bookkeeper.cz - robtex.com

bookkeeper.cz

DNSSEC🔒 Signed (DS record present)
A81.91.86.11🇨🇿 WEB4U81.91.80.0/21
PTRphp5.web4u.cz
NSns2.web4u.cz ⭐
A2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s.
PTRns2.web4u.cz
A85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block
PTRns2.web4u.cz
NSns.web4u.cz
A2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33
PTRns.web4u.cz
A185.14.224.241🇨🇿 WEB4U185.14.224.0/23
PTRns.web4u.cz
MXmx.web4u.cz ⭐
A2001:1568::7012🇨🇿 WEB4U2001:1568::/33
PTRmx.web4u.cz
A81.91.87.12🇨🇿 WEB4U81.91.80.0/21
PTRmx.web4u.cz
SOAns.web4u.czadmin@web4u.cz 2007-10-03 #1

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=1786569443

Same first word

bookkeeper.ca
bookkeeper.co.th
bookkeeper.io
bookkeeper.me
bookkeeper.network
bookkeeper.be
bookkeeper.com.ng
bookkeeper.amsterdam
bookkeeper.spdns.org
bookkeeper.cz
bookkeeper.guru
bookkeeper.co.jp
bookkeeper.ee
bookkeeper.com.ua
bookkeeper.ch
bookkeeper.pro
bookkeeper.live
bookkeeper.cn
bookkeeper.com
bookkeeper.online
bookkeeper.biz
bookkeeper.com.mx
bookkeeper.pl
bookkeeper.solutions
bookkeeper.com.au
bookkeeper.email
bookkeeper.sk
bookkeeper.org
bookkeeper.ph
bookkeeper.bg
bookkeeper.kiev.ua
bookkeeper.co
bookkeeper.miami

Similar names

keeperbook.com
bookpeeker.com
keeperbook.ru
keepbooker.com

DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026NSns.web4u.czns2.web4u.czMXmx.web4u.czmail.bookkeeper.czA81.91.86.11
●NSns.web4u.cz2015-08-06 → 2026-08-12 · 2 obs
● 2015-08-06 02:21:36
● 2026-08-12 22:19:52
●NSns2.web4u.cz2015-08-06 → 2026-08-12 · 2 obs
● 2015-08-06 02:21:36
● 2026-08-12 22:19:52
○MXmail.bookkeeper.cz2015-08-06 → 2018-09-29 · 4 obs
● 2015-08-06 02:21:36
● 2018-09-29 10:32:38
○ 2026-06-10 07:32:38
○ 2026-08-12 22:19:52
●MXmx.web4u.cz2026-06-10 → 2026-08-12 · 3 obs
○ 2018-09-29 10:32:38
● 2026-06-10 07:32:38
● 2026-08-12 22:19:52
●A81.91.86.112015-08-06 → 2026-08-12 · 2 obs
● 2015-08-06 02:21:36
● 2026-08-12 22:19:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
czd.ns.nic.cz, b.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz-
bookkeeper.czns2.web4u.cz, ns.web4u.cz4 records

✅ Authoritative Response

Server:185.14.224.241

NS records: ns2.web4u.cz, ns.web4u.cz

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 533ms | Queries: -

📄 Records

TypeCountSample Data
A181.91.86.11
NS2ns.web4u.cz, ns2.web4u.cz
MX1mx.web4u.cz (pri: 10)
SOA1ns.web4u.cz admin.web4u.cz

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns2.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)

Analysis

IP Addresses

bookkeeper.cz directs to one IP number, which is 81.91.86.11.

Among the host names that share IP numbers with bookkeeper.cz are unassigned-81-91-87-158.web4u.cz, unassigned-81-91-86-186.web4u.cz, cerrum.com and two others.

Name Servers

bookkeeper.cz is served by two delegated name servers, ns2.web4u.cz and ns.web4u.cz.

bookkeeper.cz has the same name server delegation as a number of other domains, such as cirkopolis.cz, dragon-bits.com, vyrobavlajek.com and two more.

Each of the two host names carries two IP addresses: ns2.web4u.cz points to 85.207.53.12 and 2a02:a40:100:28ff::12, and ns.web4u.cz points to 185.14.224.241 and 2001:1568:fd::241.

Mail Servers

bookkeeper.cz routes its mail through a single mail server, mx.web4u.cz.

bookkeeper.cz has the same mail server arrangement as a number of other domains, for example rprojekt.cz, na-vetre.cz, edico.cz and two more.

There is at least a partial overlap in mail servers between bookkeeper.cz and other domains like kekesi.cz, c42.cz and creditcheck.cz.

mx.web4u.cz has two IP addresses: 81.91.87.12 and 2001:1568::7012.