optronics.cz - robtex.com

optronics.cz

DNSSEC🔒 Signed (DS record present)
A217.67.30.12🇸🇰 AS-BENESTRA217.67.16.0/20 GTS Slovakia NET
PTRdw8.nameserver.sk
NSns1.regzone.cz ⭐
A2a00:19a0:3:71:0:d9c6:710a:1🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET
PTRns1.regzone.cz
A217.198.113.10🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
PTRns1.regzone.cz
NSns1.regzone.de
A2600:3c02::f03c:91ff:fedb:a6e7🇺🇸 AKAMAI-LINODE-AP2600:3c02::/32 Akamai Technologies
PTRns1.regzone.de
A23.92.29.43🇺🇸 AKAMAI-LINODE-AP23.92.28.0/22 Akamai Technologies
PTRns1.regzone.de
NSns1.regzone.info
A2001:1528:147::10🇨🇿 CASABLANCA-AS2001:1528::/32 Casablanca INT v6 network
PTRns1.regzone.info
A81.0.233.10🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT
PTRns1.regzone.info
MXrelay.zoner.com ⭐
A217.198.120.100🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
PTRrelay.zoner.com
MX10mx.zoner.com(10)
A217.198.120.36🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
PTR10mx.zoner.com
MX15mx.zoner.com(15)
A81.0.233.6🇨🇿 CASABLANCA-AS81.0.232.0/21 Casablanca INT
PTR15mx.zoner.com
SOAns1.regzone.czadministrator@czechia.cz 2026-07-05 #4

cz

DNSSEC🔒 Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1784958442

Same first word

optronics.com.mx
optronics.de
optronics.biz
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optronics.co.il
optronics.com
optronics.cz
optronics.pl
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optronics.rs
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optronics.tv
optronics.nl
optronics.no
optronics.net
optronics.co.uk
optronics.ro
optronics.mx

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DNS History

10 records (7 active, 3 former)

20162017201820192020202120222023202420252026NSns1.regzone.czns1.regzone.dens1.regzone.infoMX10mx.zoner.com15mx.zoner.comrelay.zoner.comA217.67.30.12217.198.114.96217.198.116.1882a00:19a0:3:72:0:d9c6:7260:1
●NSns1.regzone.cz2015-08-01 → 2026-07-25 · 2 obs
● 2015-08-01 00:45:00
● 2026-07-25 06:37:50
●NSns1.regzone.de2015-08-01 → 2026-07-25 · 2 obs
● 2015-08-01 00:45:00
● 2026-07-25 06:37:50
●NSns1.regzone.info2015-08-01 → 2026-07-25 · 2 obs
● 2015-08-01 00:45:00
● 2026-07-25 06:37:50
●MX10mx.zoner.com2016-09-20 → 2026-07-25 · 2 obs
● 2016-09-20 20:38:16
● 2026-07-25 06:37:50
●MX15mx.zoner.com2016-09-20 → 2026-07-25 · 2 obs
● 2016-09-20 20:38:16
● 2026-07-25 06:37:50
●MXrelay.zoner.com2016-09-20 → 2026-07-25 · 2 obs
● 2016-09-20 20:38:16
● 2026-07-25 06:37:50
○A217.198.114.962016-09-20 → 2017-05-26 · 5 obs
○ 2016-03-31 14:28:00
● 2016-09-20 20:38:16
● 2017-05-26 21:40:44
○ 2026-06-13 06:11:32
○ 2026-07-25 06:37:50
○A217.198.116.1882015-08-01 → 2016-03-31 · 4 obs
● 2015-08-01 00:45:00
● 2016-03-31 14:28:00
○ 2016-09-20 20:38:16
○ 2026-07-25 06:37:50
●A217.67.30.122026-06-13 → 2026-07-25 · 3 obs
○ 2017-05-26 21:40:44
● 2026-06-13 06:11:32
● 2026-07-25 06:37:50
○A2a00:19a0:3:72:0:d9c6:7260:12016-09-20 → 2017-05-26 · 5 obs
○ 2016-03-31 14:28:00
● 2016-09-20 20:38:16
● 2017-05-26 21:40:44
○ 2026-06-13 06:11:32
○ 2026-07-25 06:37:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
optronics.czns1.regzone.cz, ns1.regzone.de, ns1.regzone.info2 records

✅ Authoritative Response

Server:217.198.113.10

NS records: ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1268ms | Queries: -

📄 Records

TypeCountSample Data
A1217.67.30.12
NS3ns1.regzone.cz, ns1.regzone.de...
MX3relay.zoner.com (pri: 1), 10mx.zoner.com (pri: 10)...
SOA1ns1.regzone.cz administrator.czechia.cz

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1.regzone.cz, ns1.regzone.cz)

Analysis

IP Addresses

optronics.cz resolves to one IP address: 217.67.30.12.

Name Servers

optronics.cz is delegated to three name servers: ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info.

optronics.cz partially shares its NS delegation with several other domains, including kalitek.sk, latky.cz, zgh.sk and two others.

ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info each resolve to two IP addresses: ns1.regzone.cz resolves to 217.198.113.10 and 2a00:19a0:3:71:0:d9c6:710a:1; ns1.regzone.de resolves to 23.92.29.43 and 2600:3c02::f03c:91ff:fedb:a6e7; ns1.regzone.info resolves to 81.0.233.10 and 2001:1528:147::10.

Mail Servers

optronics.cz uses three mail servers — 10mx.zoner.com, 15mx.zoner.com and relay.zoner.com.

optronics.cz has at least partial mail server overlap with other domains such as besttrans.cz, bedimex.cz, austrian.cz and two more.

10mx.zoner.com, 15mx.zoner.com and relay.zoner.com each resolve to a single IP address: 10mx.zoner.com resolves to 217.198.120.36, 15mx.zoner.com resolves to 81.0.233.6 and relay.zoner.com resolves to 217.198.120.100.