security-session.cz - robtex.com
security-session.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=1771291036 | ||||||
Subdomains
mailin1.security-session.cz |
Same first word
security-session.cz |
DNS History
11 records (7 active, 4 former)
●NSns1.websupport.sk2015-07-25 → 2026-03-23 · 2 obs
● 2026-03-23 06:57:02
●NSns2.websupport.sk2015-07-25 → 2026-03-23 · 2 obs
● 2026-03-23 06:57:02
●NSns3.websupport.sk2015-07-25 → 2026-03-23 · 2 obs
● 2026-03-23 06:57:02
○MXmailin1.security-session.cz2015-07-25 → 2020-03-13 · 3 obs
● 2020-03-13 09:47:56
○ 2026-03-23 06:57:02
○MXmailin2.security-session.cz2015-07-25 → 2020-03-13 · 3 obs
● 2020-03-13 09:47:56
○ 2026-03-23 06:57:02
○MXmailinbackup1.security-session.cz2015-07-25 → 2016-03-12 · 4 obs
● 2016-03-12 16:21:52
○ 2016-07-01 19:06:20
○ 2026-03-23 06:57:02
●MXmx10.websupport.cz2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 06:57:02
●MXmx20.websupport.cz2026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 06:57:02
●A2a00:4b40:aaaa:2005::62026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 06:57:02
●A37.9.175.1652026-03-23 → 2026-03-23 · 2 obs
● 2026-03-23 06:57:02
○A37.9.175.262015-07-25 → 2020-03-13 · 3 obs
● 2020-03-13 09:47:56
○ 2026-03-23 06:57:02
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| security-session.cz | ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk | - |
✅ Authoritative Response
Server:45.10.97.13
NS records: ns1.websupport.sk, ns2.websupport.sk, ns3.websupport.sk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 919ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.165 |
| AAAA | 1 | 2a00:4b40:aaaa:2005::6 |
| NS | 3 | ns1.websupport.sk, ns2.websupport.sk... |
| MX | 2 | mx10.websupport.cz (pri: 10), mx20.websupport.cz (pri: 100) |
| TXT | 2 | v=spf1 a mx include:_spf.m1.websupport.s, spf2.0/pra a mx include:_sid.m1.websuppo |
| SOA | 1 | ns1.websupport.sk admin.websupport.sk |
Analysis
Hierarchy
security-session.cz is a parent of mailin1.security-session.cz.
IP Addresses
security-session.cz points to two IP numbers: 2a00:4b40:aaaa:2005::6 and 37.9.175.165.
Other host names, for instance 012.cz, intasky.cz, advautomotive.nl, blankacechova.com and automodels.de share IP numbers with security-session.cz.
Name Servers
The delegation for security-session.cz is handled by three name servers: ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
security-session.cz at least partially shares name servers with other domains, for instance maska.sk, cutn.sk, potasch.com, appsense.sk and sarai.eu.
These name servers are commonly used with ns1.slovanet.net and ns.slovanet.net.
Two IP numbers per host:
ns1.websupport.sk points to 2a10:bbc0::11 and 45.10.97.11.
ns2.websupport.sk points to 2a02:250:3::12 and 185.71.159.12.
ns3.websupport.sk points to 2a10:bbc0::13 and 45.10.97.13.
Mail Servers
security-session.cz is handled by two mail servers: mx10.websupport.cz and mx20.websupport.cz.
security-session.cz uses the same mail server configuration as other domains, such as bmtypo.cz, daen.cz, 4pm.cz, sge.cz and refri.cz.
security-session.cz shares at least partially some mail servers with other domains, for example metrum.cz, mach-tesneni.cz and decksafe.cz.
Host names with two IP numbers: mx10.websupport.cz points to 2a00:4b40:aaaa:2101:45:13:137:103 and 45.13.137.103; mx20.websupport.cz points to 2a00:4b40:aaaa:2101:45:13:137:104 and 45.13.137.104.