sis-systemy.com - robtex.com
sis-systemy.com
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.netnstld@verisign-grs.com serial=1774848982 | ||||||
Same first word
sis-systemy.com |
DNS History
12 records (6 active, 6 former)
○NS1.ns.gigaserver.cz2016-12-16 → 2017-09-23 · 3 obs
● 2017-09-23 00:44:50
○ 2026-03-30 05:44:14
○NS2.ns.gigaserver.cz2016-12-16 → 2017-09-23 · 3 obs
● 2017-09-23 00:44:50
○ 2026-03-30 05:44:14
○NS3.ns.gigaserver.cz2016-12-16 → 2017-09-23 · 3 obs
● 2017-09-23 00:44:50
○ 2026-03-30 05:44:14
○NS4.ns.gigaserver.cz2016-12-16 → 2017-09-23 · 3 obs
● 2017-09-23 00:44:50
○ 2026-03-30 05:44:14
●NSns1.websupport.cz2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:44:14
●NSns2.websupport.cz2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:44:14
●NSns3.websupport.eu2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:44:14
○MXmail.sis-systemy.com2016-12-16 → 2017-09-23 · 3 obs
● 2017-09-23 00:44:50
○ 2026-03-30 05:44:14
●MXsissystemy-com0i.mail.protection.outlook.com2026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:44:14
○A185.66.36.482016-12-16 → 2017-09-23 · 3 obs
● 2017-09-23 00:44:50
○ 2026-03-30 05:44:14
●A2a00:4b40:aaaa:2005::62026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:44:14
●A37.9.175.1642026-03-30 → 2026-03-30 · 2 obs
● 2026-03-30 05:44:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| sis-systemy.com | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.11
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 513ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.164 |
| AAAA | 1 | 2a00:4b40:aaaa:2005::6 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 1 | sissystemy-com0i.mail.protection.outlook |
| TXT | 2 | MS=ms75278493, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
sis-systemy.com points to two IP numbers: 2a00:4b40:aaaa:2005::6 and 37.9.175.164.
Other host names such as gkidigital.hu, www.nav.cz, click-stream.cz, nowproductions.cz and ns.callandsell.cz share IP numbers with sis-systemy.com.
Name Servers
sis-systemy.com is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
At least part of the name servers for sis-systemy.com are shared with other domains, for instance grony.net, pmm.cz, marinashumaieva.com, svp-solar.cz and poctivykamen.com.
Host names with two IP numbers:
ns1.websupport.cz points to 2a10:bbc0::11 and 45.10.97.11
ns2.websupport.cz points to 2a02:250:3::12 and 185.71.159.12
ns3.websupport.eu points to 2a10:bbc0::13 and 45.10.97.13
Mail Servers
The mail server for sis-systemy.com is sissystemy-com0i.mail.protection.outlook.com.
sissystemy-com0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::8, 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::3, 2a01:111:f403:ca09::d, 52.101.68.8, 52.101.68.15, 52.101.73.4 and 52.101.73.28.