czstart.cz - robtex.com
czstart.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 85.187.142.70🇺🇸 A2HOSTING85.187.140.0/22 | ||||||
| PTR | nl1-ts103.a2hosting.com | ||||||
| NS | ns1.a2hosting.com ⭐ | ||||||
| A | 13.248.158.180🇺🇸 Amazon13.248.144.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns2.a2hosting.com | ||||||
| A | 75.2.118.134🇺🇸 Amazon75.2.112.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| NS | ns3.a2hosting.com | ||||||
| A | 76.223.26.245🇺🇸 Amazon76.223.16.0/20 | ||||||
| PTR | a79764cc55c0ac9c0.awsglobalaccelerator.com | ||||||
| NS | ns4.a2hosting.com | ||||||
| A | 99.83.147.209🇺🇸 Amazon99.83.144.0/20 | ||||||
| PTR | abc65dd9a44b5332f.awsglobalaccelerator.com | ||||||
| MX | mail.czstart.cz ⭐ | ||||||
| A | 85.187.142.70🇺🇸 A2HOSTING85.187.140.0/22 | ||||||
| PTR | nl1-ts103.a2hosting.com | ||||||
| TXT | v=spf1 ip4:85.187.142.70 include:spf.a2hosting.com +a +mx ~all | ||||||
| SOA | ns1.a2hosting.comroot@nl1-ts103.a2hosting.com 2026-04-28 #3 | ||||||
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=1778152633 | ||||||
Previously MX for
czstart.cz |
Subdomains
Same first word
czstart.cz |
DNS History
11 records (6 active, 5 former)
●NSns1.a2hosting.com2026-03-23 → 2026-05-07 · 3 obs
● 2026-03-23 16:05:00
● 2026-05-07 11:37:24
○NSns1.hosting.totalservice.cz2015-08-20 → 2017-03-26 · 4 obs
● 2017-03-26 02:39:42
○ 2026-03-23 16:05:00
○ 2026-05-07 11:37:24
●NSns2.a2hosting.com2026-03-23 → 2026-05-07 · 3 obs
● 2026-03-23 16:05:00
● 2026-05-07 11:37:24
●NSns3.a2hosting.com2026-03-23 → 2026-05-07 · 3 obs
● 2026-03-23 16:05:00
● 2026-05-07 11:37:24
○NSns3.hosting.totalservice.cz2015-08-20 → 2017-03-26 · 4 obs
● 2017-03-26 02:39:42
○ 2026-03-23 16:05:00
○ 2026-05-07 11:37:24
●NSns4.a2hosting.com2026-03-23 → 2026-05-07 · 3 obs
● 2026-03-23 16:05:00
● 2026-05-07 11:37:24
○NSns4.hosting.totalservice.cz2015-08-20 → 2017-03-26 · 4 obs
● 2017-03-26 02:39:42
○ 2026-03-23 16:05:00
○ 2026-05-07 11:37:24
○MXczstart.cz2015-08-20 → 2017-03-26 · 4 obs
● 2017-03-26 02:39:42
○ 2026-03-23 16:05:00
○ 2026-05-07 11:37:24
●MXmail.czstart.cz2026-03-23 → 2026-05-07 · 3 obs
● 2026-03-23 16:05:00
● 2026-05-07 11:37:24
●A85.187.142.702026-03-23 → 2026-05-07 · 3 obs
● 2026-03-23 16:05:00
● 2026-05-07 11:37:24
○A85.207.99.202015-08-20 → 2017-03-26 · 4 obs
● 2017-03-26 02:39:42
○ 2026-03-23 16:05:00
○ 2026-05-07 11:37:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| czstart.cz | ns4.a2hosting.com, ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com | - |
✅ Authoritative Response
Server:99.83.147.209
NS records: ns4.a2hosting.com, ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for czstart.cz (unsigned zone)
⏱️ Timing
Total: 799ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 85.187.142.70 |
| NS | 4 | ns4.a2hosting.com, ns1.a2hosting.com... |
| MX | 1 | mail.czstart.cz (pri: 0) |
| TXT | 1 | v=spf1 ip4:85.187.142.70 include:spf.a2h |
| SOA | 1 | ns1.a2hosting.com root.nl1-ts103.a2hosti |
Analysis
Hierarchy
czstart.cz is the parent of mail.czstart.cz and www.czstart.cz.
IP Addresses
czstart.cz points to an IP address: 85.187.142.70.
other host names include d-risk.eu, emall.ng, mail.3eye.com.sa, imonda.co.uk and ovh.2x0.net; they share IP numbers with czstart.cz.
Name Servers
czstart.cz delegates to four name servers: ns1.a2hosting.com, ns2.a2hosting.com, ns3.a2hosting.com and ns4.a2hosting.com.
czstart.cz at least partially shares name servers with other domains, for instance designerstore.com, fr0.gs, yayinara.com, acuconsult.com and supracrete.com.
These name servers are commonly used with the following: ns1.mysecurecloudhost.com, ns2.mysecurecloudhost.com, ns3.mysecurecloudhost.com and ns4.mysecurecloudhost.com.
Host names with one IP number: ns1.a2hosting.com points to: 13.248.158.180; ns2.a2hosting.com points to: 75.2.118.134; ns3.a2hosting.com points to: 76.223.26.245; ns4.a2hosting.com points to: 99.83.147.209.
Mail Servers
czstart.cz is handled by a single mail server, mail.czstart.cz.
The host name mail.czstart.cz points to IP 85.187.142.70.