code4lib.jp - robtex.com
code4lib.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=1787839203 | ||||||
Same first word
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DNS History
11 records (10 active, 1 former)
●MXalt1.aspmx.l.google.com2015-07-07 → 2026-08-27 · 2 obs
● 2026-08-27 14:54:54
●MXalt2.aspmx.l.google.com2015-07-07 → 2026-08-27 · 2 obs
● 2026-08-27 14:54:54
●MXaspmx.l.google.com2015-07-07 → 2026-08-27 · 2 obs
● 2026-08-27 14:54:54
●MXaspmx2.googlemail.com2015-07-07 → 2026-08-27 · 2 obs
● 2026-08-27 14:54:54
●MXaspmx3.googlemail.com2015-07-07 → 2026-08-27 · 2 obs
● 2026-08-27 14:54:54
●MXaspmx4.googlemail.com2015-07-07 → 2026-08-27 · 2 obs
● 2026-08-27 14:54:54
●MXaspmx5.googlemail.com2015-07-07 → 2026-08-27 · 2 obs
● 2026-08-27 14:54:54
○A112.78.112.142015-07-07 → 2017-05-12 · 4 obs
● 2017-05-12 19:56:56
○ 2026-08-25 06:34:58
○ 2026-08-27 14:54:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | c.dns.jp, h.dns.jp, g.dns.jp, e.dns.jp... | - |
| code4lib.jp | ns2.dns.ne.jp, ns1.dns.ne.jp | 2 records |
✅ Authoritative Response
Server:61.211.236.1
NS records: ns2.dns.ne.jp, ns1.dns.ne.jp
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for code4lib.jp (unsigned zone)
⏱️ Timing
Total: 661ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.dns.ne.jp, ns2.dns.ne.jp |
| MX | 8 | ASPMX.L.GOOGLE.COM (pri: 10), ASPMX.L.GOOGLE.COM (pri: 1)... |
| SOA | 1 | master.dns.ne.jp tech.sakura.ad.jp |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns2.dns.ne.jp, ns1.dns.ne.jp)
Analysis
Name Servers
code4lib.jp carries NS records delegating to master.dns.ne.jp, ns1.dns.ne.jp and ns2.dns.ne.jp.
The name servers of code4lib.jp overlap at least partially with those of other domains — among them kusatsu-hp.jp, onosato.net, porter.services and two more.
master.dns.ne.jp points to 210.224.172.18; ns1.dns.ne.jp points to 61.211.236.1; ns2.dns.ne.jp points to 133.167.21.1 — each hostname maps to exactly one IP address.
Mail Servers
code4lib.jp has 7 mail servers — aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com plus 4 other.
At least some of the mail servers used by code4lib.jp are shared with other domains: mndigital.co.uk, bendybeachhouse.com, kadencemusictherapy.com and two others among them.
These mail servers are often deployed together with alt2.aspmx.l.google.com, alt1.aspmx.l.google.com, aspmx.l.google.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx2.googlemail.com resolves to two addresses: 192.178.234.27 and 2800:3f0:4003:c14::1b.
aspmx3.googlemail.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx4.googlemail.com resolves to two addresses: 192.178.223.27 and 2a00:1450:4009:c0f::1a.
aspmx5.googlemail.com resolves to two addresses: 172.253.157.27 and 2a00:1450:400c:c23::1b.
aspmx.l.google.com resolves to two addresses: 142.250.31.27 and 2607:f8b0:4004:c06::1b.
alt1.aspmx.l.google.com resolves to two addresses: 192.178.234.27 and 2800:3f0:4003:c14::1b.
alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.
aspmx2.googlemail.com along with alt1.aspmx.l.google.com each resolve to 2800:3f0:4003:c14::1b IP addresses.
aspmx2.googlemail.com along with alt1.aspmx.l.google.com each resolve to 192.178.234.27 IP addresses.
aspmx3.googlemail.com along with alt2.aspmx.l.google.com each resolve to 172.253.116.26 IP addresses.