stud.su - dns.ninja

stud.su

DNSSEC⚠️ Not signed
A158.220.103.241🇩🇪 CONTABO158.220.96.0/20
PTRvmi1513402.contaboserver.net
NSns1.contabo.net ⭐
A2a02:c207:ff00:1200::1🇩🇪 CONTABO2a02:c207::/32
A5.180.150.13🇺🇸 CONTABO5.180.150.0/24
PTRns1.contabo.net
NSns2.contabo.net
A2a02:c202:5028:1200::1🇩🇪 CONTABO2a02:c202::/32
A195.179.224.10🇩🇪 CONTABO195.179.224.0/21
PTRns2.contabo.net
NSns3.contabo.net
A2605:a140:5028:1200::1🇺🇸 CONTABO-USA2605:a140::/32 Contabo Inc. 710 N Tucker Blvd. STE 420 St. Louis, MO 63101 US
A209.126.15.15🇺🇸 CONTABO-USA209.126.0.0/20 710 N Tucker Blvd. STE 400A St. Louis MO 63101 United States
PTRns3.contabo.net
MXmail.stud.su ⭐
A158.220.103.241🇩🇪 CONTABO158.220.96.0/20
PTRvmi1513402.contaboserver.net
SOAns1.contabo.nethostmaster@contabo.de serial=1785940794

su

DNSSEC🔒 Signed (DS record present)
NSa.dns.ripn.net ⭐
NSb.dns.ripn.net
NSc.tld-servers.ru
NSd.dns.ripn.net
NSe.dns.ripn.net
NSf.dns.ripn.net
SOAa.dns.ripn.nethostmaster@ripn.net serial=650210098
WOT: UNKNOWN (13/100)
⚠️ On DNS blocklist: spam-tlds

Subdomains

mail.stud.su

Same first word

stud.biz
stud.market
stud.no
stud.cloud
stud.ca
stud.com.ua
stud.in
stud.ru
stud.uz
stud.fi
stud.by
stud.pro
stud.cz
stud.us
stud.dog
stud.at
stud.cn
stud.de
stud.nl
stud.eu
stud.net
stud.media
stud.(0x787878)
stud.es
stud.fr
stud.ws
stud.org
stud.com
stud.wiki
stud.me
stud.se
stud.info
stud.ba
stud.lt
stud.it
stud.kz
stud.io
stud.co.za
stud.su
stud.center
stud.ch
stud.in.ua
stud.co
stud.ro
stud.vg
stud.be

Similar names

udst.ru
usdt.biz
dstu.de
usdt.de
tusd.org
sudt.com
stdu.edu.cn
dust.estate
sutd.ru
utds.de
dstu.com.ua
duts.org
sutd.com
tdus.com
duts.de
usdt.casino
dust.co.uk
tsdu.com
tuds.org
dust.ca
dust.me
duts.ru
dust.sk
udst.com
duts.fr
dust.rs
sutd.sg
dstu.dk
dtsu.xyz
utds.al
tusd.us
dstu.education
duts.shop
dust.co.nz
duts.net
sutd.edu.sg
dust.wiki
usdt.com.ve
dust.events
tusd.io
dstu.dp.ua
usdt.kr
udst.edu.qa
usdt.org
dust.com
usdt.mv
tusd.tech
utds.ru
dust.be
duts.in
usdt.ac
udts.dz
tuds.net
tdus.eu
dust.ltd
udst.se
dsut.org
tusd.de
dust.info
dstu.cn
tuds.com.br
dstu.org
usdt.today
dust.foundation
sdut.me
dstu.com
usdt.supply
usdt.com
tdus.co
dust.no
dust.org
usdt.org.im
udts.org
dust.net
dust.eu
usdt.adult
duts.us
duts.com
dust.co
dust.cx
tdus.ru
utsd.com

DNS History

19 records (5 active, 14 former)

