`studentsprague.com`

DNSSEC	⚠️ Not signed
A	2001:880:0:15::235^{🇩🇪 ONE-NETWORK2001:880::/32}
		PTR	`dw352.webglobe.com`
A	185.102.21.193^{🇨🇿 ONE-NETWORK185.102.21.0/24}
NS	`ns1.webglobe.cz` ⭐ ⚠️ Not in parent delegation
		A	2a00:1e40:a:53::5^{🇸🇰 IGNUM-AS2a00:1e40:a::/48}
			PTR	`ns1-bra.core.webglobe.com`
		A	185.65.223.35^{🇸🇰 IGNUM-AS185.65.223.0/24}
			PTR	`ns1-bra.core.webglobe.com`
NS	`ns.skok.cz` ⚠️ Not in zone NS records
		A	2a00:1e40:a:53::5^{🇸🇰 IGNUM-AS2a00:1e40:a::/48}
			PTR	`ns1-bra.core.webglobe.com`
		A	185.65.223.35^{🇸🇰 IGNUM-AS185.65.223.0/24}
			PTR	`ns1-bra.core.webglobe.com`
NS	`ns2.skok.cz` ⚠️ Not in zone NS records
		A	2001:1ab0:7e1e:2::5^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
		A	217.31.48.201^{🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
NS	`ns2.webglobe.cz` ⚠️ Not in parent delegation
		A	2001:1ab0:7e1e:2::5^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
		A	217.31.48.201^{🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`ns2-prg.core.webglobe.com`
NS	`ns3.skokcz.eu` ⚠️ Not in zone NS records
		A	2a03:b0c0:1:d0::1090:2001^{🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
		A	178.62.60.201^{🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
NS	`ns3.webglobe.com` ⚠️ Not in parent delegation
		A	2a03:b0c0:1:d0::1090:2001^{🇬🇧 DIGITALOCEAN2a03:b0c0:1::/48 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
		A	178.62.60.201^{🇬🇧 DIGITALOCEAN178.62.0.0/18 DigitalOcean}
			PTR	`ns3-lon.core.webglobe.com`
MX	`mx.skok.cz` ⭐
		A	62.109.128.119^{🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`mx-lb.core.webglobe.com`
MX	`mxbackup.skok.cz`⁽²⁰⁾
		A	62.109.128.119^{🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
			PTR	`mx-lb.core.webglobe.com`
SOA	`ns1.webglobe.cz`hostmaster@skok.cz 2026-03-09 #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=1776018052

Subdomains

mail.studentsprague.com

Same first word

studentsprague.com

DNS History

27 records (10 active, 17 former)

○NSalfa.ns.active24.cz2015-06-10 → 2020-01-21 · 4 obs

● 2015-06-10 05:59:22
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

○NSbeta.ns.active24.cz2015-06-10 → 2020-01-21 · 4 obs

● 2015-06-10 05:59:22
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

○NSgama.ns.active24.sk2015-06-10 → 2020-01-21 · 4 obs

● 2015-06-10 05:59:22
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

●NSns.skok.cz2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

●NSns1.webglobe.cz2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

●NSns2.skok.cz2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

●NSns2.webglobe.cz2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

●NSns3.skokcz.eu2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

●NSns3.webglobe.com2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

○MXin.smtp.cz2016-01-15 → 2016-11-20 · 5 obs

○ 2015-10-28 03:17:46
● 2016-01-15 19:32:46
● 2016-11-20 11:17:08
○ 2020-01-21 01:13:58
○ 2026-04-12 18:38:40

○MXmail.rosti.cz2015-06-10 → 2015-10-28 · 4 obs

● 2015-06-10 05:59:22
● 2015-10-28 03:17:46
○ 2016-01-15 19:32:46
○ 2026-04-12 18:38:40

○MXmail.studentsprague.com2016-01-15 → 2020-01-21 · 5 obs

○ 2015-10-28 03:17:46
● 2016-01-15 19:32:46
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

●MXmx.skok.cz2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

○MXmx.smtp.cz2016-01-15 → 2016-11-20 · 5 obs

○ 2015-10-28 03:17:46
● 2016-01-15 19:32:46
● 2016-11-20 11:17:08
○ 2020-01-21 01:13:58
○ 2026-04-12 18:38:40

○MXmx1.active24.com2020-01-21 → 2020-01-21 · 4 obs

○ 2016-11-20 11:17:08
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

○MXmx2.active24.com2020-01-21 → 2020-01-21 · 4 obs

○ 2016-11-20 11:17:08
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

●MXmxbackup.skok.cz2026-03-06 → 2026-04-12 · 3 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-04-12 18:38:40

●A185.102.21.1932026-03-11 → 2026-04-12 · 3 obs

○ 2026-03-08 14:37:50
● 2026-03-11 02:27:16
● 2026-04-12 18:38:40

○A2001:1528:181::76:1472026-03-06 → 2026-03-08 · 5 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-03-08 14:37:50
○ 2026-03-11 02:27:16
○ 2026-04-12 18:38:40

