springknowledge.co.jp - dns.ninja
springknowledge.co.jp
co.jp
| DNSSEC | ⚠️ Not signed | ||||||
| TXT | co.jp. | ||||||
Subdomains
redmine.springknowledge.co.jp |
Same first word
springknowledge.co.jp |
Similar names
DNS History
12 records (12 active, 0 former)
●MXalt1.aspmx.l.google.com2017-03-31 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
●MXalt2.aspmx.l.google.com2017-03-31 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
●MXaspmx.l.google.com2017-03-31 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
●MXaspmx2.googlemail.com2017-03-31 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
●MXaspmx3.googlemail.com2017-03-31 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
●MXaspmx4.googlemail.com2017-03-31 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
●MXaspmx5.googlemail.com2017-03-31 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
●A183.181.98.1482026-03-26 → 2026-08-07 · 2 obs
● 2026-08-07 17:20:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | f.dns.jp, h.dns.jp, d.dns.jp, b.dns.jp... | - |
| springknowledge.co.jp | 03.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp, 04.dnsv.jp | 7 records |
✅ Authoritative Response
Server:157.7.34.53
NS records: 03.dnsv.jp, 01.dnsv.jp, 02.dnsv.jp, 04.dnsv.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for springknowledge.co.jp (unsigned zone)
⏱️ Timing
Total: 876ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.181.98.148 |
| NS | 4 | 01.dnsv.jp, 02.dnsv.jp... |
| MX | 7 | alt1.aspmx.l.google.com (pri: 20), alt2.aspmx.l.google.com (pri: 20)... |
| SOA | 1 | 01.dnsv.jp hostmaster.dnsv.jp |
📌 Glue Records Collected
Total: 7
Out-of-bailiwick: 7 (04.dnsv.jp, 03.dnsv.jp, 02.dnsv.jp...)
Analysis
Hierarchy
The domain redmine.springknowledge.co.jp falls under the parent springknowledge.co.jp.
IP Addresses
springknowledge.co.jp has exactly one IP address — 183.181.98.148.
pppnm1148.chiba-ip.dti.ne.jp, mail.lightplan.net, ns2.a42.jp plus two other host names have IP numbers in common with springknowledge.co.jp.
Name Servers
Four name servers handle the delegation for springknowledge.co.jp: 01.dnsv.jp, 02.dnsv.jp, 03.dnsv.jp and 04.dnsv.jp.
At least some of springknowledge.co.jp's name servers are shared with other domains, for example 75kaikoumaru.com, eropuru.com, carcenter-takai.com and two more.
Host names pointing to two IP addresses:
01.dnsv.jp resolves to 157.7.32.53 and 2400:8500:3300::53.
03.dnsv.jp resolves to 157.7.34.53 and 2400:8500:3000::53.
04.dnsv.jp resolves to 157.7.35.53 and 2400:8500:3fff::53.
Host names resolving to a single IP address:
02.dnsv.jp resolves to 157.7.33.53.
Mail Servers
springknowledge.co.jp uses 7 mail servers for delivery: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.
At least some of the mail servers used by springknowledge.co.jp are shared with other domains: ns500671.ns500742.ns500731.ns500671.ns500731.ns500704.ns500671.ns500731.ns500688.ns500704.ns500671.ns500688.ns500649.ns500131.lustychickser.com, ns500768.ns500759.ns500759.ns500759.ns500759.ns500736.ns500698.ns500736.ns500735.ns500708.ns500576.ns500686.ns500652.ns500619.trackreceptor.com, ns500731.ns500731.ns500731.ns500742.ns500754.ns500671.ns500731.ns500705.ns500671.ns500688.ns500671.ns500688.ns500671.ns500291.ns500291.ns500291.ns500131.lustychickser.com and two others among them.
These mail servers are often deployed together with aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx2.googlemail.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1a.
aspmx4.googlemail.com resolves to 192.178.223.27 and 2a00:1450:4009:c0f::1b.
aspmx5.googlemail.com resolves to 172.253.157.26 and 2a00:1450:400c:c23::1b.
aspmx.l.google.com resolves to 142.251.163.26 and 2607:f8b0:4004:c29::1a.
alt1.aspmx.l.google.com resolves to 108.177.123.26 and 2800:3f0:4003:c0f::1a.
alt2.aspmx.l.google.com resolves to 172.253.116.27 and 2a00:1450:400b:c02::1b.
The host names aspmx2.googlemail.com and alt1.aspmx.l.google.com both resolve to 108.177.123.26 IP addresses.
The host names aspmx3.googlemail.com and alt2.aspmx.l.google.com both resolve to 172.253.116.27 IP addresses.