20162017201820192020202120222023202420252026NSns1.contabo.netns2.contabo.netns3.contabo.netns1.digitalocean.comns1.eurobyte.runs2.digitalocean.comns2.eurobyte.runs3.digitalocean.comns3.eurobyte.runs4.eurobyte.ruMXmail.stud.sualt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comA158.220.103.241188.226.180.11546.30.42.237
●NSns1.contabo.net2026-02-15 → 2026-08-05 · 3 obs
○ 2019-09-04 06:42:20
● 2026-02-15 11:47:16
● 2026-08-05 14:39:54
○NSns1.digitalocean.com2015-08-06 → 2015-12-05 · 4 obs
● 2015-08-06 05:33:26
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-08-05 14:39:54
○NSns1.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
○ 2015-12-05 15:55:24
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
●NSns2.contabo.net2026-02-15 → 2026-08-05 · 3 obs
○ 2019-09-04 06:42:20
● 2026-02-15 11:47:16
● 2026-08-05 14:39:54
○NSns2.digitalocean.com2015-08-06 → 2015-12-05 · 4 obs
● 2015-08-06 05:33:26
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-08-05 14:39:54
○NSns2.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
○ 2015-12-05 15:55:24
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
●NSns3.contabo.net2026-02-15 → 2026-08-05 · 3 obs
○ 2019-09-04 06:42:20
● 2026-02-15 11:47:16
● 2026-08-05 14:39:54
○NSns3.digitalocean.com2015-08-06 → 2015-12-05 · 4 obs
● 2015-08-06 05:33:26
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-08-05 14:39:54
○NSns3.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
○ 2015-12-05 15:55:24
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
○NSns4.eurobyte.ru2016-02-29 → 2019-09-04 · 5 obs
○ 2015-12-05 15:55:24
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
○MXalt1.aspmx.l.google.com2016-02-29 → 2019-09-04 · 4 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
○MXalt2.aspmx.l.google.com2016-02-29 → 2019-09-04 · 4 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
○MXaspmx.l.google.com2016-02-29 → 2019-09-04 · 4 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
○MXaspmx2.googlemail.com2016-02-29 → 2019-09-04 · 4 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
○MXaspmx3.googlemail.com2016-02-29 → 2019-09-04 · 4 obs
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54
●MXmail.stud.su2026-02-15 → 2026-08-05 · 3 obs
○ 2019-09-04 06:42:20
● 2026-02-15 11:47:16
● 2026-08-05 14:39:54
●A158.220.103.2412026-02-15 → 2026-08-05 · 3 obs
○ 2019-09-04 06:42:20
● 2026-02-15 11:47:16
● 2026-08-05 14:39:54
○A188.226.180.1152015-08-06 → 2015-12-05 · 4 obs
● 2015-08-06 05:33:26
● 2015-12-05 15:55:24
○ 2016-02-29 09:30:50
○ 2026-08-05 14:39:54
○A46.30.42.2372016-02-29 → 2019-09-04 · 5 obs
○ 2015-12-05 15:55:24
● 2016-02-29 09:30:50
● 2019-09-04 06:42:20
○ 2026-02-15 11:47:16
○ 2026-08-05 14:39:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
sua.dns.ripn.net, b.dns.ripn.net, c.tld-servers.ru, d.dns.ripn.net...12 records
stud.suns2.contabo.net, ns3.contabo.net, ns1.contabo.net-

✅ Authoritative Response

Server:5.180.150.13

NS records: ns2.contabo.net, ns3.contabo.net, ns1.contabo.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for stud.su (unsigned zone)

⏱️ Timing

Total: 995ms | Queries: -

📄 Records

TypeCountSample Data
A1158.220.103.241
NS3ns3.contabo.net, ns2.contabo.net...
MX1mail.stud.su (pri: 10)
SOA1ns1.contabo.net hostmaster.contabo.de

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (a.dns.ripn.net, a.dns.ripn.net, b.dns.ripn.net...)

Analysis

Hierarchy

mail.stud.su is a subdomain of stud.su.

IP Addresses

stud.su directs to one IP number, which is 158.220.103.241.

Among the host names that share IP numbers with stud.su are mail.super-traf.ru, mail.sitestatus.co.za, vmi1513402.contaboserver.net and two others.

Name Servers

stud.su is served by three name servers: ns1.contabo.net, ns2.contabo.net and ns3.contabo.net.

The name servers of stud.su overlap at least partially with those of other domains — among them 177.146.62.in-addr.arpa, dearsplanet.com, vegatestsliven.bg and two more.

The hostnames ns1.contabo.net, ns2.contabo.net and ns3.contabo.net each direct to two IP addresses — ns1.contabo.net to 5.180.150.13 and 2a02:c207:ff00:1200::1, ns2.contabo.net to 195.179.224.10 and 2a02:c202:5028:1200::1, and ns3.contabo.net to 209.126.15.15 and 2605:a140:5028:1200::1.

Mail Servers

stud.su routes its mail through a single mail server, mail.stud.su.

mail.stud.su resolves to 158.220.103.241 and no other IP number.