devdev.cz - dns.ninja
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🇨🇿 AS252482a02:a40::/32 | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 AS2524885.207.0.0/16 | ||||||
| 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 | ||||||
| PTR | ec2-54-69-1-140.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| A | 54.187.177.89🇺🇸 Amazon54.186.0.0/15 | ||||||
| PTR | ec2-54-187-177-89.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=1789634845 | ||||||
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 → 2026-09-17 · 2 obs
● 2026-09-17 09:45:52
●MXmx2.mailchannels.net2026-09-09 → 2026-09-17 · 2 obs
● 2026-09-17 09:45:52
●A2001:1568::142026-09-09 → 2026-09-17 · 2 obs
● 2026-09-17 09:45:52
●A81.91.86.142026-09-09 → 2026-09-17 · 2 obs
● 2026-09-17 09:45:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | 8 records |
| devdev.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: 2439ms | 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 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
devdev.cz resolves to the IP addresses 81.91.86.14 and 2001:1568::14
lpstudio.cz, znovubezdluhu.cz, klinika.cz and two other host names share IP numbers with devdev.cz.
Name Servers
devdev.cz is served by two delegated name servers, ns2.web4u.cz and ns.web4u.cz.
devdev.cz uses the same name servers as several other domains — among them svjnaorechovce.cz, cosi-fires.cz, denkmann.cz and two more.
Each of the two host names carries two IP addresses: ns2.web4u.cz points to 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz points to 185.14.224.241 and 2001:1568:fd::241.
Mail Servers
Mail for devdev.cz is handled by two mail servers — mx1.mailchannels.net and mx2.mailchannels.net.
devdev.cz uses an identical mail server configuration to several other domains — among them bigskylandscaping.us, (0x736578)y-lexy.de, ananindeua.net.br and two more.
mx1.mailchannels.net directs to 54.69.1.140 and mx2.mailchannels.net directs to 54.187.177.89; each host name points to exactly one IP number.