nstudy.info - dns.ninja
nstudy.info
| DNSSEC | ⚠️ Not signed | ||||||
| A | 183.90.180.104🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | tky004.rakko.zone | ||||||
| NS | ns1.rakko.zone ⭐ | ||||||
| A | 172.64.52.196🇺🇸 Cloudflare172.64.52.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.rakko.zone | ||||||
| A | 172.64.53.134🇺🇸 Cloudflare172.64.53.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | nstudy.info ⭐ | ||||||
| A | 183.90.180.104🇯🇵 DRNET183.90.176.0/21 | ||||||
| PTR | tky004.rakko.zone | ||||||
| TXT | v=spf1 +a +mx +ip4:183.90.180.104 ~all | ||||||
| SOA | ns1.rakko.zonehostmaster@nstudy.info 2025-12-17 #1 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1783826315 | ||||||
MX for
nstudy.info |
Same first word
Similar names
tyudns.com |
sunydt.com |
dustyn.de |
studny.net |
dustyn.org |
stdyun.com |
tydsun.cn |
nystud.com |
studyn.jp |
sytdun.com |
nudyst.com |
DNS History
10 records (4 active, 6 former)
●NSns1.rakko.zone2026-02-24 → 2026-07-12 · 3 obs
● 2026-02-24 21:12:20
● 2026-07-12 03:56:56
○NSns1.xserver.jp2018-05-08 → 2018-05-08 · 3 obs
○ 2026-02-24 21:12:20
○ 2026-07-12 03:56:56
●NSns2.rakko.zone2026-02-24 → 2026-07-12 · 3 obs
● 2026-02-24 21:12:20
● 2026-07-12 03:56:56
○NSns2.xserver.jp2018-05-08 → 2018-05-08 · 3 obs
○ 2026-02-24 21:12:20
○ 2026-07-12 03:56:56
○NSns3.xserver.jp2018-05-08 → 2018-05-08 · 3 obs
○ 2026-02-24 21:12:20
○ 2026-07-12 03:56:56
○NSns4.xserver.jp2018-05-08 → 2018-05-08 · 3 obs
○ 2026-02-24 21:12:20
○ 2026-07-12 03:56:56
○NSns5.xserver.jp2018-05-08 → 2018-05-08 · 3 obs
○ 2026-02-24 21:12:20
○ 2026-07-12 03:56:56
●MXnstudy.info2018-05-08 → 2026-07-12 · 2 obs
● 2026-07-12 03:56:56
●A183.90.180.1042026-02-24 → 2026-07-12 · 3 obs
● 2026-02-24 21:12:20
● 2026-07-12 03:56:56
○A183.90.245.72018-05-08 → 2018-05-08 · 3 obs
○ 2026-02-24 21:12:20
○ 2026-07-12 03:56:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a0.info.afilias-nst.info, c0.info.afilias-nst.info, a2.info.afilias-nst.info | - |
| nstudy.info | ns1.rakko.zone, ns2.rakko.zone | - |
✅ Authoritative Response
Server:172.64.53.134
NS records: ns1.rakko.zone, ns2.rakko.zone
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for nstudy.info (unsigned zone)
⏱️ Timing
Total: 1062ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 183.90.180.104 |
| NS | 2 | ns2.rakko.zone, ns1.rakko.zone |
| MX | 1 | nstudy.info (pri: 10) |
| TXT | 1 | v=spf1 +a +mx +ip4:183.90.180.104 ~all |
| SOA | 1 | ns1.rakko.zone hostmaster.nstudy.info |
Analysis
Mail Server Role
The MX record for nstudy.info points back to nstudy.info — it is its own mail server.
IP Addresses
nstudy.info directs to one IP number, which is 183.90.180.104.
Among the host names that share IP numbers with nstudy.info are 7515.jp, mail4.chichimomi.com, orisari.cswiki.jp and two others.
Name Servers
Two name servers handle the delegation for nstudy.info: ns1.rakko.zone and ns2.rakko.zone.
nstudy.info has the same name server delegation as a number of other domains, such as dos-v.com, yosage-project.com, uc1.net and two more.
There is at least partial name server overlap between nstudy.info and other domains — pethospital.jp, wears.jp, humex.jp and two more among them.
ns1.rakko.zone → 172.64.52.196 and ns2.rakko.zone → 172.64.53.134: one IP number per host name.
Mail Servers
The MX record for nstudy.info points to a single mail server: nstudy.info.
nstudy.info carries a single IP number, which is 183.90.180.104.