devlab.cz - dns.ninja
devlab.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns1.websupport.cz ⭐ | ||||||
| A | 2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns1.websupport.eu | ||||||
| A | 45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns1.websupport.eu | ||||||
| NS | ns2.websupport.cz | ||||||
| A | 2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48 | ||||||
| PTR | ns2.websupport.eu | ||||||
| A | 185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24 | ||||||
| PTR | ns2.websupport.eu | ||||||
| NS | ns3.websupport.eu | ||||||
| A | 2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns3.websupport.eu | ||||||
| A | 45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns3.websupport.eu | ||||||
| MX | mail.devlab.cz ⭐ | ||||||
| A | 212.24.159.22🇨🇿 QUANTCOM-AS212.24.128.0/19 Dial Telecom, a.s. | ||||||
| MX | ms54193274.msv1.invalid.outlook.com(20) | ||||||
| TXT | MS=ms34998130 | ||||||
| TXT | MS=ms54193274 | ||||||
| TXT | v=spf1 mx ip4:20.107.99.174 ip4:217.11.254.44 ~all | ||||||
| TXT | p1KZ9ZxFmGtdHDKj369UPqd/8VoYF7Ghx4YPnpygIA0ODEifySgMmmR80yjX8A5Pmh9IKOy10go0Q... | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1783067305 | ||||||
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=1786072641 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
○NSalfa.ns.active24.cz2015-07-09 → 2017-12-29 · 3 obs
● 2017-12-29 18:58:28
○ 2026-08-07 03:43:08
○NSbeta.ns.active24.cz2015-07-09 → 2017-12-29 · 3 obs
● 2017-12-29 18:58:28
○ 2026-08-07 03:43:08
○NSgama.ns.active24.sk2015-07-09 → 2017-12-29 · 3 obs
● 2017-12-29 18:58:28
○ 2026-08-07 03:43:08
●NSns1.websupport.cz2026-08-07 → 2026-08-07 · 2 obs
● 2026-08-07 03:43:08
●NSns2.websupport.cz2026-08-07 → 2026-08-07 · 2 obs
● 2026-08-07 03:43:08
●NSns3.websupport.eu2026-08-07 → 2026-08-07 · 2 obs
● 2026-08-07 03:43:08
●MXmail.devlab.cz2015-07-09 → 2026-08-07 · 2 obs
● 2026-08-07 03:43:08
●MXms54193274.msv1.invalid.outlook.com2015-07-09 → 2026-08-07 · 2 obs
● 2026-08-07 03:43:08
○A212.24.159.262015-07-09 → 2017-12-29 · 4 obs
● 2017-12-29 18:58:28
○ 2026-03-12 14:57:18
○ 2026-08-07 03:43:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| devlab.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.11
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1062ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mail.devlab.cz (pri: 10), ms54193274.msv1.invalid.outlook.com (pri |
| TXT | 4 | MS=ms34998130, MS=ms54193274... |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
Hierarchy
devlab.cz is a parent domain, with winhost.devlab.cz, linhost.devlab.cz and mail.devlab.cz beneath it.
Name Servers
devlab.cz carries NS records delegating to ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
devlab.cz has at least partial name server overlap with other domains, such as it-consult.cz, answira.cz, adell-group.cz and two others.
These name servers tend to appear together with the name servers ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu are three hostnames that each resolve to a pair of IP addresses: ns1.websupport.cz to 45.10.97.11 and 2a10:bbc0::11, ns2.websupport.cz to 185.71.159.12 and 2a02:250:3::12, and ns3.websupport.eu to 45.10.97.13 and 2a10:bbc0::13.
Mail Servers
devlab.cz has two mail servers: mail.devlab.cz and ms54193274.msv1.invalid.outlook.com.
The mail servers of devlab.cz are at least partially shared with other domains, including mail.devlab.cz.
Host names pointing to a single IP address:
The hostname mail.devlab.cz resolves to 212.24.159.22.