bitecoding.cz - dns.ninja
bitecoding.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2001:1568::14🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | php7.web4u.cz | ||||||
| A | 81.91.86.14🇨🇿 WEB4U81.91.80.0/21 | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | mx1.mailchannels.net ⭐ | ||||||
| A | 54.187.177.89🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-54-187-177-89.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| A | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2026-05-07 #2 | ||||||
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=1791483444 | ||||||
Same first word
bitecoding.com |
bitecoding.eu |
bitecoding.cz |
Similar names
Previous names
Next names
DNS History
6 records (6 active, 0 former)
●MXmx1.mailchannels.net2026-09-29 → 2026-10-08 · 2 obs
● 2026-10-08 19:04:14
●MXmx2.mailchannels.net2026-09-29 → 2026-10-08 · 2 obs
● 2026-10-08 19:04:14
●A2001:1568::142026-09-29 → 2026-10-08 · 2 obs
● 2026-10-08 19:04:14
●A81.91.86.142026-09-29 → 2026-10-08 · 2 obs
● 2026-10-08 19:04:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | 8 records |
| bitecoding.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1680ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.14 |
| AAAA | 1 | 2001:1568::14 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 2 | mx1.mailchannels.net (pri: 10), mx2.mailchannels.net (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
📌 Glue Records Collected
Total: 12
In-bailiwick: 8 (d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz...)
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
bitecoding.cz directs to two IP numbers, 81.91.86.14 and 2001:1568::14
Additional host names — logisticz.eu, map-your-school.com, webmail.kytarovka.cz and two others — share IP numbers with bitecoding.cz.
Name Servers
bitecoding.cz uses two name servers for its delegation: ns2.web4u.cz and ns.web4u.cz.
bitecoding.cz shares its name server setup with other domains, including kolektivpb.cz, kolinskydent.cz, kearm.cz and two others.
The two host names ns2.web4u.cz and ns.web4u.cz each have a pair of IP addresses: ns2.web4u.cz has 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz has 185.14.224.241 and 2001:1568:fd::241.
Mail Servers
bitecoding.cz has two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
bitecoding.cz shares the same mail server setup as other domains, including aponibluedesigns.com, 2bevoip.com, swerlk.com and two others.
The mail servers of bitecoding.cz are at least partially shared with other domains, including kajak-paddling.se.
mx1.mailchannels.net directs to 54.187.177.89 and mx2.mailchannels.net directs to 54.69.1.140; each host name points to exactly one IP number.