speedtest.jp - robtex.com
speedtest.jp
| DNSSEC | ⚠️ Not signed | ||||||
| A | 150.95.149.96 | ||||||
| NS | a.misconfigured.dns.server.invalid ⭐ | ||||||
| NS | ns1.cbsv.jp | ||||||
| NS | ns2.cbsv.jp | ||||||
| SOA | a.misconfigured.dns.server.invalidhostmaster@speedtest.jp 2025-08-08 #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=1780332302 | ||||||
Previously MX for
speedtest.jp |
DNS History
11 records (4 active, 7 former)
●NSa.misconfigured.dns.server.invalid2026-05-19 → 2026-06-01 · 3 obs
○ 2017-08-29 01:06:44
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
●NSns1.cbsv.jp2026-05-19 → 2026-06-01 · 3 obs
○ 2017-08-29 01:06:44
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
○NSns1.xserver.jp2015-07-16 → 2017-08-29 · 4 obs
● 2015-07-16 23:43:52
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
●NSns2.cbsv.jp2026-05-19 → 2026-06-01 · 3 obs
○ 2017-08-29 01:06:44
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
○NSns2.xserver.jp2015-07-16 → 2017-08-29 · 4 obs
● 2015-07-16 23:43:52
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
○NSns3.xserver.jp2015-07-16 → 2017-08-29 · 4 obs
● 2015-07-16 23:43:52
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
○NSns4.xserver.jp2015-07-16 → 2017-08-29 · 4 obs
● 2015-07-16 23:43:52
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
○NSns5.xserver.jp2015-07-16 → 2017-08-29 · 4 obs
● 2015-07-16 23:43:52
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
○MXspeedtest.jp2015-07-16 → 2017-08-29 · 4 obs
● 2015-07-16 23:43:52
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
●A150.95.149.962026-05-19 → 2026-06-01 · 3 obs
○ 2017-08-29 01:06:44
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
● 2026-05-19 19:36:40
● 2026-06-01 17:20:46
○A157.112.176.682015-07-16 → 2017-08-29 · 4 obs
● 2015-07-16 23:43:52
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
● 2017-08-29 01:06:44
○ 2026-05-19 19:36:40
○ 2026-06-01 17:20:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| speedtest.jp | ns2.cbsv.jp, ns1.cbsv.jp | - |
✅ Authoritative Response
Server:172.64.52.199
NS records: ns2.cbsv.jp, ns1.cbsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for speedtest.jp (unsigned zone)
⏱️ Timing
Total: 5032ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 150.95.149.96 |
| NS | 2 | ns1.cbsv.jp, ns2.cbsv.jp |
| SOA | 1 | a.misconfigured.dns.server.invalid hostm |
Analysis
IP Addresses
speedtest.jp resolves to one IP address: 150.95.149.96.
Name Servers
The authoritative name servers for speedtest.jp are ns1.cbsv.jp, ns2.cbsv.jp and a.misconfigured.dns.server.invalid — three in total.