sida.cz - robtex.com
sida.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 104.154.100.138🇺🇸 Google104.154.96.0/20 | ||||||
| PTR | 138.100.154.104.bc.googleusercontent.com | ||||||
| NS | ns.forpsi.net ⭐ | ||||||
| A | 2001:15e8:101:1::c282🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.net | ||||||
| A | 81.2.194.130🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | ns.forpsi.net | ||||||
| NS | ns.forpsi.cz | ||||||
| A | 2001:15e8:201:1::d1b9🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.cz | ||||||
| A | 81.2.209.185🇨🇿 INTERNET-CZ81.2.209.0/24 | ||||||
| PTR | ns.forpsi.cz | ||||||
| NS | ns.forpsi.it | ||||||
| A | 2a00:6d41:2:1::5🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network | ||||||
| PTR | ns.forpsi.it | ||||||
| A | 95.110.254.165🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network | ||||||
| PTR | host165-254-110-95.serverdedicati.aruba.it | ||||||
| MX | mxavas.forpsi.com ⭐ | ||||||
| A | 81.2.195.200🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | mxavas.forpsi.com | ||||||
| SOA | ns.forpsi.netadmin@forpsi.net 2026-06-07 #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.czhostmaster@nic.cz serial=1781606854 | ||||||
Same first word
Similar names
DNS History
8 records (5 active, 3 former)
●NSns.forpsi.net2015-08-15 → 2026-06-16 · 2 obs
● 2026-06-16 11:53:50
●MXmxavas.forpsi.com2015-08-15 → 2026-06-16 · 2 obs
● 2026-06-16 11:53:50
●A104.154.100.1382026-06-08 → 2026-06-16 · 3 obs
● 2026-06-08 02:40:18
● 2026-06-16 11:53:50
○A137.117.227.612020-11-04 → 2020-11-27 · 5 obs
● 2020-11-04 03:22:58
● 2020-11-27 03:13:44
○ 2026-06-08 02:40:18
○ 2026-06-16 11:53:50
○A81.2.195.1712015-08-15 → 2015-08-15 · 3 obs
○ 2015-11-04 04:39:44
○ 2026-06-16 11:53:50
○A81.2.195.682015-11-04 → 2016-12-30 · 5 obs
● 2015-11-04 04:39:44
● 2016-12-30 07:46:56
○ 2020-11-04 03:22:58
○ 2026-06-16 11:53:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz | - |
| sida.cz | ns.forpsi.net, ns.forpsi.cz, ns.forpsi.it | 2 records |
✅ Authoritative Response
Server:81.2.194.130
NS records: ns.forpsi.net, ns.forpsi.cz, ns.forpsi.it
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1438ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 104.154.100.138 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| MX | 1 | mxavas.forpsi.com (pri: 10) |
| SOA | 1 | ns.forpsi.net admin.forpsi.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
IP Addresses
sida.cz resolves to just one IP address, 104.154.100.138.
Two other host names, along with bucherock.com, helenhackworth.com and h-pproducts.com, also share IP numbers with sida.cz.
Name Servers
sida.cz is served by three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
sida.cz partially shares its NS delegation with several other domains, including jfccomputers.cz, lobb.cz, grafema.cz and two others.
These name servers often co-occur with the name servers ns.forpsi.us.
The hostnames ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net each direct to two IP addresses — ns.forpsi.cz to 81.2.209.185 and 2001:15e8:201:1::d1b9, ns.forpsi.it to 95.110.254.165 and 2a00:6d41:2:1::5, and ns.forpsi.net to 81.2.194.130 and 2001:15e8:101:1::c282.
Mail Servers
The sole mail server for sida.cz is mxavas.forpsi.com.
Among the domains sharing a mail server setup with sida.cz are educome.sk, ochranamotoru.cz, lhmc.hu and two others.
sida.cz partially shares its mail servers with other domains, matousek.cz and factorial.eu being examples.
mxavas.forpsi.com resolves to 81.2.195.200 and no other IP number.