codeprep.jp - robtex.com
codeprep.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=1771290902 | ||||||
Subdomains
assets.codeprep.jp |
Same first word
Similar names
DNS History
21 records (11 active, 10 former)
○NS01.dnsv.jp2015-07-24 → 2016-07-13 · 4 obs
● 2016-07-13 16:07:06
○ 2017-01-04 08:16:26
○ 2026-03-01 22:56:24
○NS02.dnsv.jp2015-07-24 → 2016-07-13 · 4 obs
● 2016-07-13 16:07:06
○ 2017-01-04 08:16:26
○ 2026-03-01 22:56:24
○NS03.dnsv.jp2015-07-24 → 2016-07-13 · 4 obs
● 2016-07-13 16:07:06
○ 2017-01-04 08:16:26
○ 2026-03-01 22:56:24
○NS04.dnsv.jp2015-07-24 → 2016-07-13 · 4 obs
● 2016-07-13 16:07:06
○ 2017-01-04 08:16:26
○ 2026-03-01 22:56:24
●NSns-1154.awsdns-16.org2017-01-04 → 2026-03-01 · 3 obs
● 2017-01-04 08:16:26
● 2026-03-01 22:56:24
●NSns-1610.awsdns-09.co.uk2017-01-04 → 2026-03-01 · 3 obs
● 2017-01-04 08:16:26
● 2026-03-01 22:56:24
●NSns-236.awsdns-29.com2017-01-04 → 2026-03-01 · 3 obs
● 2017-01-04 08:16:26
● 2026-03-01 22:56:24
●NSns-807.awsdns-36.net2017-01-04 → 2026-03-01 · 3 obs
● 2017-01-04 08:16:26
● 2026-03-01 22:56:24
●MXalt1.aspmx.l.google.com2018-08-03 → 2026-03-01 · 3 obs
● 2018-08-03 04:17:54
● 2026-03-01 22:56:24
●MXalt2.aspmx.l.google.com2018-08-03 → 2026-03-01 · 3 obs
● 2018-08-03 04:17:54
● 2026-03-01 22:56:24
●MXaspmx.l.google.com2018-08-03 → 2026-03-01 · 3 obs
● 2018-08-03 04:17:54
● 2026-03-01 22:56:24
●MXaspmx2.googlemail.com2018-08-03 → 2026-03-01 · 3 obs
● 2018-08-03 04:17:54
● 2026-03-01 22:56:24
●MXaspmx3.googlemail.com2018-08-03 → 2026-03-01 · 3 obs
● 2018-08-03 04:17:54
● 2026-03-01 22:56:24
○MXcodeprep.sakura.ne.jp2015-07-24 → 2016-07-13 · 4 obs
● 2016-07-13 16:07:06
○ 2017-01-04 08:16:26
○ 2026-03-01 22:56:24
○A13.115.189.962026-03-01 → 2026-03-01 · 2 obs
○ 2026-03-01 22:56:24
○A13.230.84.1982018-08-03 → 2018-08-03 · 4 obs
● 2018-08-03 04:17:54
○ 2026-03-01 08:15:50
○ 2026-03-01 22:56:24
○A133.242.166.1512015-07-24 → 2017-01-04 · 4 obs
● 2017-01-04 08:16:26
○ 2018-08-03 04:17:54
○ 2026-03-01 22:56:24
○A3.113.224.2512026-03-01 → 2026-03-01 · 2 obs
○ 2026-03-01 22:56:24
○A52.69.241.412018-08-03 → 2018-08-03 · 4 obs
● 2018-08-03 04:17:54
○ 2026-03-01 08:15:50
○ 2026-03-01 22:56:24
●A54.248.79.1962026-03-01 → 2026-03-01 · 3 obs
● 2026-03-01 08:15:50
● 2026-03-01 22:56:24
●A57.180.188.792026-03-01 → 2026-03-01 · 3 obs
● 2026-03-01 08:15:50
● 2026-03-01 22:56:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| jp | a.dns.jp, b.dns.jp, c.dns.jp, d.dns.jp... | - |
| codeprep.jp | ns-236.awsdns-29.com, ns-1610.awsdns-09.co.uk, ns-1154.awsdns-16.org, ns-807.awsdns-36.net | - |
✅ Authoritative Response
Server: 205.251.192.236
NS records: ns-236.awsdns-29.com, ns-1610.awsdns-09.co.uk, ns-1154.awsdns-16.org, ns-807.awsdns-36.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for codeprep.jp (unsigned zone)
⏱️ Timing
Total: 625ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 54.248.79.196, 57.180.188.79 |
| NS | 4 | ns-1154.awsdns-16.org, ns-1610.awsdns-09.co.uk... |
| MX | 5 | aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)... |
| TXT | 1 | v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns-236.awsdns-29.com awsdns-hostmaster.a |
Analysis
Hierarchy
The parent of assets.codeprep.jp is codeprep.jp.
