sb-system.jp - robtex.com
sb-system.jp
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-172.awsdns-21.com ⭐ | ||||||
| A | 2600:9000:5300:ac00::1🇺🇸 Amazon2600:9000:5300::/48 - CloudFront | ||||||
| PTR | ns-172.awsdns-21.com | ||||||
| A | 205.251.192.172🇺🇸 Amazon205.251.192.0/24 prefix | ||||||
| PTR | ns-172.awsdns-21.com | ||||||
| NS | ns-1490.awsdns-58.org | ||||||
| A | 2600:9000:5305:d200::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1490.awsdns-58.org | ||||||
| A | 205.251.197.210🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1490.awsdns-58.org | ||||||
| NS | ns-2045.awsdns-63.co.uk | ||||||
| A | 2600:9000:5307:fd00::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-2045.awsdns-63.co.uk | ||||||
| A | 205.251.199.253🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-2045.awsdns-63.co.uk | ||||||
| NS | ns-936.awsdns-53.net | ||||||
| A | 2600:9000:5303:a800::1🇺🇸 Amazon2600:9000:5303::/48 - CloudFront | ||||||
| PTR | ns-936.awsdns-53.net | ||||||
| A | 205.251.195.168🇺🇸 Amazon205.251.195.0/24 prefix | ||||||
| PTR | ns-936.awsdns-53.net | ||||||
| SOA | ns-172.awsdns-21.comawsdns-hostmaster@amazon.com serial=1 | ||||||
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=1785236402 | ||||||
Same first word
Similar names
b-systems.ch |
b-systems.ltd |
b-systems.com |
b-systems.org |
b-systems.be |
b-systems.eu |
b-systems.ru |
b-systems.net |
b-systems.de |
bs-system.de |
DNS History
10 records (4 active, 6 former)
●NSns-1490.awsdns-58.org2026-03-27 → 2026-07-28 · 3 obs
● 2026-03-27 11:47:10
● 2026-07-28 11:44:32
●NSns-172.awsdns-21.com2026-03-27 → 2026-07-28 · 3 obs
● 2026-03-27 11:47:10
● 2026-07-28 11:44:32
●NSns-2045.awsdns-63.co.uk2026-03-27 → 2026-07-28 · 3 obs
● 2026-03-27 11:47:10
● 2026-07-28 11:44:32
●NSns-936.awsdns-53.net2026-03-27 → 2026-07-28 · 3 obs
● 2026-03-27 11:47:10
● 2026-07-28 11:44:32
○NSnsas1.firstserver.ne.jp2015-06-13 → 2017-05-18 · 4 obs
● 2017-05-18 22:02:44
○ 2026-03-27 11:47:10
○ 2026-07-28 11:44:32
○NSnsas2.firstserver.ne.jp2015-06-13 → 2017-05-18 · 4 obs
● 2017-05-18 22:02:44
○ 2026-03-27 11:47:10
○ 2026-07-28 11:44:32
○MXmail.sb-system.jp2015-06-13 → 2017-05-18 · 4 obs
● 2017-05-18 22:02:44
○ 2026-03-27 11:47:10
○ 2026-07-28 11:44:32
○MXmx1.firstserver.ne.jp2015-06-13 → 2017-05-18 · 4 obs
● 2017-05-18 22:02:44
○ 2026-03-27 11:47:10
○ 2026-07-28 11:44:32
○MXmx2.firstserver.ne.jp2015-06-13 → 2017-05-18 · 4 obs
● 2017-05-18 22:02:44
○ 2026-03-27 11:47:10
○ 2026-07-28 11:44:32
○A203.137.81.242015-06-13 → 2017-05-18 · 4 obs
● 2017-05-18 22:02:44
○ 2026-03-27 11:47:10
○ 2026-07-28 11:44:32
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| sb-system.jp | ns-2045.awsdns-63.co.uk, ns-172.awsdns-21.com, ns-936.awsdns-53.net, ns-1490.awsdns-58.org | - |
✅ Authoritative Response
Server:205.251.199.253
NS records: ns-2045.awsdns-63.co.uk, ns-172.awsdns-21.com, ns-936.awsdns-53.net, ns-1490.awsdns-58.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sb-system.jp (unsigned zone)
⏱️ Timing
Total: 650ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1490.awsdns-58.org, ns-172.awsdns-21.com... |
| SOA | 1 | ns-172.awsdns-21.com awsdns-hostmaster.a |
Analysis
Name Servers
Four name servers handle the delegation for sb-system.jp: ns-172.awsdns-21.com, ns-936.awsdns-53.net, ns-1490.awsdns-58.org and ns-2045.awsdns-63.co.uk.
sb-system.jp shares at least some of its name servers with other domains, including vivace.parts, qtgyjrwkw.net, yijin.biz and two others.
The host names ns-172.awsdns-21.com, ns-936.awsdns-53.net, ns-1490.awsdns-58.org and ns-2045.awsdns-63.co.uk each resolve to two IP addresses: ns-172.awsdns-21.com resolves to 205.251.192.172 and 2600:9000:5300:ac00::1; ns-936.awsdns-53.net resolves to 205.251.195.168 and 2600:9000:5303:a800::1; ns-1490.awsdns-58.org resolves to 205.251.197.210 and 2600:9000:5305:d200::1; ns-2045.awsdns-63.co.uk resolves to 205.251.199.253 and 2600:9000:5307:fd00::1.