devdev.cz - robtex.com
devdev.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 | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.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 2025-05-05 #0 | ||||||
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=1789539446 | ||||||
Same first word
Similar names
devved.co.in |
ddeevv.com |
devved.cn |
deedvv.dev |
edvedv.de |
devved.app |
dvedev.me |
dvedev.ru |
veddev.co.uk |
edvedv.com |
veddev.in |
dvedev.com |
veddev.online |
vedved.com |
devved.fi |
veddev.com |
Previous names
devcezhor.cz |
devcice.cz |
devcode.cz |
devcoffee.cz |
devcom.cz |
devcompany.cz |
devcon.cz |
devconf.cz |
devcontact.cz |
devconx.cz |
devcore.cz |
devcourse.cz |
devcraft.cz |
devcrm.cz |
devct.cz |
devcz.cz |
devday.cz |
devdays.cz |
devdeal.cz |
Next names
DNS History
6 records (6 active, 0 former)
●MXmx1.mailchannels.net2026-09-09 → 2026-09-16 · 2 obs
● 2026-09-16 06:40:52
●MXmx2.mailchannels.net2026-09-09 → 2026-09-16 · 2 obs
● 2026-09-16 06:40:52
●A2001:1568::142026-09-09 → 2026-09-16 · 2 obs
● 2026-09-16 06:40:52
●A81.91.86.142026-09-09 → 2026-09-16 · 2 obs
● 2026-09-16 06:40:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| devdev.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 913ms | 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: 4
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
devdev.cz has two IP addresses: 81.91.86.14 and 2001:1568::14
Additional host names — lpstudio.cz, znovubezdluhu.cz, klinika.cz and two others — share IP numbers with devdev.cz.
Name Servers
devdev.cz uses two name servers for its delegation: ns2.web4u.cz and ns.web4u.cz.
devdev.cz shares its name server setup with other domains, including svjnaorechovce.cz, cosi-fires.cz, denkmann.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
devdev.cz has two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
devdev.cz shares the same mail server setup as other domains, including bigskylandscaping.us, (0x736578)y-lexy.de, ananindeua.net.br and two others.
mx1.mailchannels.net resolves to 54.69.1.140; mx2.mailchannels.net resolves to the same IP address, 54.69.1.140.
Both mx1.mailchannels.net and mx2.mailchannels.net resolve to 54.69.1.140 IP addresses each.