cstt.sk - robtex.com

cstt.sk

DNSSEC⚠️ Not signed
A2a10:9c80::193:163:77:9🇸🇰 VNET-AS2a10:9c80::/29 Vnet HostCreators
PTRs7.hostcreators.sk
A193.163.77.9🇸🇰 VNET-AS193.163.77.0/24 Vnet HostCreators
NSauth1.ns.swan.sk ⭐
A217.75.71.143🇸🇰 AS-BENESTRA217.75.64.0/19 SWAN
PTRservice3.swan.sk
NSauth2.ns.swan.sk
A193.86.13.72🇨🇿 TMOBILE-CZ193.86.0.0/16 T-Mobile Czech Republic a.s.
NSauth3.ns.swan.sk
A3.67.61.110🇩🇪 Amazon3.64.0.0/12 EC2 FRA Prefix
PTRec2-3-67-61-110.eu-central-1.compute.amazonaws.com
NSauth4.ns.swan.sk
A217.75.71.144🇸🇰 AS-BENESTRA217.75.64.0/19 SWAN
PTRservice4.swan.sk
MXcstt-sk.mail.protection.outlook.com ⭐
A2a01:111:f403:ca04::10🇮🇪 Microsoft2a01:111:f000::/36
PTRmail-dbapr03cu00100.inbound.protection.outlook.com
A2a01:111:f403:ca09::3🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am6pr04cu00303.inbound.protection.outlook.com
A2a01:111:f403:ca09::7🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am9pr04cu00107.inbound.protection.outlook.com
A2a01:111:f403:ca09::b🇳🇱 Microsoft2a01:111:f000::/36
PTRmail-am7pr05cu00103.inbound.protection.outlook.com
A52.101.68.39🇮🇪 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-db7pr03cu00607.inbound.protection.outlook.com
A52.101.73.4🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-am0pr83cu00404.inbound.protection.outlook.com
A52.101.73.24🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr05cu00300.inbound.protection.outlook.com
A52.101.73.153🇳🇱 Microsoft52.96.0.0/12 MICROSOFT
PTRmail-as8pr05cu00401.inbound.protection.outlook.com
TXTMS=ms20083367
TXTv=spf1 include:spf.protection.outlook.com -all
SOAauth1.ns.swan.skhostmaster@swan.sk 2024-06-13 #2

sk

DNSSEC🔒 Signed (DS record present)
NSm.tld.sk ⭐
NSe.tld.sk
NSf.tld.sk
NSg.tld.sk
NSh.tld.sk
SOAm.tld.skhostmaster@sk-nic.sk serial=2018581190

Same first word

cstt.net
cstt.ru
cstt.sk
cstt.lk
cstt.tw
cstt.de
cstt.shop
cstt.in
cstt.biz
cstt.org.uk
cstt.org
cstt.ca
cstt.com
cstt.nl

Similar names

sctt.ru
tstc.org
ttcs.co.nz
tstc.nl
tstc.co.th
tcst.com.tw
sttc.com.au
ttsc.net
tsct.co.uk
ttsc.k12.ca.us
tstc.de
tstc.or.kr
tsct.org.uk
ttsc.org.tw
ttsc.info
ttsc.co.kr
tsct.com
ctts.cn
sttc.com.sg
tcts.com.vn
ctst.net
tsct.nl
ctst.org.au
ttcs.school
ctts.com.br
ctts.edu.sl
ctts.in
ttcs.cc
ctts.eu
tcts.net
ttsc.de
ttsc.ca
tstc.com.vn
sctt.net.vn
ttsc.center
tstc.email
ttcs.ca
sctt.org.uk
tcts.de
tstc.bike
tsct.org
tstc.edu.cn
tstc.com.tw
sttc.fr
ctts.com.au
sttc.ch
sttc.net.cn
ctts.biz
ctts.net
sttc.eu
tcts.nl
ttcs.org.tw
tstc.gallery
tsct.com.br
ctts.gr
stct.net
ctts.cz
tcts.ir
tcst.pl
ttcs.es
ctts.com.tw
tcts.org
sttc.co.in
sttc.de
ttcs.eu
stct.fr
tstc.guru
ctts.org
sttc.org
sttc.rv.ua
tstc.edu
sttc.ac.th
stct.org
ttcs.net
tcst.ru
tstc.company
sctt.it
tstc.jobs
ttsc.co.uk
ttcs.info
sttc.com
tcts.ru
ctts.de
ttcs.me
sctt.sakura.ne.jp
ttsc.cn
sttc.biz
stct.ru
tstc.marketing
ttcs.co.ke
sttc.com.sa
tstc.careers
tstc.pro
tstc.com.cn

