czwoptics.com - robtex.com
czwoptics.com
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1774693327 | ||||||
Same first word
czwoptics.com |
DNS History
12 records (7 active, 5 former)
○NSalfa.ns.active24.cz2015-05-21 → 2017-06-05 · 4 obs
● 2017-06-05 02:39:06
○ 2026-02-16 09:50:50
○ 2026-03-28 10:39:58
○NSbeta.ns.active24.cz2015-05-21 → 2017-06-05 · 4 obs
● 2017-06-05 02:39:06
○ 2026-02-16 09:50:50
○ 2026-03-28 10:39:58
●NSns1.websupport.cz2026-02-16 → 2026-03-28 · 3 obs
● 2026-02-16 09:50:50
● 2026-03-28 10:39:58
●NSns2.websupport.cz2026-02-16 → 2026-03-28 · 3 obs
● 2026-02-16 09:50:50
● 2026-03-28 10:39:58
●NSns3.websupport.eu2026-02-16 → 2026-03-28 · 3 obs
● 2026-02-16 09:50:50
● 2026-03-28 10:39:58
○MXin.smtp.cz2015-05-21 → 2016-09-11 · 4 obs
● 2016-09-11 10:09:00
○ 2017-06-05 02:39:06
○ 2026-03-28 10:39:58
○MXmx.smtp.cz2015-05-21 → 2016-09-11 · 4 obs
● 2016-09-11 10:09:00
○ 2017-06-05 02:39:06
○ 2026-03-28 10:39:58
●MXmx1.active24.com2017-06-05 → 2026-03-28 · 3 obs
● 2017-06-05 02:39:06
● 2026-03-28 10:39:58
●MXmx2.active24.com2017-06-05 → 2026-03-28 · 3 obs
● 2017-06-05 02:39:06
● 2026-03-28 10:39:58
●A2a00:4b40:aaaa:2005::52026-02-16 → 2026-03-28 · 3 obs
● 2026-02-16 09:50:50
● 2026-03-28 10:39:58
●A37.9.175.1632026-02-16 → 2026-03-28 · 3 obs
● 2026-02-16 09:50:50
● 2026-03-28 10:39:58
○A81.162.195.152015-05-21 → 2017-06-05 · 4 obs
● 2017-06-05 02:39:06
○ 2026-02-16 09:50:50
○ 2026-03-28 10:39:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, m.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net... | - |
| czwoptics.com | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.13
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: 705ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.163 |
| AAAA | 1 | 2a00:4b40:aaaa:2005::5 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 2 | mx1.active24.com (pri: 10), mx2.active24.com (pri: 20) |
| TXT | 1 | v=spf1 ip4:81.162.206.136 include:spf.ac |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
Analysis
IP Addresses
czwoptics.com points to two IPs: 2a00:4b40:aaaa:2005::5 and 37.9.175.163.
Other host names, for instance skycity.cz, abartweb.org, edp.cz, biocel.technomont.cz and ditamara.cz share IP numbers with czwoptics.com.
Name Servers
czwoptics.com is delegated to name servers ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
czwoptics.com at least partially shares name servers with other domains such as rokis.cz, gsasolutions.eu, kmvs.cz, free-ze.eu and findlamour.com.
Host names with two IP numbers:
ns1.websupport.cz points to 2a10:bbc0::11 and 45.10.97.11.
ns2.websupport.cz points to 2a02:250:3::12 and 185.71.159.12.
ns3.websupport.eu points to 2a10:bbc0::13 and 45.10.97.13.
Mail Servers
Two mail servers handle czwoptics.com: mx1.active24.com and mx2.active24.com.
czwoptics.com shares the same mail server setup as other domains, including michaelreality.cz, peacock-film.com, bezplatnapravniporadna.cz, spid.cz and tkfint.eu.
czwoptics.com shares mail servers with other domains at least in part, for instance usmd.cz, hospudkavpodskali.cz, eurogap.cz, znojemskabeseda.cz and r-h-j.cz.
Eight IP numbers for mx1.active24.com: mx1.active24.com points to 2a02:4a8:ac24:101::97:4, 2a02:4a8:ac24:101::97:102, 2a02:4a8:ac24:101::97:111, 2a02:4a8:ac24:101::97:116, 81.95.97.4, 81.95.97.102, 81.95.97.111 and 81.95.97.116. Two IP numbers for mx2.active24.com: mx2.active24.com points to 2a00:4b40:1000:590:185:111:90:93 and 185.111.90.93.