dosycb.cz - robtex.com
dosycb.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 188.120.193.213🇨🇿 IP4ISP188.120.192.0/19 z.s.p.o. network route | ||||||
| PTR | emaya.kostax.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 | emaya.kostax.cz ⭐ | ||||||
| A | 2a02:c60:a120:18::3333🇨🇿 IP4ISP2a02:c60::/32 P4ISP z.s.p.o. network route | ||||||
| PTR | emaya.kostax.cz | ||||||
| A | 188.120.193.194🇨🇿 IP4ISP188.120.192.0/19 z.s.p.o. network route | ||||||
| PTR | emaya.kostax.cz | ||||||
| MX | maya.kostax.cz(30) | ||||||
| A | 188.120.193.4🇨🇿 IP4ISP188.120.192.0/19 z.s.p.o. network route | ||||||
| PTR | maya.kostax.cz | ||||||
| TXT | v=spf1 a mx ~all | ||||||
| SOA | ns1.onlinehosting.cztech@internetpartner.cz serial=25 | ||||||
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=1775956633 | ||||||
Subdomains
mail.dosycb.cz |
Same first word
dosycb.cz |
Similar names
DNS History
10 records (6 active, 4 former)
●NSns1.onlinehosting.cz2015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 01:52:56
●NSns2.onlinehosting.cz2015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 01:52:56
●NSns3.onlinehosting.cz2015-08-21 → 2026-04-12 · 2 obs
● 2026-04-12 01:52:56
●MXemaya.kostax.cz2026-02-22 → 2026-04-12 · 3 obs
● 2026-02-22 12:24:10
● 2026-04-12 01:52:56
○MXmail.dosycb.cz2015-08-21 → 2017-04-20 · 4 obs
● 2017-04-20 08:57:38
○ 2026-02-22 12:24:10
○ 2026-04-12 01:52:56
●MXmaya.kostax.cz2026-02-22 → 2026-04-12 · 3 obs
● 2026-02-22 12:24:10
● 2026-04-12 01:52:56
○MXvmaya.kostax.cz2015-08-21 → 2017-04-20 · 4 obs
● 2017-04-20 08:57:38
○ 2026-02-22 12:24:10
○ 2026-04-12 01:52:56
○A188.120.193.132015-08-21 → 2016-03-14 · 4 obs
● 2016-03-14 02:58:28
○ 2016-09-15 07:24:30
○ 2026-04-12 01:52:56
●A188.120.193.2132026-02-22 → 2026-04-12 · 3 obs
● 2026-02-22 12:24:10
● 2026-04-12 01:52:56
○A90.178.205.752016-09-15 → 2017-04-20 · 5 obs
● 2016-09-15 07:24:30
● 2017-04-20 08:57:38
○ 2026-02-22 12:24:10
○ 2026-04-12 01:52:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| dosycb.cz | ns3.onlinehosting.cz, ns2.onlinehosting.cz, ns1.onlinehosting.cz | - |
✅ Authoritative Response
Server:81.0.206.54
NS records: ns3.onlinehosting.cz, ns2.onlinehosting.cz, ns1.onlinehosting.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dosycb.cz (unsigned zone)
⏱️ Timing
Total: 1272ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 188.120.193.213 |
| NS | 3 | ns2.onlinehosting.cz, ns3.onlinehosting.cz... |
| MX | 2 | maya.kostax.cz (pri: 30), emaya.kostax.cz (pri: 5) |
| TXT | 1 | v=spf1 a mx ~all |
| SOA | 1 | ns1.onlinehosting.cz tech.internetpartne |
Analysis
Hierarchy
dosycb.cz is the parent of mail.dosycb.cz.
IP Addresses
dosycb.cz resolves to a single IP: 188.120.193.213.
Other host names, for instance mars.kostax.cz, mail.akwp.cz, perseus.kostax.cz, zkusebna-k33.cz and akwp.cz share IP numbers with dosycb.cz.
Name Servers
dosycb.cz delegates to three name servers: ns1.onlinehosting.cz, ns2.onlinehosting.cz and ns3.onlinehosting.cz.
dosycb.cz shares some name servers with other domains, for example photopost.cz, arema.cz, eapraha.cz, supreme.cz and trsek.cz.
these name servers are commonly used with ns1.ceskymultihosting.cz, ns2.ceskymultihosting.cz, ns3.ceskymultihosting.cz, ns1.octgate.com, ns2.octgate.com, ns1.czechmultihosting.com, ns2.czechmultihosting.com and ns3.czechmultihosting.com.
Host names 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
dosycb.cz is served by two mail servers: emaya.kostax.cz and maya.kostax.cz.
dosycb.cz shares the mail server setup with other domains, for example emo.cz, aquazona.cz, tcmkongres.cz, imego.cz and kostax.cz.
dosycb.cz shares some mail servers with other domains, at least partially; for instance gymji.cz, knihjh.cz, zkusebna-k33.cz, akwp.cz and kolacovebehy.cz.
these mail servers are commonly used alongside mail6.ignum.cz and mail.tex-color.cz.
Host names with two IP numbers: emaya.kostax.cz points to: 2a02:c60:a120:18::3333 and 188.120.193.194.
Host names with one IP number: maya.kostax.cz points to: 188.120.193.4.