DNS History

9 records (7 active, 2 former)

20162017201820192020202120222023202420252026NSauth1.ns.swan.skauth2.ns.swan.skauth3.ns.swan.skauth4.ns.swan.skMXcstt-sk.mail.protection.outlook.comsmtp.mail.swan.skA193.163.77.92a10:9c80::193:163:77:9217.75.71.145
●NSauth1.ns.swan.sk2015-08-03 → 2026-07-19 · 2 obs
● 2015-08-03 20:25:02
● 2026-07-19 14:54:48
●NSauth2.ns.swan.sk2015-08-03 → 2026-07-19 · 2 obs
● 2015-08-03 20:25:02
● 2026-07-19 14:54:48
●NSauth3.ns.swan.sk2015-08-03 → 2026-07-19 · 2 obs
● 2015-08-03 20:25:02
● 2026-07-19 14:54:48
●NSauth4.ns.swan.sk2015-08-03 → 2026-07-19 · 2 obs
● 2015-08-03 20:25:02
● 2026-07-19 14:54:48
●MXcstt-sk.mail.protection.outlook.com2026-06-13 → 2026-07-19 · 3 obs
○ 2016-09-21 21:42:44
● 2026-06-13 10:01:08
● 2026-07-19 14:54:48
○MXsmtp.mail.swan.sk2015-08-03 → 2016-09-21 · 4 obs
● 2015-08-03 20:25:02
● 2016-09-21 21:42:44
○ 2026-06-13 10:01:08
○ 2026-07-19 14:54:48
●A193.163.77.92026-06-13 → 2026-07-19 · 3 obs
○ 2016-09-21 21:42:44
● 2026-06-13 10:01:08
● 2026-07-19 14:54:48
○A217.75.71.1452015-08-03 → 2016-09-21 · 4 obs
● 2015-08-03 20:25:02
● 2016-09-21 21:42:44
○ 2026-06-13 10:01:08
○ 2026-07-19 14:54:48
●A2a10:9c80::193:163:77:92026-06-13 → 2026-07-19 · 3 obs
○ 2016-09-21 21:42:44
● 2026-06-13 10:01:08
● 2026-07-19 14:54:48

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
skf.tld.sk, h.tld.sk, e.tld.sk, g.tld.sk-
cstt.skauth1.ns.swan.sk, auth2.ns.swan.sk, auth3.ns.swan.sk, auth4.ns.swan.sk4 records

✅ Authoritative Response

Server:217.75.71.144

NS records: auth1.ns.swan.sk, auth2.ns.swan.sk, auth3.ns.swan.sk, auth4.ns.swan.sk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cstt.sk (unsigned zone)

⏱️ Timing

Total: 1197ms | Queries: -

📄 Records

TypeCountSample Data
A1193.163.77.9
AAAA12a10:9c80::193:163:77:9
NS4auth3.ns.swan.sk, auth2.ns.swan.sk...
MX1cstt-sk.mail.protection.outlook.com (pri
TXT2v=spf1 include:spf.protection.outlook.co, MS=ms20083367
SOA1auth1.ns.swan.sk hostmaster.swan.sk

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (auth1.ns.swan.sk, auth2.ns.swan.sk, auth3.ns.swan.sk...)

Analysis

IP Addresses

cstt.sk resolves to the IP addresses 193.163.77.9 and 2a10:9c80::193:163:77:9

Additional host names — elix.sk, mailin1.spizza.sk, mailin1.kamen-obklady.sk and two others — share IP numbers with cstt.sk.

Name Servers

cstt.sk has four authoritative name servers: auth1.ns.swan.sk, auth2.ns.swan.sk, auth3.ns.swan.sk and auth4.ns.swan.sk.

cstt.sk shares at least some of its name servers with other domains, including marketingforum.sk, 182.168.83.in-addr.arpa, 167.26.212.in-addr.arpa and two others.

These name servers are frequently paired with the name servers linux.dodo.sk and ns.r-net.sk.

auth1.ns.swan.sk, auth2.ns.swan.sk, auth3.ns.swan.sk and auth4.ns.swan.sk each resolve to one IP address: auth1.ns.swan.sk resolves to 217.75.71.143, auth2.ns.swan.sk resolves to 193.86.13.72, auth3.ns.swan.sk resolves to 3.67.61.110 and auth4.ns.swan.sk resolves to 217.75.71.144.

Mail Servers

cstt.sk has one mail server: cstt-sk.mail.protection.outlook.com.

cstt-sk.mail.protection.outlook.com points to 8 IP numbers: 52.101.68.39, 52.101.73.4, 52.101.73.24 and 5 other.