ct100.cz - robtex.com
ct100.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 185.85.164.59🇨🇿 MASTER-AS185.85.164.0/22 CZ-SN-20150127 | ||||||
| PTR | 185-85-164-59.static.masterinter.net | ||||||
| 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 | ||||||
| SOA | ns.forpsi.netadmin@forpsi.com 2026-08-03 #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=1786625245 | ||||||
Previously NS for
ct100.cz |
Subdomains
Same first word
Similar names
tc100.org.cn |
tc100.com |
t100c.com |
tc100.de |
c100t.com |
ct010.com |
100ct.by |
100tc.cn |
100ct.com |
001tc.com |
100tc.com |
tc001.com |
DNS History
10 records (4 active, 6 former)
○NSct100.cz2015-05-18 → 2016-09-12 · 4 obs
● 2016-09-12 11:15:04
○ 2017-01-02 07:56:18
○ 2026-08-13 13:17:42
●NSns.forpsi.cz2026-06-14 → 2026-08-13 · 3 obs
● 2026-06-14 20:59:40
● 2026-08-13 13:17:42
●NSns.forpsi.it2026-06-14 → 2026-08-13 · 3 obs
● 2026-06-14 20:59:40
● 2026-08-13 13:17:42
●NSns.forpsi.net2026-06-14 → 2026-08-13 · 3 obs
● 2026-06-14 20:59:40
● 2026-08-13 13:17:42
○NSns.grdns.cz2017-01-02 → 2018-01-18 · 5 obs
● 2017-01-02 07:56:18
● 2018-01-18 07:14:46
○ 2026-06-14 20:59:40
○ 2026-08-13 13:17:42
○NSns.grdns.it2017-01-02 → 2018-01-18 · 5 obs
● 2017-01-02 07:56:18
● 2018-01-18 07:14:46
○ 2026-06-14 20:59:40
○ 2026-08-13 13:17:42
○NSns.omnet.cz2015-05-18 → 2016-09-12 · 4 obs
● 2016-09-12 11:15:04
○ 2017-01-02 07:56:18
○ 2026-08-13 13:17:42
○NSns3.omnet.cz2015-05-18 → 2016-09-12 · 4 obs
● 2016-09-12 11:15:04
○ 2017-01-02 07:56:18
○ 2026-08-13 13:17:42
●A185.85.164.592017-01-02 → 2026-08-13 · 6 obs
● 2017-01-02 07:56:18
● 2026-06-14 20:59:40
○ 2026-07-24 15:30:26
● 2026-08-13 09:07:56
● 2026-08-13 13:17:42
○A88.208.121.322015-05-18 → 2016-09-12 · 4 obs
● 2016-09-12 11:15:04
○ 2017-01-02 07:56:18
○ 2026-08-13 13:17:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz | - |
| ct100.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: 1016ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.85.164.59 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| SOA | 1 | ns.forpsi.net admin.forpsi.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
Hierarchy
The parent domain of www.ct100.cz and mail.ct100.cz is ct100.cz.
IP Addresses
ct100.cz directs to one IP number, which is 185.85.164.59.
Other host names share IP numbers with ct100.cz; 185-85-164-59.static.masterinter.net is one such example.
Name Servers
Three name servers are authoritative for ct100.cz: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
ct100.cz shares at least some of its name servers with other domains, including xtra.hu, obec-lazany.cz, kegisz.hu and two others.
These name servers are frequently seen alongside the name servers ns.forpsi.us.
ns.forpsi.cz resolves to 81.2.209.185 and 2001:15e8:201:1::d1b9. ns.forpsi.it resolves to 95.110.254.165 and 2a00:6d41:2:1::5. ns.forpsi.net resolves to 81.2.194.130 and 2001:15e8:101:1::c282. All three hostnames point to two IP numbers each.