chemstr.cz - robtex.com
chemstr.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=1778336236 | ||||||
Subdomains
mail.chemstr.cz |
noproxy_609be20adac30.chemstr.cz |
Same first word
chemstr.cz |
Similar names
DNS History
16 records (5 active, 11 former)
●NSns.forpsi.cz2026-04-10 → 2026-05-09 · 3 obs
● 2026-04-10 21:01:50
● 2026-05-09 14:43:04
●NSns.forpsi.it2026-04-10 → 2026-05-09 · 3 obs
● 2026-04-10 21:01:50
● 2026-05-09 14:43:04
●NSns.forpsi.net2026-04-10 → 2026-05-09 · 3 obs
● 2026-04-10 21:01:50
● 2026-05-09 14:43:04
○NSns1.netio.cz2015-06-27 → 2016-04-27 · 4 obs
● 2016-04-27 00:22:30
○ 2016-12-31 01:38:06
○ 2026-05-09 14:43:04
○NSns1.svetvps.cz2016-12-31 → 2018-05-26 · 5 obs
● 2016-12-31 01:38:06
● 2018-05-26 10:35:40
○ 2026-04-10 21:01:50
○ 2026-05-09 14:43:04
○NSns2.netio.cz2015-06-27 → 2016-04-27 · 4 obs
● 2016-04-27 00:22:30
○ 2016-12-31 01:38:06
○ 2026-05-09 14:43:04
○NSns2.svetvps.cz2016-12-31 → 2018-05-26 · 5 obs
● 2016-12-31 01:38:06
● 2018-05-26 10:35:40
○ 2026-04-10 21:01:50
○ 2026-05-09 14:43:04
○NSns3.netio.cz2015-06-27 → 2016-04-27 · 4 obs
● 2016-04-27 00:22:30
○ 2016-12-31 01:38:06
○ 2026-05-09 14:43:04
●MXchemstr-cz.mail.protection.outlook.com2026-04-10 → 2026-05-09 · 3 obs
● 2026-04-10 21:01:50
● 2026-05-09 14:43:04
○MXmail.chemstr.cz2015-06-27 → 2016-04-27 · 4 obs
● 2016-04-27 00:22:30
○ 2016-12-31 01:38:06
○ 2026-05-09 14:43:04
○MXmail.pro-idea.cz2016-12-31 → 2018-05-26 · 5 obs
● 2016-12-31 01:38:06
● 2018-05-26 10:35:40
○ 2026-04-10 21:01:50
○ 2026-05-09 14:43:04
●A185.129.138.402026-04-10 → 2026-05-09 · 3 obs
● 2026-04-10 21:01:50
● 2026-05-09 14:43:04
○A185.25.184.2452015-06-27 → 2016-01-30 · 4 obs
● 2016-01-30 07:01:56
○ 2016-04-27 00:22:30
○ 2026-05-09 14:43:04
○A185.25.185.362016-04-27 → 2016-04-27 · 4 obs
● 2016-04-27 00:22:30
○ 2016-12-31 01:38:06
○ 2026-05-09 14:43:04
○A83.167.244.1492018-05-26 → 2018-05-26 · 4 obs
● 2018-05-26 10:35:40
○ 2026-04-10 21:01:50
○ 2026-05-09 14:43:04
○A89.221.209.2482016-12-31 → 2016-12-31 · 4 obs
● 2016-12-31 01:38:06
○ 2018-05-26 10:35:40
○ 2026-05-09 14:43:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| chemstr.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
⚠️ Insecure (no DNSSEC)
No DS record for chemstr.cz (unsigned zone)
⏱️ Timing
Total: 1455ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.129.138.40 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| MX | 1 | chemstr-cz.mail.protection.outlook.com ( |
| TXT | 4 | MS=ms76747597, google-site-verification=Km1zw35iQsas9hd... |
| 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
chemstr.cz is a parent of mail.chemstr.cz and noproxy_609be20adac30.chemstr.cz.
IP Addresses
chemstr.cz points to a single IP address: 185.129.138.40.
Other host names such as becomewizard.com, herolticka.cz, ylia.cz, enkom.cz and noproxy_658aed5ec5286.stavtranskladno.cz share IP numbers with chemstr.cz.
Name Servers
chemstr.cz is delegated to three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
At least part of the name servers for chemstr.cz are shared with other domains, for instance nakupni-inspirace.cz, hotel28.cz, pamatniknarodnihopisemnictvi.cz, vynab.eu and aktenis.cz.
These name servers are commonly used alongside the name servers ns.forpsi.us.
Host names with two IP numbers:
ns.forpsi.cz points to 2001:15e8:201:1::d1b9 and 81.2.209.185
ns.forpsi.it points to 2a00:6d41:2:1::5 and 95.110.254.165
ns.forpsi.net points to 2001:15e8:101:1::c282 and 81.2.194.130
Mail Servers
The mail server for chemstr.cz is chemstr-cz.mail.protection.outlook.com.
chemstr-cz.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::4, 2a01:111:f403:ca09::6, 2a01:111:f403:ca09::b, 2a01:111:f403:ca09::e, 52.101.68.18, 52.101.68.25, 52.101.73.8 and 52.101.73.11.