`ask4web.cz`

DNSSEC	⚠️ Not signed
A	2001:1ab0:7e1e:151:62:109:154:16^{🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
		PTR	`dw218.webglobe.com`
A	62.109.154.16^{🇨🇿 IGNUM-AS62.109.128.0/19 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/}
NS	`ns1.savana.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	`ns1.webglobe.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.savana.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	`ns2.webglobe.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	`ns3.savana.cz` ⚠️ 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`
NS	`ns3.webglobe.com` ⚠️ 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`
MX	`mx1.savana.cz` ⭐
		A	130.193.14.154^{🇨🇿 IGNUM-AS130.193.8.0/21 Webglobe s.r.o. H90}
			PTR	`email.webglobe.cz`
MX	`mx2.savana.cz`⁽²⁰⁾
		A	185.102.21.80^{🇨🇿 ONE-NETWORK185.102.21.0/24}
			PTR	`email3.webglobe.cz`
TXT	`MS=13CC8A288F5BDA4CB82CA60C75FE1DD97B85C98A`
TXT	`v=spf1 include:_spf.webglobe.com mx ip4:217.16.187.41/24 ip4:217.16.187.42/24...`
SOA	`ns1.savana.cz`hostmaster@savana.cz 2025-03-06 #1

`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=1771291036

Same first word

ask4web.cz

ask4web.co.il

ask4web.de

DNS History

16 records (10 active, 6 former)

○NSns.ask4web.cz2015-05-28 → 2016-03-15 · 4 obs

● 2015-05-28 18:20:22
● 2016-03-15 22:34:44
○ 2017-03-23 21:19:10
○ 2026-03-18 19:59:44

●NSns1.savana.cz2017-03-23 → 2026-03-18 · 3 obs

○ 2016-03-15 22:34:44
● 2017-03-23 21:19:10
● 2026-03-18 19:59:44

●NSns1.webglobe.cz2026-02-16 → 2026-03-18 · 3 obs

○ 2017-03-23 21:19:10
● 2026-02-16 21:27:52
● 2026-03-18 19:59:44

○NSns2.ahosting.cz2015-05-28 → 2016-03-15 · 5 obs

● 2015-05-28 18:20:22
○ 2015-10-15 15:43:34
● 2016-03-15 22:34:44
○ 2017-03-23 21:19:10
○ 2026-03-18 19:59:44

●NSns2.savana.cz2017-03-23 → 2026-03-18 · 3 obs

○ 2016-03-15 22:34:44
● 2017-03-23 21:19:10
● 2026-03-18 19:59:44

●NSns2.webglobe.cz2026-02-16 → 2026-03-18 · 3 obs

○ 2017-03-23 21:19:10
● 2026-02-16 21:27:52
● 2026-03-18 19:59:44

●NSns3.savana.cz2017-03-23 → 2026-03-18 · 3 obs

○ 2016-03-15 22:34:44
● 2017-03-23 21:19:10
● 2026-03-18 19:59:44

●NSns3.webglobe.com2026-02-16 → 2026-03-18 · 3 obs

○ 2017-03-23 21:19:10
● 2026-02-16 21:27:52
● 2026-03-18 19:59:44

○MXmail.ask4web.cz2015-05-28 → 2016-03-15 · 4 obs

● 2015-05-28 18:20:22
● 2016-03-15 22:34:44
○ 2017-03-23 21:19:10
○ 2026-03-18 19:59:44

●MXmx1.savana.cz2017-03-23 → 2026-03-18 · 3 obs

○ 2016-03-15 22:34:44
● 2017-03-23 21:19:10
● 2026-03-18 19:59:44

●MXmx2.savana.cz2017-03-23 → 2026-03-18 · 3 obs

○ 2016-03-15 22:34:44
● 2017-03-23 21:19:10
● 2026-03-18 19:59:44

●A2001:1ab0:7e1e:151:62:109:154:162026-02-16 → 2026-03-18 · 3 obs

○ 2017-03-23 21:19:10
● 2026-02-16 21:27:52
● 2026-03-18 19:59:44

○A217.16.187.332017-03-23 → 2017-03-23 · 4 obs

○ 2016-03-15 22:34:44
● 2017-03-23 21:19:10
○ 2026-02-16 21:27:52
○ 2026-03-18 19:59:44

