cstring.cz - robtex.com

cstring.cz

DNSSEC🔒 Signed (DS record present)
A185.64.219.37🇨🇿 VSHOSTING185.64.216.0/22 V.
PTRshoptet-lb-prot.vshosting.cz
NSns1.thinline.cz ⭐
A2001:67c:e94:0:1:5bef:c8f3:1Blindspot2001:67c:e94::/48 THINLINE-BlindSpot
PTRns1.thinline.cz
A91.239.200.243🇨🇿 Blindspot91.239.200.0/23 THINLINE-BlindSpot
PTRns1.thinline.cz
NSns2.thinline.cz
A2001:4de8:fa22:0:1:5264:602:1🇨🇿 QUANTCOM-AS2001:4de8::/32 Dial Telecom, a.s.
PTRns2.thinline.cz
A82.100.6.2🇨🇿 QUANTCOM-AS82.100.0.0/18 Dial Telecom, a.s.
PTRns2.thinline.cz
NSns3.cesky-hosting.eu
A2001:67c:e94:1:1:5bef:ca12:1Blindspot2001:67c:e94::/48 THINLINE-BlindSpot
PTRns3.cesky-hosting.eu
A91.239.202.18🇨🇿 Blindspot91.239.202.0/23 THINLINE-BlindSpot
PTRns3.cesky-hosting.eu
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c09::1a🇺🇸 Google2607:f8b0:4004::/48
PTRbh-in-f26.1e100.net
A192.178.155.26🇺🇸 Google192.178.155.0/24
PTRyuiadrs-in-f26.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c02::1b🇮🇪 Google2a00:1450:400b::/48
PTRdj-in-f27.1e100.net
A172.253.116.27🇺🇸 Google172.253.116.0/24
PTRdj-in-f27.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1b🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f27.1e100.net
A192.178.223.27🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f27.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1b🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f27.1e100.net
A172.253.157.27🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f27.1e100.net
TXTv=DMARC1; p=none
TXTv=spf1 a mx include:_spf.myshoptet.com include:servers.mcsv.net include:_spf....
SOAns1.thinline.czhostmaster@cstring.cz serial=1533053828

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1785178039

Same first word

cstring.nl
cstring.cz
cstring.com
cstring.de
cstring.net

Similar names

tsgrinc.com
ctrsign.com
tcrings.com
crtsign.com

DNS History

11 records (9 active, 2 former)

20162017201820192020202120222023202420252026NSns1.thinline.czns2.thinline.czns3.cesky-hosting.euMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.commail.cstring.czA185.64.219.3785.118.132.2
●NSns1.thinline.cz2015-07-23 → 2026-07-27 · 2 obs
● 2015-07-23 11:48:04
● 2026-07-27 19:49:16
●NSns2.thinline.cz2015-07-23 → 2026-07-27 · 2 obs
● 2015-07-23 11:48:04
● 2026-07-27 19:49:16
●NSns3.cesky-hosting.eu2015-07-23 → 2026-07-27 · 2 obs
● 2015-07-23 11:48:04
● 2026-07-27 19:49:16
●MXalt1.aspmx.l.google.com2017-03-13 → 2026-07-27 · 3 obs
○ 2016-07-07 03:36:46
● 2017-03-13 02:27:20
● 2026-07-27 19:49:16
●MXalt2.aspmx.l.google.com2017-03-13 → 2026-07-27 · 3 obs
○ 2016-07-07 03:36:46
● 2017-03-13 02:27:20
● 2026-07-27 19:49:16
●MXalt3.aspmx.l.google.com2017-03-13 → 2026-07-27 · 3 obs
○ 2016-07-07 03:36:46
● 2017-03-13 02:27:20
● 2026-07-27 19:49:16
●MXalt4.aspmx.l.google.com2017-03-13 → 2026-07-27 · 3 obs
○ 2016-07-07 03:36:46
● 2017-03-13 02:27:20
● 2026-07-27 19:49:16
●MXaspmx.l.google.com2017-03-13 → 2026-07-27 · 3 obs
○ 2016-07-07 03:36:46
● 2017-03-13 02:27:20
● 2026-07-27 19:49:16
○MXmail.cstring.cz2015-07-23 → 2016-07-07 · 4 obs
● 2015-07-23 11:48:04
● 2016-07-07 03:36:46
○ 2017-03-13 02:27:20
○ 2026-07-27 19:49:16
●A185.64.219.372026-04-20 → 2026-07-27 · 3 obs
○ 2017-03-13 02:27:20
● 2026-04-20 01:49:16
● 2026-07-27 19:49:16
○A85.118.132.22015-07-23 → 2017-03-13 · 4 obs
● 2015-07-23 11:48:04
● 2017-03-13 02:27:20
○ 2026-04-20 01:49:16
○ 2026-07-27 19:49:16

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
cstring.czns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu4 records

✅ Authoritative Response

Server:91.239.202.18

NS records: ns1.thinline.cz, ns2.thinline.cz, ns3.cesky-hosting.eu

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1315ms | Queries: -

📄 Records

TypeCountSample Data
A1185.64.219.37
NS3ns1.thinline.cz, ns2.thinline.cz...
MX5alt4.aspmx.l.google.com (pri: 10), aspmx.l.google.com (pri: 1)...
TXT2v=DMARC1; p=none, v=spf1 a mx include:_spf.myshoptet.com i
SOA1ns1.thinline.cz hostmaster.cstring.cz

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.thinline.cz, ns1.thinline.cz, ns2.thinline.cz...)

Analysis

IP Addresses

cstring.cz resolves to just one IP address, 185.64.219.37.

Two other host names, along with irt.cz, elepele.com and dmania.cz, also share IP numbers with cstring.cz.

Name Servers

cstring.cz is served by three name servers: ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu.

There is at least partial name server overlap between cstring.cz and other domains — poolspa.sk, witea.cz, viks.cz and two more among them.

The hostnames ns1.thinline.cz, ns2.thinline.cz and ns3.cesky-hosting.eu each direct to two IP addresses — ns1.thinline.cz to 91.239.200.243 and 2001:67c:e94:0:1:5bef:c8f3:1, ns2.thinline.cz to 82.100.6.2 and 2001:4de8:fa22:0:1:5264:602:1, and ns3.cesky-hosting.eu to 91.239.202.18 and 2001:67c:e94:1:1:5bef:ca12:1.

Mail Servers

Five mail servers handle cstring.cz: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between cstring.cz and other domains, including artbycarola.com, ns500821.ns500821.ns500821.ns500794.ns500795.ns500821.ns500794.ns500795.ns500794.ns500794.ns500821.ns500821.ns500790.ns500795.lustypartnersfinder.com, theecommerce.club and two others.

alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and aspmx3.googlemail.com are mail servers that frequently appear together with these mail servers.

Host names that have two IP addresses:

The A records for aspmx.l.google.com return 192.178.155.26 and 2607:f8b0:4004:c09::1a.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 172.253.116.27 and 2a00:1450:400b:c02::1b.

The A records for alt3.aspmx.l.google.com return 192.178.223.27 and 2a00:1450:4009:c0f::1b.

The A records for alt4.aspmx.l.google.com return 172.253.157.27 and 2a00:1450:400c:c23::1b.