4sr.com - robtex.com

4sr.com

DNSSEC🔒 Signed (DS record present)
A93.185.102.80🇨🇿 VSHOSTING93.185.96.0/20 II.
PTRftsun.vshosting.cz
NSns1.websupport.cz ⭐ 🔒
A2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32
PTRns1.websupport.eu
A45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24
PTRns1.websupport.eu
NSns2.websupport.cz 🔒
A2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48
PTRns2.websupport.eu
A185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24
PTRns2.websupport.eu
NSns3.websupport.eu 🔒
A2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32
PTRns3.websupport.eu
A45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24
PTRns3.websupport.eu
MXdae35c73338296cc.mx2.emailprofi.seznam.cz ⭐
A2a02:598:2::1146🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx2.emailprofi.seznam.cz
A77.75.77.146🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx2.emailprofi.seznam.cz
MXdae35c73338296cc.mx1.emailprofi.seznam.cz(20)
A2a02:598:2::1056🇨🇿 SEZNAM-CZ2a02:598:2::/48
PTRwildcard.mx1.emailprofi.seznam.cz
A77.75.77.56🇨🇿 SEZNAM-CZ77.75.76.0/23 SEZNAM - III
PTRwildcard.mx1.emailprofi.seznam.cz
TXTfacebook-domain-verification=4j7dp1fotwbyu47affi9ahsemv5fnn
TXTv=spf1 mx a ip4:193.105.159.120/32 ip4:78.24.14.91 ip4:78.24.14.20 ip4:78.24....
SOAns1.websupport.czadmin@websupport.cz serial=1730457592

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1771291435

Up

mail.4sr.com

Same first word

4sr.de
4sr.us
4sr.pl
4sr.ru
4sr.cc
4sr.nl
4sr.com.br
4sr.co.uk
4sr.eu
4sr.org
4sr.at
4sr.net
4sr.cz
4sr.com
4sr.es
4sr.cn
4sr.it
4sr.com.au
4sr.sk
4sr.inf.br
4sr.uk

Similar names

4rs.ie
s4r.jp
4rs.net
r4s.cc
4rs.pt
rs4.in
sr4.nl
rs4.com
r4s.me
s4r.biz
rs4.org
rs4.nl
rs4.ch
sr4.us
s4r.pl
s4r.io
r4s.org
s4r.ca
sr4.de
4rs.us
4rs.cn
sr4.sakura.ne.jp
4rs.com
s4r.group
s4r.it
rs4.dk
sr4.com
r4s.de
s4r.de
sr4.su
sr4.org
4rs.org
sr4.ru
rs4.cn
rs4.es
r4s.be
s4r.net
r4s.it
r4s.com
s4r.com
4rs.ru
4rs.de
4rs.mobi
r4s.net
rs4.us
rs4.net
s4r.eu
r4s.ru
rs4.me
rs4.fr
sr4.net
rs4.co.kr
4rs.nl
4rs.eu
s4r.ch
r4s.info

DNS History

9 records (6 active, 3 former)

20162017201820192020202120222023202420252026NSns1.websupport.czns2.websupport.czns3.websupport.euns25.domaincontrol.comns26.domaincontrol.comMXdae35c73338296cc.mx1.emailprofi.seznam.czdae35c73338296cc.mx2.emailprofi.seznam.czmail.4sr.comA93.185.102.80
●NSns1.websupport.cz2026-02-25 → 2026-02-25 · 3 obs
○ 2016-04-09 08:39:54
● 2026-02-25 21:41:32
● 2026-02-25 21:41:34
●NSns2.websupport.cz2026-02-25 → 2026-02-25 · 3 obs
○ 2016-04-09 08:39:54
● 2026-02-25 21:41:32
● 2026-02-25 21:41:34
○NSns25.domaincontrol.com2015-08-04 → 2016-04-09 · 4 obs
● 2015-08-04 02:37:24
● 2016-04-09 08:39:54
○ 2026-02-25 21:41:32
○ 2026-02-25 21:41:34
○NSns26.domaincontrol.com2015-08-04 → 2016-04-09 · 4 obs
● 2015-08-04 02:37:24
● 2016-04-09 08:39:54
○ 2026-02-25 21:41:32
○ 2026-02-25 21:41:34
●NSns3.websupport.eu2026-02-25 → 2026-02-25 · 3 obs
○ 2016-04-09 08:39:54
● 2026-02-25 21:41:32
● 2026-02-25 21:41:34
●MXdae35c73338296cc.mx1.emailprofi.seznam.cz2026-02-25 → 2026-02-25 · 3 obs
○ 2016-04-09 08:39:54
● 2026-02-25 21:41:32
● 2026-02-25 21:41:34
●MXdae35c73338296cc.mx2.emailprofi.seznam.cz2026-02-25 → 2026-02-25 · 3 obs
○ 2016-04-09 08:39:54
● 2026-02-25 21:41:32
● 2026-02-25 21:41:34
○MXmail.4sr.com2015-08-04 → 2016-04-09 · 4 obs
● 2015-08-04 02:37:24
● 2016-04-09 08:39:54
○ 2026-02-25 21:41:32
○ 2026-02-25 21:41:34
●A93.185.102.802015-08-04 → 2026-02-25 · 2 obs
● 2015-08-04 02:37:24
● 2026-02-25 21:41:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
4sr.comns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu-

✅ Authoritative Response

Server: 45.10.97.11

NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4sr.com (unsigned zone)

⏱️ Timing

Total: 213ms | Queries: -

📄 Records

TypeCountSample Data
A193.185.102.80
NS3ns1.websupport.cz, ns2.websupport.cz...
MX2dae35c73338296cc.mx2.emailprofi.seznam.c, dae35c73338296cc.mx1.emailprofi.seznam.c
TXT2facebook-domain-verification=4j7dp1fotwb, v=spf1 mx a ip4:193.105.159.120/32 ip4:7
SOA1ns1.websupport.cz admin.websupport.cz

AI analysis

mail.4sr.com is a child of 4sr.com.

4sr.com resolves to one IP number: 93.185.102.80.

Other host names, for instance jihostroj.cz, risjk.cz, ledax.cz, aime.sk and czechia-hotels.cz share IP numbers with 4sr.com.

4sr.com is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.

4sr.com at least partially shares name servers with other domains, including artplace.cz, etron.cz, jankupka.com, marekskarpa.cz and halla-osvetleni.com.

Host names with two IP numbers:

ns1.websupport.cz: 2a10:bbc0::11 and 45.10.97.11

ns2.websupport.cz: 2a02:250:3::12 and 185.71.159.12

ns3.websupport.eu: 2a10:bbc0::13 and 45.10.97.13

4sr.com is served by two mail servers dae35c73338296cc.mx1.emailprofi.seznam.cz and dae35c73338296cc.mx2.emailprofi.seznam.cz.

Host names with two IPs:

dae35c73338296cc.mx1.emailprofi.seznam.cz points to 2a02:598:2::1056 and 77.75.77.56

dae35c73338296cc.mx2.emailprofi.seznam.cz points to 2a02:598:2::1146 and 77.75.77.146