○A2a00:1ed0:1:1800:7:4d:2600:12017-03-23 → 2017-03-23 · 4 obs

○ 2016-03-15 22:34:44
● 2017-03-23 21:19:10
○ 2026-02-16 21:27:52
○ 2026-03-18 19:59:44

●A62.109.154.162026-02-16 → 2026-03-18 · 3 obs

○ 2017-03-23 21:19:10
● 2026-02-16 21:27:52
● 2026-03-18 19:59:44

○A78.24.10.1902015-05-28 → 2016-03-15 · 4 obs

● 2015-05-28 18:20:22
● 2016-03-15 22:34:44
○ 2017-03-23 21:19:10
○ 2026-03-18 19:59:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz	-
ask4web.cz	ns1.webglobe.cz, ns2.webglobe.cz, ns3.webglobe.com	4 records

✅ Authoritative Response

Server: 185.65.223.35

NS records: ns1.webglobe.cz, ns2.webglobe.cz, ns3.webglobe.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for ask4web.cz (unsigned zone)

⏱️ Timing

Total: 1596ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`62.109.154.16`
AAAA	1	`2001:1ab0:7e1e:151:62:109:154:16`
NS	3	`ns2.savana.cz, ns3.savana.cz...`
MX	2	`mx1.savana.cz (pri: 10), mx2.savana.cz (pri: 20)`
TXT	2	`MS=13CC8A288F5BDA4CB82CA60C75FE1DD97B85C, v=spf1 include:_spf.webglobe.com mx ip4:`
SOA	1	`ns1.savana.cz hostmaster.savana.cz`

📌 Glue Records Collected

Total: 4

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

Analysis

IP Addresses

ask4web.cz has two IP numbers: 2001:1ab0:7e1e:151:62:109:154:16 and 62.109.154.16.

Other host names, for instance internet.ileonard.cz, bazeni.cz, blistex.cz, ileonard.cz and karina.cz share IP numbers with ask4web.cz.

Name Servers

ask4web.cz is delegated to six name servers: ns3.webglobe.com, ns1.savana.cz, ns2.savana.cz, ns3.savana.cz, ns1.webglobe.cz and ns2.webglobe.cz.

ask4web.cz at least partially shares name servers with other domains, including mistraltea.sk, shopsys.sk, bldepsilon.cz, strechy-krytiny.sk and azpropress.cz.

These name servers are commonly used with ns2.skok.cz, ns.skok.cz, ns3.skokcz.eu, ns.ebola.cz, ns1.ebola.cz, ns2.ebola.cz, ns1.webglobe.sk and ns2.webglobe.sk.

Host names with two IP numbers:

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

The host name ns1.savana.cz points to 2a00:1e40:a:53::5 and 185.65.223.35.

The host name ns2.savana.cz points to 2001:1ab0:7e1e:2::5 and 217.31.48.201.

The host name ns3.savana.cz points to 2a03:b0c0:1:d0::1090:2001 and 178.62.60.201.

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

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

Names pointing to 2a03:b0c0:1:d0::1090:2001: ns3.webglobe.com and ns3.savana.cz.

Names pointing to 178.62.60.201: ns3.webglobe.com and ns3.savana.cz.

Names pointing to 2a00:1e40:a:53::5: ns1.savana.cz and ns1.webglobe.cz.

Names pointing to 185.65.223.35: ns1.savana.cz and ns1.webglobe.cz.

Names pointing to 2001:1ab0:7e1e:2::5: ns2.savana.cz and ns2.webglobe.cz.

Names pointing to 217.31.48.201: ns2.savana.cz and ns2.webglobe.cz.

Mail Servers

ask4web.cz is served by two mail servers mx1.savana.cz and mx2.savana.cz.

ask4web.cz shares the same mail server setup as other domains, for instance lexperanto.com, svetbezvalek.cz, strechybrno.eu, eurowaste.cz and madis.cz.

ask4web.cz shares some mail servers with other domains, at least in part; for example authentika.cz and fibit.cz.

Host names with a single IP address: mx1.savana.cz points to 130.193.14.154; mx2.savana.cz points to 185.102.21.80.

ask4web.cz - robtex.com

ask4web.cz

cz

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`ask4web.cz`

`cz`