`gls-czech.com`

DNSSEC	⚠️ Not signed
A	194.228.175.140^{🇨🇿 O2-CZECH-REPUBLIC194.228.128.0/17 CZ.CZNET}
		PTR	`nula.gls-czech.com`
NS	`ns1.gls-czech.com` ⭐
		A	80.188.15.106^{🇨🇿 O2-CZECH-REPUBLIC80.188.0.0/17 CZ.CZNET}
			PTR	`mail2.gls-czech.com`
NS	`ns2.gls-czech.com`
		A	212.52.164.67^{🇭🇺 INTEGRITY-HU-AS212.52.164.0/24}
			PTR	`212.52.164.67.reverse.hu`
MX	`glsczech-com0i.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:ca04::^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db3pr0202cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::6^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db4pr02cu00406.inbound.protection.outlook.com`
		A	2a01:111:f403:ca04::f^{🇮🇪 Microsoft2a01:111:f000::/36}
			PTR	`mail-db7pr03cu00507.inbound.protection.outlook.com`
		A	2a01:111:f403:ca09::e^{🇳🇱 Microsoft2a01:111:f000::/36}
			PTR	`mail-am7pr05cu00206.inbound.protection.outlook.com`
		A	52.101.68.25^{🇮🇪 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-db8pr02cu00101.inbound.protection.outlook.com`
		A	52.101.73.4^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am0pr83cu00404.inbound.protection.outlook.com`
		A	52.101.73.15^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-am9pr04cu00107.inbound.protection.outlook.com`
		A	52.101.73.153^{🇳🇱 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-as8pr05cu00401.inbound.protection.outlook.com`
TXT	`v=spf1 include:_spf.gls-hungary.com include:spf.protection.outlook.com includ...`
TXT	`google-site-verification=8wdm_Ai2H0DyTS6UszLcAt4V16O6KouC75_IEhf4e4U`
TXT	`ms-domain-verification=386747bd-15ab-4ca1-932e-fdadee62b95d`
TXT	`miro-verification=b5659d1b89287001299e4c3535edab3f00499736`
TXT	`MS=ms38411908`
TXT	`atlassian-domain-verification=eJlbJ50yxTh/ooMttEYqTk9PbaMD40C3ToZxZSKJr8kAnwN...`
SOA	`ns1.gls-czech.com`hostmaster@gls-czech.com 2026-05-10 #1

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1778670001

Subdomains

online.gls-czech.com

ns2.gls-czech.com

mail.gls-czech.com

ns1.gls-czech.com

www.gls-czech.com

mail3.gls-czech.com

mail2.gls-czech.com

webserver.gls-czech.com

nula.gls-czech.com

lnx.gls-czech.com

lnx2.gls-czech.com

Same first word

gls-czech.net

gls-czech.cz

gls-czech.com

DNS History

12 records (4 active, 8 former)

○NSns.euroweb.hu2015-08-21 → 2015-08-21 · 3 obs

● 2015-08-21 04:22:50
○ 2015-09-10 08:40:14
○ 2026-05-13 11:01:04

○NSns.gls-czech.com2015-08-21 → 2015-08-21 · 3 obs

● 2015-08-21 04:22:50
○ 2015-09-10 08:40:14
○ 2026-05-13 11:01:04

●NSns1.gls-czech.com2015-09-10 → 2026-05-13 · 3 obs

○ 2015-08-21 04:22:50
● 2015-09-10 08:40:14
● 2026-05-13 11:01:04

●NSns2.gls-czech.com2015-09-10 → 2026-05-13 · 3 obs

○ 2015-08-21 04:22:50
● 2015-09-10 08:40:14
● 2026-05-13 11:01:04

○MXemail.exchange4u.cz2016-05-10 → 2017-03-26 · 5 obs

○ 2016-04-25 05:42:28
● 2016-05-10 13:08:24
● 2017-03-26 18:55:54
○ 2026-02-16 23:41:40
○ 2026-05-13 11:01:04

●MXglsczech-com0i.mail.protection.outlook.com2026-02-16 → 2026-05-13 · 3 obs

○ 2017-03-26 18:55:54
● 2026-02-16 23:41:40
● 2026-05-13 11:01:04

○MXmail.cloudmail.cz2015-08-21 → 2016-04-25 · 4 obs

● 2015-08-21 04:22:50
● 2016-04-25 05:42:28
○ 2016-05-10 13:08:24
○ 2026-05-13 11:01:04

○MXmail.gls-czech.com2015-08-21 → 2017-03-26 · 4 obs

● 2015-08-21 04:22:50
● 2017-03-26 18:55:54
○ 2026-02-16 23:41:40
○ 2026-05-13 11:01:04

○MXmail1.cloudmail.cz2015-08-21 → 2015-11-10 · 4 obs

● 2015-08-21 04:22:50
● 2015-11-10 22:40:20
○ 2015-12-07 18:35:48
○ 2026-05-13 11:01:04

○MXmail2.cloudmail.cz2015-08-21 → 2015-11-10 · 4 obs

● 2015-08-21 04:22:50
● 2015-11-10 22:40:20
○ 2015-12-07 18:35:48
○ 2026-05-13 11:01:04

○A109.123.196.982015-08-21 → 2017-03-26 · 4 obs

● 2015-08-21 04:22:50
● 2017-03-26 18:55:54
○ 2026-02-16 23:41:40
○ 2026-05-13 11:01:04

●A194.228.175.1402026-02-16 → 2026-05-13 · 3 obs

○ 2017-03-26 18:55:54
● 2026-02-16 23:41:40
● 2026-05-13 11:01:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	b.gtld-servers.net, c.gtld-servers.net, f.gtld-servers.net, d.gtld-servers.net...	-
gls-czech.com	ns1.gls-czech.com, ns2.gls-czech.com	2 records

✅ Authoritative Response

Server:212.52.164.67

NS records: ns1.gls-czech.com, ns2.gls-czech.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gls-czech.com (unsigned zone)

⏱️ Timing

Total: 557ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`194.228.175.140`
NS	2	`ns1.gls-czech.com, ns2.gls-czech.com`
MX	1	`glsczech-com0i.mail.protection.outlook.c`
TXT	6	`v=spf1 include:_spf.gls-hungary.com incl, google-site-verification=8wdm_Ai2H0DyTS6...`
SOA	1	`ns1.gls-czech.com hostmaster.gls-czech.c`

📌 Glue Records Collected

Total: 2

In-bailiwick: 2 (ns1.gls-czech.com, ns2.gls-czech.com)

Analysis

Hierarchy

gls-czech.com is the parent of online.gls-czech.com, ns2.gls-czech.com, mail.gls-czech.com, ns1.gls-czech.com, www.gls-czech.com and a few other host names.

IP Addresses

gls-czech.com resolves to one IP number: 194.228.175.140.

other host names including nula.gls-czech.cz, gls-czech.cz, e-balik.cz, nula.gls-czech.com and gls-balik.cz share IP numbers with gls-czech.com.

Name Servers

gls-czech.com is delegated to two name servers ns1.gls-czech.com and ns2.gls-czech.com.

Host names with one IP number:

ns1.gls-czech.com points to 80.188.15.106

ns2.gls-czech.com points to 212.52.164.67

Mail Servers

gls-czech.com is handled by a single mail server, glsczech-com0i.mail.protection.outlook.com.

Host glsczech-com0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::, 2a01:111:f403:ca04::6, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::e, 52.101.68.25, 52.101.73.4, 52.101.73.15 and 52.101.73.153.

gls-czech.com - robtex.com

gls-czech.com

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