lrr.cz - robtex.com

lrr.cz

DNSSEC🔒 Signed (DS record present)
NSsld1.ns.nic.cz ⭐
A2001:1488:800:126::98🇨🇿 CZNIC-AS2001:1488::/32 CZ.NIC, z.s.p.o.
PTRsld1.ns.nic.cz
A217.31.207.98🇨🇿 CZNIC-AS217.31.192.0/20 CZNIC - NET
PTRsld1.ns.nic.cz
NSsld2.ns.nic.cz
A2001:1488:800:126::99🇨🇿 CZNIC-AS2001:1488::/32 CZ.NIC, z.s.p.o.
PTRsld2.ns.nic.cz
A217.31.207.99🇨🇿 CZNIC-AS217.31.192.0/20 CZNIC - NET
PTRsld2.ns.nic.cz
NSsld3.ns.nic.cz
A2001:1ab0:7e1e:d150::8:1🇨🇿 IGNUM-AS2001:1ab0::/32 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRsld3.ns.nic.cz
A217.31.57.6🇨🇿 IGNUM-AS217.31.48.0/20 Network of Ignum s.r.o. Czech Republic http://www.ignum.cz/
PTRsld3.ns.nic.cz
TXTv=spf1 -all
SOAsld1.ns.nic.czhostmaster@nic.cz serial=1776641205

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=1777081656
WOT: SAFE (61/100)

Same first word

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DNS History

3 records (3 active, 0 former)

NSsld1.ns.nic.czsld2.ns.nic.czsld3.ns.nic.cz
●NSsld1.ns.nic.cz2026-04-07 → 2026-04-25 · 2 obs
● 2026-04-07 00:58:10
● 2026-04-25 02:36:34
●NSsld2.ns.nic.cz2026-04-07 → 2026-04-25 · 2 obs
● 2026-04-07 00:58:10
● 2026-04-25 02:36:34
●NSsld3.ns.nic.cz2026-04-07 → 2026-04-25 · 2 obs
● 2026-04-07 00:58:10
● 2026-04-25 02:36:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, d.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz-
lrr.czsld1.ns.nic.cz, sld2.ns.nic.cz, sld3.ns.nic.cz-

✅ Authoritative Response

Server:217.31.207.98

NS records: sld1.ns.nic.cz, sld2.ns.nic.cz, sld3.ns.nic.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1090ms | Queries: -

📄 Records

TypeCountSample Data
NS3sld2.ns.nic.cz, sld1.ns.nic.cz...
TXT1v=spf1 -all
SOA1sld1.ns.nic.cz hostmaster.nic.cz

Analysis

Name Servers

lrr.cz is delegated to three name servers: sld1.ns.nic.cz, sld2.ns.nic.cz and sld3.ns.nic.cz.

lrr.cz at least partially shares name servers with other domains, for example openid.cz, cznic.org, esens.cz, 202.31.217.in-addr.arpa and knot-resolver.cz.

Host names with two IP numbers:

sld1.ns.nic.cz points to 2001:1488:800:126::98 and 217.31.207.98

sld2.ns.nic.cz points to 2001:1488:800:126::99 and 217.31.207.99

sld3.ns.nic.cz points to 2001:1ab0:7e1e:d150::8:1 and 217.31.57.6