bstudy.jp - dns.ninja

bstudy.jp

DNSSEC⚠️ Not signed
A183.181.98.19🇯🇵 XSERVER-AS183.181.98.0/23 XSERVER Inc.
PTRsv6018.xserver.jp
NSns1.xserver.jp ⭐
A202.226.36.164🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.170🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
A202.226.36.246🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns1.xserver.jp
NSns2.xserver.jp
A35.72.43.26🇯🇵 Amazon35.72.0.0/13 EC2 NRT prefix
PTRns2.xserver.jp
NSns3.xserver.jp
A202.226.36.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns3.xserver.jp
NSns4.xserver.jp
A183.90.224.226🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A183.90.224.230🇯🇵 XSERVER-AS183.90.224.0/20 XSERVER Inc.
A202.226.39.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns4.xserver.jp
NSns5.xserver.jp
A157.112.182.218🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A157.112.182.220🇯🇵 XSERVER-AS157.112.176.0/21 XSERVER Inc.
A202.226.37.247🇯🇵 XSERVER-AS202.226.36.0/22 XSERVER Inc.
PTRns5.xserver.jp
TXTv=spf1 +a:sv6018.xserver.jp +a:bstudy.jp +mx include:spf.sender.xserver.jp ~all
SOAns1.xserver.jproot@xserver.jp serial=0

jp

DNSSEC🔒 Signed (DS record present)
NSz.dns.jp ⭐
NSa.dns.jp
NSb.dns.jp
NSc.dns.jp
NSd.dns.jp
NSe.dns.jp
NSf.dns.jp
NSg.dns.jp
NSh.dns.jp
SOAz.dns.jproot@dns.jp serial=1784886303

Same first word

bstudy.ru
bstudy.com
bstudy.net
bstudy.jp

Similar names

stubdy.com
studby.com
bydust.com
bystud.com
buydst.com
studyb.com
buytds.net
dubsty.com
stdbuy.cn
budyst.com
bustyd.com
buytds.com

DNS History

6 records (6 active, 0 former)

NSns1.xserver.jpns2.xserver.jpns3.xserver.jpns4.xserver.jpns5.xserver.jpA183.181.98.19
●NSns1.xserver.jp2026-06-25 → 2026-07-24 · 2 obs
● 2026-06-25 20:32:12
● 2026-07-24 10:14:48
●NSns2.xserver.jp2026-06-25 → 2026-07-24 · 2 obs
● 2026-06-25 20:32:12
● 2026-07-24 10:14:48
●NSns3.xserver.jp2026-06-25 → 2026-07-24 · 2 obs
● 2026-06-25 20:32:12
● 2026-07-24 10:14:48
●NSns4.xserver.jp2026-06-25 → 2026-07-24 · 2 obs
● 2026-06-25 20:32:12
● 2026-07-24 10:14:48
●NSns5.xserver.jp2026-06-25 → 2026-07-24 · 2 obs
● 2026-06-25 20:32:12
● 2026-07-24 10:14:48
●A183.181.98.192026-06-25 → 2026-07-24 · 2 obs
● 2026-06-25 20:32:12
● 2026-07-24 10:14:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
jpe.dns.jp, g.dns.jp, c.dns.jp, a.dns.jp...-
bstudy.jpns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp...11 records

✅ Authoritative Response

Server:202.226.36.247

NS records: ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp, ns4.xserver.jp, ns5.xserver.jp

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bstudy.jp (unsigned zone)

⏱️ Timing

Total: 963ms | Queries: -

📄 Records

TypeCountSample Data
A1183.181.98.19
NS5ns2.xserver.jp, ns5.xserver.jp...
TXT1v=spf1 +a:sv6018.xserver.jp +a:bstudy.jp
SOA1ns1.xserver.jp root.xserver.jp

📌 Glue Records Collected

Total: 11

Out-of-bailiwick: 11 (ns1.xserver.jp, ns1.xserver.jp, ns1.xserver.jp...)

Analysis

IP Addresses

bstudy.jp directs to one IP number, which is 183.181.98.19.

Among the host names that share IP numbers with bstudy.jp are www.yamagataa.com, mx.au-poivre.jp, tabicam.com and two others.

Name Servers

The authoritative name servers for bstudy.jp are ns1.xserver.jp, ns2.xserver.jp, ns3.xserver.jp and two others.

At least some of bstudy.jp's name servers are shared with other domains, for example mo-mo-land.com, t-engei.com, xn--sckyeodv22m9y1b.com and two more.

These name servers tend to be deployed in combination with the name servers ns4.xserver.jp and ns5.xserver.jp.

Hosts with three IP address records:

ns1.xserver.jp maps to three IP addresses: 202.226.36.164, 202.226.36.170 and 202.226.36.246.

ns4.xserver.jp maps to three IP addresses: 183.90.224.226, 183.90.224.230 and 202.226.39.247.

ns5.xserver.jp maps to three IP addresses: 157.112.182.218, 157.112.182.220 and 202.226.37.247.

Hosts that resolve to one IP address:

ns2.xserver.jp resolves to the IP address 35.72.43.26.

ns3.xserver.jp resolves to the IP address 202.226.36.247.