jstqb.jp - robtex.com
jstqb.jp
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=1778512502 | ||||||
rank #16418 in the tld
Subdomains
mail.jstqb.jp |
Same first word
jstqb.jp |
Similar names
tjsqb.com |
sqbtj.com |
jqsbt.cn |
bjqst.com |
jqstb.com |
tjqsb.com |
jstbq.com |
qstbj.com |
tjbsq.com |
bqjst.com |
tqjsb.com |
sjbtq.com |
bjsqt.cn |
bjtsq.com |
DNS History
11 records (6 active, 5 former)
●NSns-1074.awsdns-06.org2020-04-12 → 2026-05-11 · 3 obs
● 2020-04-12 16:59:04
● 2026-05-11 15:37:30
●NSns-1627.awsdns-11.co.uk2020-04-12 → 2026-05-11 · 3 obs
● 2020-04-12 16:59:04
● 2026-05-11 15:37:30
●NSns-300.awsdns-37.com2020-04-12 → 2026-05-11 · 3 obs
● 2020-04-12 16:59:04
● 2026-05-11 15:37:30
●NSns-840.awsdns-41.net2020-04-12 → 2026-05-11 · 3 obs
● 2020-04-12 16:59:04
● 2026-05-11 15:37:30
○NSnsas1.firstserver.ne.jp2015-08-23 → 2017-04-20 · 4 obs
● 2017-04-20 12:35:08
○ 2020-04-12 16:59:04
○ 2026-05-11 15:37:30
○NSnsas2.firstserver.ne.jp2015-08-23 → 2017-04-20 · 4 obs
● 2017-04-20 12:35:08
○ 2020-04-12 16:59:04
○ 2026-05-11 15:37:30
●MXmail.jstqb.jp2015-08-23 → 2026-05-11 · 2 obs
● 2026-05-11 15:37:30
○MXmx1.firstserver.ne.jp2015-08-23 → 2017-04-20 · 4 obs
● 2017-04-20 12:35:08
○ 2020-04-12 16:59:04
○ 2026-05-11 15:37:30
○MXmx2.firstserver.ne.jp2015-08-23 → 2017-04-20 · 4 obs
● 2017-04-20 12:35:08
○ 2020-04-12 16:59:04
○ 2026-05-11 15:37:30
○A164.46.89.2402015-08-23 → 2017-04-20 · 4 obs
● 2017-04-20 12:35:08
○ 2020-04-12 16:59:04
○ 2026-05-11 15:37:30
●A164.46.93.1732020-04-12 → 2026-05-11 · 3 obs
● 2020-04-12 16:59:04
● 2026-05-11 15:37:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| jstqb.jp | ns-840.awsdns-41.net, ns-1074.awsdns-06.org, ns-1627.awsdns-11.co.uk, ns-300.awsdns-37.com | - |
✅ Authoritative Response
Server:205.251.196.50
NS records: ns-840.awsdns-41.net, ns-1074.awsdns-06.org, ns-1627.awsdns-11.co.uk, ns-300.awsdns-37.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jstqb.jp (unsigned zone)
⏱️ Timing
Total: 715ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 164.46.93.173 |
| NS | 4 | ns-1074.awsdns-06.org, ns-1627.awsdns-11.co.uk... |
| MX | 1 | mail.jstqb.jp (pri: 100) |
| SOA | 1 | ns-840.awsdns-41.net awsdns-hostmaster.a |
Analysis
Hierarchy
The parent of mail.jstqb.jp is jstqb.jp.
IP Addresses
jstqb.jp points to a single IP: 164.46.93.173.
Other host names, such as mail.jstqb.jp, share IP numbers with jstqb.jp.
Name Servers
jstqb.jp's delegation is handled by four name servers: ns-300.awsdns-37.com, ns-840.awsdns-41.net, ns-1074.awsdns-06.org and ns-1627.awsdns-11.co.uk.
jstqb.jp partially shares name servers with other domains; examples include news24.at, workspaces.ap-southeast-1.amazonaws.com, c2gconnect.com, royalcams.com and akzalta.com.
Host names with two IPs:
ns-300.awsdns-37.com points to 2600:9000:5301:2c00::1 and 205.251.193.44
ns-840.awsdns-41.net points to 2600:9000:5303:4800::1 and 205.251.195.72
ns-1074.awsdns-06.org points to 2600:9000:5304:3200::1 and 205.251.196.50
ns-1627.awsdns-11.co.uk points to 2600:9000:5306:5b00::1 and 205.251.198.91
Mail Servers
jstqb.jp is handled by a single mail server, mail.jstqb.jp.
jstqb.jp uses the same mail server setup as other domains, for example mail.jstqb.jp.
mail.jstqb.jp points to a single IP: 164.46.93.173.