fyso.cz - robtex.com

fyso.cz

DNSSEC🔒 Signed (DS record present)
A2a00:19a0:3:71:0:d9c6:7168:1🇨🇿 ZONER-AS2a00:19a0::/32 ZONER-IPV6-NET
PTRchimera.zarea.net
A217.198.113.104🇨🇿 ZONER-AS217.198.112.0/20 ZONER-NET
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
TXTv=spf1 include:spf-zoner-zmail.zoner.com ~all
SOAns1.regzone.czadministrator@czechia.cz 2026-06-09 #2

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=1784000839

Same first word

Similar names

DNS History

8 records (8 active, 0 former)

20192020202120222023202420252026NSns1.regzone.czns1.regzone.dens1.regzone.infoMX10mx.zoner.com15mx.zoner.comrelay.zoner.comA217.198.113.1042a00:19a0:3:71:0:d9c6:7168:1
NSns1.regzone.cz2018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54
NSns1.regzone.de2018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54
NSns1.regzone.info2018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54
MX10mx.zoner.com2018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54
MX15mx.zoner.com2018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54
MXrelay.zoner.com2018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54
A217.198.113.1042018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54
A2a00:19a0:3:71:0:d9c6:7168:12018-05-12 → 2026-07-14 · 2 obs
● 2018-05-12 12:43:38
● 2026-07-14 04:08:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
fyso.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: 1726ms | Queries: -

📄 Records

TypeCountSample Data
A1217.198.113.104
AAAA12a00:19a0:3:71:0:d9c6:7168:1
NS3ns1.regzone.cz, ns1.regzone.de...
MX3relay.zoner.com (pri: 1), 10mx.zoner.com (pri: 10)...
TXT1v=spf1 include:spf-zoner-zmail.zoner.com
SOA1ns1.regzone.cz administrator.czechia.cz

📌 Glue Records Collected

Total: 2

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

Analysis

IP Addresses

fyso.cz has two IP addresses: 217.198.113.104 and 2a00:19a0:3:71:0:d9c6:7168:1

Additional host names — lander.cz, webtel.cz, www.isb.cz and two others — share IP numbers with fyso.cz.

Name Servers

fyso.cz carries NS records delegating to ns1.regzone.cz, ns1.regzone.de and ns1.regzone.info.

There is at least partial name server overlap between fyso.cz and other domains — surefire.cz, eeo.cz, shirts.eu and two more among them.

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

Mail Servers

Incoming mail for fyso.cz is delivered via three mail servers: 10mx.zoner.com, 15mx.zoner.com and relay.zoner.com.

fyso.cz shares mail servers — at least in part — with other domains, including pohoda.computer, vanocni-stromky.cz, registracni-pokladny.eu and two others.

10mx.zoner.com points to 217.198.120.36; 15mx.zoner.com points to 81.0.233.6; relay.zoner.com points to 217.198.120.100 — each hostname maps to exactly one IP address.