libinst.cz - robtex.com
libinst.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 | ||||||
rank #3123 in the tld
WOT: SAFE (75/100)
PTR for
Up
www.libinst.cz |
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSns.cybersales.cz2015-07-16 → 2016-04-03 · 4 obs
● 2016-04-03 14:11:14
○ 2017-03-30 18:22:42
○ 2026-02-26 23:21:52
●NSns1.ignum.com2017-03-30 → 2026-02-26 · 3 obs
● 2017-03-30 18:22:42
● 2026-02-26 23:21:52
●NSns2.ignum.cz2017-03-30 → 2026-02-26 · 3 obs
● 2017-03-30 18:22:42
● 2026-02-26 23:21:52
○NSsns.cybersales.cz2015-07-16 → 2016-04-03 · 4 obs
● 2016-04-03 14:11:14
○ 2017-03-30 18:22:42
○ 2026-02-26 23:21:52
●MXlibinst-cz.mail.protection.outlook.com2015-07-16 → 2026-02-26 · 2 obs
● 2026-02-26 23:21:52
●A185.129.138.2212026-02-26 → 2026-02-26 · 2 obs
● 2026-02-26 23:21:52
○A2a02:2b88:2:1::679:12015-07-16 → 2016-04-03 · 4 obs
● 2016-04-03 14:11:14
○ 2017-03-30 18:22:42
○ 2026-02-26 23:21:52
○A31.31.73.1682015-07-16 → 2016-04-03 · 4 obs
● 2016-04-03 14:11:14
○ 2017-03-30 18:22:42
○ 2026-02-26 23:21:52
○A46.28.106.592017-03-30 → 2017-03-30 · 3 obs
● 2017-03-30 18:22:42
○ 2026-02-26 23:21:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, a.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz | 8 records |
| libinst.cz | ns1.ignum.com, ns2.ignum.cz | 2 records |
✅ Authoritative Response
Server: 217.31.48.201
NS records: ns1.ignum.com, ns2.ignum.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1087ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.129.138.221 |
| NS | 2 | ns1.ignum.com, ns2.ignum.cz |
| MX | 1 | libinst-cz.mail.protection.outlook.com ( |
| TXT | 4 | actalis-dcv=804i5n6l5euiv4fqmu435q6mva, beba89d2c9a7174d66116154b5d1cbd49fcb8b2f... |
| SOA | 1 | ns1.ignum.com hostmaster.ignum.cz |
📌 Glue Records Collected
Total: 10
In-bailiwick: 8 (d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz...)
Out-of-bailiwick: 2 (ns2.ignum.cz, ns2.ignum.cz)
AI analysis
The parent of www.libinst.cz is libinst.cz.
libinst.cz points to a single IP: 185.129.138.221.
Other host names, for instance szframe.sk, skolahranice.eu, svycarskydum.cz, 221.138.forpsi.net and jinasit.cz share IP numbers with libinst.cz.
Two name servers ns1.ignum.com and ns2.ignum.cz handle delegation for libinst.cz.
libinst.cz uses the same name server setup as other domains, for example diagnostika.cz, sabata.biz, astonlambert.sk, europarc.cz and dant.sk.
libinst.cz partially shares name servers with other domains; examples include zajezdy-dominikanska-republika.cz, bps-bikes.cz, kaumy.com, zeelandia.cz and robert-zauer.cz.
These name servers are commonly used with ns1.ignum.eu, ns2.ignum.eu and ns3.ignum.eu.
Host names with two IP numbers:
ns1.ignum.com points to: 2a00:1e40:a:53::5 and 185.65.223.35
ns2.ignum.cz points to: 2001:1ab0:7e1e:2::5 and 217.31.48.201
libinst.cz is handled by a single mail server, libinst-cz.mail.protection.outlook.com.
Hostname libinst-cz.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::f, 2a01:111:f403:ca09::3, 2a01:111:f403:ca09::4, 2a01:111:f403:ca09::6, 52.101.68.21, 52.101.68.32, 52.101.73.4 and 52.101.73.153.