IP Addresses
Two IP numbers are pointed to by codeprep.jp: 54.248.79.196 and 57.180.188.79.
Other host names, for instance ec2-57-180-188-79.ap-northeast-1.compute.amazonaws.com, share IP numbers with codeprep.jp.
Name Servers
codeprep.jp delegates to four name servers: ns-236.awsdns-29.com, ns-807.awsdns-36.net, ns-1154.awsdns-16.org and ns-1610.awsdns-09.co.uk.
codeprep.jp at least partially shares name servers with other domains, for instance vidyocloudstaging.com, georgianotice.com, durador.com.au, d2mgkh2pv1b1c1.cloudfront.net and enem.com.br.
these name servers are commonly used alongside the name servers ns-336.awsdns-42.com, ns3.vortala.com, ns4.vortala.com, ns5.vortala.com, ns6.vortala.com, ns-766.awsdns-31.net and ns-1701.awsdns-20.co.uk.
Host names with two IP numbers: ns-236.awsdns-29.com points to 2600:9000:5300:ec00::1 and 205.251.192.236; ns-807.awsdns-36.net points to 2600:9000:5303:2700::1 and 205.251.195.39; ns-1154.awsdns-16.org points to 2600:9000:5304:8200::1 and 205.251.196.130; ns-1610.awsdns-09.co.uk points to 2600:9000:5306:4a00::1 and 205.251.198.74.
Mail Servers
codeprep.jp is served by five mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com, alt1.aspmx.l.google.com and alt2.aspmx.l.google.com.
codeprep.jp shares at least partially some mail servers with other domains, for instance ns500693.ns500693.ns500699.ns500699.ns500734.ns500693.ns500699.ns500683.ns500699.ns500693.ns500602.dtrkdll.com, ns500734.ns500693.ns500734.ns500699.ns500699.ns500588.ns500699.ns500699.ns500683.ns500588.ns500632.ns500612.ns500588.ns500632.ns500612.ns500578.ns500110.dtrkdll.com, encanel.com.br, unreal.in.ua and ns500821.ns500794.ns500821.ns500821.ns500841.ns500821.ns500821.ns500821.ns500795.ns500821.ns500795.ns500821.ns500795.ns500790.ns500795.lustypartnersfinder.com.
Mail servers frequently appear alongside alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx4.googlemail.com and aspmx5.googlemail.com.
Host names with two IP numbers:
Host aspmx2.googlemail.com points to 2607:f8b0:4003:c30::1b and 74.125.27.27
Host aspmx3.googlemail.com points to 2607:f8b0:4001:c70::1a and 192.178.209.27
Host aspmx.l.google.com points to 2607:f8b0:4004:c19::1b and 172.253.62.27
Host alt1.aspmx.l.google.com points to 2607:f8b0:4003:c30::1b and 74.125.27.26
Host alt2.aspmx.l.google.com points to 2607:f8b0:4001:c70::1a and 192.178.209.26
Host names pointing to 2607:f8b0:4003:c30::1b: aspmx2.googlemail.com and alt1.aspmx.l.google.com
Host names pointing to 2607:f8b0:4001:c70::1a: aspmx3.googlemail.com and alt2.aspmx.l.google.com