●A2001:880:0:15::2352026-03-11 → 2026-04-12 · 3 obs

○ 2026-03-08 14:37:50
● 2026-03-11 02:27:16
● 2026-04-12 18:38:40

○A2a01:5f0:c001:125:3:0:a:12015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 05:59:22
○ 2015-10-28 03:17:46
○ 2026-04-12 18:38:40

○A2a02:4a8:ac24:110::10:1112015-10-28 → 2016-04-04 · 5 obs

○ 2015-06-10 05:59:22
● 2015-10-28 03:17:46
● 2016-04-04 06:04:10
○ 2016-11-20 11:17:08
○ 2026-04-12 18:38:40

○A2a02:4a8:ac24:110::10:552016-11-20 → 2020-01-21 · 5 obs

○ 2016-04-04 06:04:10
● 2016-11-20 11:17:08
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

○A31.15.10.1112015-10-28 → 2016-04-04 · 5 obs

○ 2015-06-10 05:59:22
● 2015-10-28 03:17:46
● 2016-04-04 06:04:10
○ 2016-11-20 11:17:08
○ 2026-04-12 18:38:40

○A31.15.10.552016-11-20 → 2020-01-21 · 5 obs

○ 2016-04-04 06:04:10
● 2016-11-20 11:17:08
● 2020-01-21 01:13:58
○ 2026-03-06 12:37:46
○ 2026-04-12 18:38:40

○A77.78.76.1472026-03-06 → 2026-03-08 · 5 obs

○ 2020-01-21 01:13:58
● 2026-03-06 12:37:46
● 2026-03-08 14:37:50
○ 2026-03-11 02:27:16
○ 2026-04-12 18:38:40

○A89.187.152.402015-06-10 → 2015-06-10 · 3 obs

● 2015-06-10 05:59:22
○ 2015-10-28 03:17:46
○ 2026-04-12 18:38:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
studentsprague.com	ns.skok.cz, ns2.skok.cz, ns3.skokcz.eu	-

✅ Authoritative Response

Server:178.62.60.201

NS records: ns.skok.cz, ns2.skok.cz, ns3.skokcz.eu

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studentsprague.com (unsigned zone)

⏱️ Timing

Total: 946ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`185.102.21.193`
AAAA	1	`2001:880:0:15::235`
NS	3	`ns1.webglobe.cz, ns3.webglobe.com...`
MX	2	`mx.skok.cz (pri: 10), mxbackup.skok.cz (pri: 20)`
SOA	1	`ns1.webglobe.cz hostmaster.skok.cz`

Analysis

Hierarchy

studentsprague.com is the parent of mail.studentsprague.com.

IP Addresses

studentsprague.com resolves to two IP numbers: 2001:880:0:15::235 and 185.102.21.193.

other host names including rtch.cz, supportedu.cz, infinitywatches.cz, cactuspoint.cz and www27.skok.cz share IP numbers with studentsprague.com.

Name Servers

studentsprague.com is delegated to six name servers: ns3.webglobe.com, ns2.skok.cz, ns.skok.cz, ns1.webglobe.cz, ns2.webglobe.cz and ns3.skokcz.eu.

studentsprague.com at least partially shares name servers with other domains, for instance keramikaportal.cz, auditview.com.cy, gerhard.cz, f1gas.info and hodise.cz.

These name servers are commonly used with ns.ebola.cz, ns1.ebola.cz, ns2.ebola.cz, ns1.webglobe.sk and ns2.webglobe.sk.

Host names with two IPs:

ns3.webglobe.com points to 2a03:b0c0:1:d0::1090:2001 and 178.62.60.201

ns2.skok.cz points to 2001:1ab0:7e1e:2::5 and 217.31.48.201

ns.skok.cz points to 2a00:1e40:a:53::5 and 185.65.223.35

ns1.webglobe.cz points to 2a00:1e40:a:53::5 and 185.65.223.35

ns2.webglobe.cz points to 2001:1ab0:7e1e:2::5 and 217.31.48.201

ns3.skokcz.eu points to 2a03:b0c0:1:d0::1090:2001 and 178.62.60.201

Host names that point to 2a03:b0c0:1:d0::1090:2001: ns3.webglobe.com and ns3.skokcz.eu

Host names that point to 178.62.60.201: ns3.webglobe.com and ns3.skokcz.eu

Host names that point to 2001:1ab0:7e1e:2::5: ns2.skok.cz and ns2.webglobe.cz

Host names that point to 217.31.48.201: ns2.skok.cz and ns2.webglobe.cz

Host names that point to 2a00:1e40:a:53::5: ns.skok.cz and ns1.webglobe.cz

Host names that point to 185.65.223.35: ns.skok.cz and ns1.webglobe.cz

Mail Servers

Two mail servers handle studentsprague.com: mx.skok.cz and mxbackup.skok.cz.

studentsprague.com shares the same mail server setup as other domains, for instance ordinacehk.cz, lege.cz, e-manag.cz, npa.cz and safetylearning.cz.

studentsprague.com shares some mail servers with other domains, at least partially, for example frosttechnika.cz and fcnovybor.cz.

Host names with a single IP:

mx.skok.cz points to 62.109.128.119.

mxbackup.skok.cz points to 62.109.128.119.

Host names pointing to 62.109.128.119: mx.skok.cz and mxbackup.skok.cz.

studentsprague.com - robtex.com