string.cz - dns.ninja

`string.cz`

DNSSEC	⚠️ Not signed
A	212.158.143.25^{🇨🇿 BlueTone-AS212.158.128.0/19 BlueTone-CRa-CZ First address block}
NS	`ns2.sdserver.cz` ⭐
		A	212.158.143.16^{🇨🇿 BlueTone-AS212.158.128.0/19 BlueTone-CRa-CZ First address block}
NS	`ns.sdserver.cz` ⚠️ Not in parent delegation
		A	212.158.143.10^{🇨🇿 BlueTone-AS212.158.128.0/19 BlueTone-CRa-CZ First address block}
NS	`ns3.sdserver.cz`
		A	84.244.96.162^{🇨🇿 BlueTone-AS84.244.64.0/18 BlueTone-CRa-CZ Third address block}
NS	`ns4.sdserver.cz`
MX	`sdmail2.sdserver.cz` ⭐
		A	212.158.143.88^{🇨🇿 BlueTone-AS212.158.128.0/19 BlueTone-CRa-CZ First address block}
TXT	`MS=ms43141353`
SOA	`ns.sdserver.cz`dns-admin@stringdata.cz 2017-10-16 #7

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1781821038

Same first word

string.capital

string.nl

string.ly

string.lu

string.pl

string.money

string.network

string.es

string.lt

string.ch

string.io

string.eu

string.se

string.chat

string.me

string.cn

string.hu

string.ro

string.ltd

string.org

string.be

string.world

string.com.br

string.at

string.de

string.systems

string.email

string.exchange

string.ai

string.co.il

string.net

string.tips

string.cz

string.global

string.pro

string.no

string.marketing

string.info

string.com.mx

string.awsapps.com

string.solutions

string.co

string.ca

string.gy

string.fr

string.rocks

string.bet

string.technology

string.dk

string.community

string.com

string.biz

Similar names

grints.com

instgr.com

gsrint.com

grsint.com

signrt.website

stingr.net

rtsing.com

rtings.com

stingr.com

intgrs.com

stirng.com

nrgist.nu

rsgint.com

ginstr.com

ingstr.com

sringt.com

stingr.info

grsint.cl

signtr.com

gsrint.com.au

trings.com

grinst.de

rtings.net

instgr.net

nrgist.com

ringst.com

signrt.online

grtins.com

signtr.online

rgsint.com

sgrint.com

rtsign.com

strign.com

DNS History

11 records (6 active, 5 former)

●NSns.sdserver.cz2026-02-14 → 2026-06-18 · 3 obs

○ 2017-02-19 00:45:38
● 2026-02-14 20:41:04
● 2026-06-18 23:31:46

○NSns1.sdserver.cz2015-08-16 → 2017-02-19 · 4 obs

● 2015-08-16 12:34:32
● 2017-02-19 00:45:38
○ 2026-02-14 20:41:04
○ 2026-06-18 23:31:46

●NSns2.sdserver.cz2015-08-16 → 2026-06-18 · 2 obs

● 2015-08-16 12:34:32
● 2026-06-18 23:31:46

●NSns3.sdserver.cz2015-08-16 → 2026-06-18 · 2 obs

● 2015-08-16 12:34:32
● 2026-06-18 23:31:46

●NSns4.sdserver.cz2015-08-16 → 2026-06-18 · 8 obs

● 2015-08-16 12:34:32
● 2026-02-14 20:41:04
○ 2026-03-13 17:38:18
● 2026-03-17 16:46:52
● 2026-05-13 06:18:34
○ 2026-05-16 11:56:54
● 2026-06-18 23:31:44
● 2026-06-18 23:31:46

○NSsrv1.sdserver.cz2015-08-16 → 2017-02-19 · 4 obs

● 2015-08-16 12:34:32
● 2017-02-19 00:45:38
○ 2026-02-14 20:41:04
○ 2026-06-18 23:31:46

○MXmail2.sdserver.cz2015-08-16 → 2017-02-19 · 4 obs

● 2015-08-16 12:34:32
● 2017-02-19 00:45:38
○ 2026-02-14 20:41:04
○ 2026-06-18 23:31:46

○MXsdmail.sdserver.cz2015-08-16 → 2016-03-27 · 4 obs

● 2015-08-16 12:34:32
● 2016-03-27 22:22:02
○ 2017-02-19 00:45:38
○ 2026-06-18 23:31:46

●MXsdmail2.sdserver.cz2017-02-19 → 2026-06-18 · 6 obs

○ 2016-03-27 22:22:02
● 2017-02-19 00:45:38
● 2026-05-06 12:01:50
○ 2026-05-08 01:04:50
● 2026-05-09 16:06:24
● 2026-06-18 23:31:46

●A212.158.143.252026-02-14 → 2026-06-18 · 3 obs

○ 2017-02-19 00:45:38
● 2026-02-14 20:41:04
● 2026-06-18 23:31:46

○A81.0.239.662015-08-16 → 2016-03-27 · 4 obs

● 2015-08-16 12:34:32
● 2016-03-27 22:22:02
○ 2017-02-19 00:45:38
○ 2026-06-18 23:31:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
string.cz	ns.sdserver.cz, ns2.sdserver.cz, ns3.sdserver.cz	3 records

✅ Authoritative Response

Server:84.244.96.162

NS records: ns.sdserver.cz, ns2.sdserver.cz, ns3.sdserver.cz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for string.cz (unsigned zone)

⏱️ Timing

Total: 982ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`ns.sdserver.cz, ns4.sdserver.cz...`
MX	1	`sdmail2.sdserver.cz (pri: 10)`
TXT	1	`MS=ms43141353`
SOA	1	`ns.sdserver.cz dns-admin.stringdata.cz`

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns.sdserver.cz, ns2.sdserver.cz, ns3.sdserver.cz)

Analysis

IP Addresses

string.cz points to a single IP number: 212.158.143.25.

Additional host names — stringdata.eu, stringdata.info, simsuite.cz and two others — share IP numbers with string.cz.

Name Servers

string.cz has four authoritative name servers: ns2.sdserver.cz, ns3.sdserver.cz, ns4.sdserver.cz and ns.sdserver.cz.

There is at least partial name server overlap between string.cz and other domains — stringdata.cz, pbox.cz, stringdata.sk and two more among them.

These name servers frequently co-occur with the name servers ns1.sdserver.cz and ns1.bluetone.cz.

The hostnames ns2.sdserver.cz, ns3.sdserver.cz and ns.sdserver.cz each resolve to a single IP: ns2.sdserver.cz → 212.158.143.16, ns3.sdserver.cz → 84.244.96.162, ns.sdserver.cz → 212.158.143.10.

Mail Servers

string.cz has one mail server: sdmail2.sdserver.cz.

string.cz and a number of other domains — sdserver.cz, stringdata.sk, stringdata.com and ultimaterpa.com among them — share at least some of the same mail servers.

These mail servers are routinely seen in conjunction with the mail servers sdmail3.sdserver.cz and sdmail.sdserver.cz.

sdmail2.sdserver.cz directs to just one IP number, 212.158.143.88.