is4security.cz - robtex.com
is4security.cz
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.czhostmaster@nic.cz serial=1774775835 | ||||||
Same first word
is4security.com |
is4security.cz |
Similar names
DNS History
11 records (5 active, 6 former)
●NSns.forpsi.net2015-07-03 → 2026-03-29 · 2 obs
● 2026-03-29 09:46:08
●MXis4security-cz.mail.protection.outlook.com2020-01-14 → 2026-03-29 · 3 obs
● 2020-01-14 10:47:24
● 2026-03-29 09:46:08
○MXmail.is4tech.cz2017-03-18 → 2017-03-18 · 3 obs
○ 2020-01-14 10:47:24
○ 2026-03-29 09:46:08
○MXmail2.is4security.cz2017-03-18 → 2017-03-18 · 3 obs
○ 2020-01-14 10:47:24
○ 2026-03-29 09:46:08
○MXmail3.is4security.cz2017-03-18 → 2017-03-18 · 3 obs
○ 2020-01-14 10:47:24
○ 2026-03-29 09:46:08
○A159.69.131.2402020-01-14 → 2020-01-14 · 3 obs
● 2020-01-14 10:47:24
○ 2026-03-29 09:46:08
●A23.236.62.1472026-03-29 → 2026-03-29 · 2 obs
● 2026-03-29 09:46:08
○A85.214.84.542017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 05:45:10
○ 2020-01-14 10:47:24
○ 2026-03-29 09:46:08
○A85.214.86.72015-07-03 → 2016-06-26 · 4 obs
● 2016-06-26 01:53:36
○ 2017-03-18 05:45:10
○ 2026-03-29 09:46:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| is4security.cz | ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net | 2 records |
✅ Authoritative Response
Server:81.2.194.130
NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1538ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 23.236.62.147 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| MX | 1 | is4security-cz.mail.protection.outlook.c |
| TXT | 3 | MS=ms39043860, v=spf1 include:spf.protection.outlook.co... |
| SOA | 1 | ns.forpsi.net admin.forpsi.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
IP Addresses
is4security.cz points to a single IP number: 23.236.62.147.
other host names for instance dfi-gc.com, gonzalolauda.com, tampabaywaterkeeper.org, cassidyschiller.com and floodprice.com share IP numbers with is4security.cz.
Name Servers
is4security.cz is delegated to three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
is4security.cz at least partially shares name servers with other domains, for instance presbeton.cz, flap.cz, czimmo.cz, telefonkonyv.eu and zlinstav.com.
These name servers are commonly used with the name servers ns.forpsi.us.
Host names with two IP numbers:
Host ns.forpsi.cz points to 2001:15e8:201:1::d1b9 and 81.2.209.185.
Host ns.forpsi.it points to 2a00:6d41:2:1::5 and 95.110.254.165.
Host ns.forpsi.net points to 2001:15e8:101:1::c282 and 81.2.194.130.
Mail Servers
is4security.cz is handled by a single mail server, is4security-cz.mail.protection.outlook.com.
Host name is4security-cz.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::4, 2a01:111:f403:ca04::c, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::6, 52.101.68.16, 52.101.73.11, 52.101.73.19 and 52.101.73.24.