mdvl.cz - robtex.com
mdvl.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.0.206.51🇨🇿 CASABLANCA-AS81.0.206.0/23 Casablanca INT | ||||||
| PTR | u15.onlinehosting.cz | ||||||
| NS | ns1.onlinehosting.cz ⭐ | ||||||
| A | 217.11.236.113🇨🇿 CASABLANCA-AS217.11.236.0/24 Casablanca INT | ||||||
| PTR | u10.onlinehosting.cz | ||||||
| NS | ns2.onlinehosting.cz | ||||||
| A | 91.103.160.232🇨🇿 KAORA91.103.160.0/21 Kaora, s.r.o. | ||||||
| PTR | ns2.sunfox.cz | ||||||
| NS | ns3.onlinehosting.cz | ||||||
| A | 81.0.206.54🇨🇿 CASABLANCA-AS81.0.206.0/23 Casablanca INT | ||||||
| PTR | u15virt54.onlinehosting.cz | ||||||
| MX | smtp.onlinehosting.cz ⭐ | ||||||
| A | 81.0.239.120🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT | ||||||
| PTR | u12.onlinehosting.cz | ||||||
| TXT | v=spf1 a include:_spf.onlinehosting.cz -all | ||||||
| SOA | ns1.onlinehosting.cztech@internetpartner.cz serial=8 | ||||||
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=1776001636 | ||||||
Same first word
Similar names
DNS History
5 records (5 active, 0 former)
●NSns1.onlinehosting.cz2015-08-27 → 2026-04-12 · 2 obs
● 2026-04-12 14:44:08
●NSns2.onlinehosting.cz2015-08-27 → 2026-04-12 · 2 obs
● 2026-04-12 14:44:08
●NSns3.onlinehosting.cz2015-08-27 → 2026-04-12 · 2 obs
● 2026-04-12 14:44:08
●MXsmtp.onlinehosting.cz2015-08-27 → 2026-04-12 · 2 obs
● 2026-04-12 14:44:08
●A81.0.206.512015-08-27 → 2026-04-12 · 2 obs
● 2026-04-12 14:44:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| mdvl.cz | ns1.onlinehosting.cz, ns2.onlinehosting.cz, ns3.onlinehosting.cz | - |
✅ Authoritative Response
Server:81.0.206.54
NS records: ns1.onlinehosting.cz, ns2.onlinehosting.cz, ns3.onlinehosting.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for mdvl.cz (unsigned zone)
⏱️ Timing
Total: 1400ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.0.206.51 |
| NS | 3 | ns1.onlinehosting.cz, ns2.onlinehosting.cz... |
| MX | 1 | smtp.onlinehosting.cz (pri: 10) |
| TXT | 1 | v=spf1 a include:_spf.onlinehosting.cz - |
| SOA | 1 | ns1.onlinehosting.cz tech.internetpartne |
Analysis
IP Addresses
mdvl.cz resolves to a single IP address: 81.0.206.51.
Other host names including gsbrno.cz, u15.onlinehosting.cz, (0x666170)o.cz, svbf.cz and pcl.cz share IP numbers with mdvl.cz.
Name Servers
mdvl.cz is delegated to three name servers: ns1.onlinehosting.cz, ns2.onlinehosting.cz and ns3.onlinehosting.cz.
mdvl.cz at least partially shares name servers with other domains, including skinzone.pl, (0x706f726e)ozpravy.cz, mojebrisko.cz, itcm.eu and lak-design.cz.
These name servers are commonly used with ns1.ceskymultihosting.cz, ns2.ceskymultihosting.cz, ns3.ceskymultihosting.cz, ns1.czechmultihosting.com, ns2.czechmultihosting.com, ns3.czechmultihosting.com, ns1.octgate.com and ns2.octgate.com.
Hostnames with a single IP:
ns1.onlinehosting.cz points to: 217.11.236.113.
ns2.onlinehosting.cz points to: 91.103.160.232.
ns3.onlinehosting.cz points to: 81.0.206.54.
Mail Servers
mdvl.cz is handled by a single mail server, smtp.onlinehosting.cz.
mdvl.cz shares its mail server setup with other domains, including voreti.cz, karmadesign.cz, goofy.cz, ehub.de and discus-olomouc.cz.
mdvl.cz shares some mail servers with other domains, at least partially, for instance onlysoft.cz.
smtp.onlinehosting.cz points to a single IP: 81.0.239.120.