 4 obs
● 2016-09-24 03:31:28
○ 2017-02-16 07:42:52
○ 2026-07-03 11:01:26
●A59.106.213.2032017-02-16 → 2026-07-03 · 3 obs
● 2017-02-16 07:42:52
● 2026-07-03 11:01:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| docker.jp | sakura1.pocketstudio.net, sakura3.pocketstudio.net | - |
✅ Authoritative Response
Server:153.121.40.37
NS records: sakura1.pocketstudio.net, sakura3.pocketstudio.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for docker.jp (unsigned zone)
⏱️ Timing
Total: 1410ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 59.106.213.203 |
| NS | 2 | sakura1.pocketstudio.net, sakura3.pocketstudio.net |
| MX | 1 | ns.docker.jp (pri: 10) |
| TXT | 2 | google-site-verification=xYopc3UHnGL5rzC, v=spf1 +ip4:59.106.213.203 +ip4:59.106.2 |
| SOA | 1 | ns.docker.jp postmaster.zem.jp |
Analysis
Hierarchy
The domain ns.docker.jp falls under the parent docker.jp.
IP Addresses
docker.jp has exactly one IP address — 59.106.213.203.
Host names like asuna.pocketstudio.net are further examples that share IP numbers with docker.jp.
Name Servers
docker.jp carries NS records delegating to ns.docker.jp, sakura1.pocketstudio.net and sakura3.pocketstudio.net.
At least some of docker.jp's name servers are shared with other domains, for example x29.jp, dkbk.jp, icqdojo.jp and two more.
These name servers tend to co-occur with ns.dkbk.jp, ns.icqdojo.jp, ns.spten.jp and 3 other name servers in the same DNS delegations.
ns.docker.jp and sakura1.pocketstudio.net both resolve to 153.121.40.37, while sakura3.pocketstudio.net resolves to 153.121.46.159; all three hostnames carry exactly one IP address.
ns.docker.jp along with sakura1.pocketstudio.net each resolve to 153.121.40.37 IP addresses.
Mail Servers
docker.jp uses one mail server — ns.docker.jp.
docker.jp uses the same mail servers as other domains, including ns.docker.jp.