waterplus.cz - robtex.com
waterplus.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2001:1568::14🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | php7.web4u.cz | ||||||
| A | 81.91.86.14🇨🇿 WEB4U81.91.80.0/21 | ||||||
| NS | ns2.web4u.cz ⭐ | ||||||
| A | 2a02:a40:100:28ff::12🇨🇿 BlueTone-AS2a02:a40::/32 Ceske Radiokomunikace, a.s. | ||||||
| PTR | ns2.web4u.cz | ||||||
| A | 85.207.53.12🇨🇿 BlueTone-AS85.207.0.0/16 BlueTone-CRa-CZ Fourth address block | ||||||
| PTR | ns2.web4u.cz | ||||||
| NS | ns.web4u.cz | ||||||
| A | 2001:1568:fd::241🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | ns.web4u.cz | ||||||
| A | 185.14.224.241🇨🇿 WEB4U185.14.224.0/23 | ||||||
| PTR | ns.web4u.cz | ||||||
| MX | mx1.mailchannels.net ⭐ | ||||||
| A | 54.187.177.89🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-54-187-177-89.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ | ||||||
| A | 54.187.177.89🇺🇸 Amazon54.186.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-54-187-177-89.us-west-2.compute.amazonaws.com | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2025-05-04 #0 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1778662052 | ||||||
Same first word
waterplus.lv |
waterplus.com |
waterplus.co.kr |
waterplus.cz |
waterplus.vn |
waterplus.lt |
waterplus.com.au |
waterplus.ee |
Similar names
DNS History
15 records (6 active, 9 former)
●NSns.web4u.cz2020-01-11 → 2026-05-13 · 3 obs
● 2020-01-11 15:46:36
● 2026-05-13 09:28:00
○NSns1.tele3.cz2015-07-05 → 2016-02-28 · 4 obs
● 2016-02-28 23:46:50
○ 2016-06-22 04:58:20
○ 2026-05-13 09:28:00
○NSns2.tele3.cz2015-07-05 → 2016-02-28 · 4 obs
● 2016-02-28 23:46:50
○ 2016-06-22 04:58:20
○ 2026-05-13 09:28:00
●NSns2.web4u.cz2020-01-11 → 2026-05-13 · 3 obs
● 2020-01-11 15:46:36
● 2026-05-13 09:28:00
○NSns3.tele3.cz2015-07-05 → 2016-02-28 · 4 obs
● 2016-02-28 23:46:50
○ 2016-06-22 04:58:20
○ 2026-05-13 09:28:00
○NSns4.tele3.eu2015-11-14 → 2016-02-28 · 5 obs
● 2015-11-14 12:29:44
● 2016-02-28 23:46:50
○ 2016-06-22 04:58:20
○ 2026-05-13 09:28:00
○NSns4.tele3.sk2015-07-05 → 2015-07-05 · 3 obs
○ 2015-11-14 12:29:44
○ 2026-05-13 09:28:00
○MXmail.seolight.cz2015-07-05 → 2016-02-28 · 4 obs
● 2016-02-28 23:46:50
○ 2016-06-22 04:58:20
○ 2026-05-13 09:28:00
○MXmx.web4u.cz2020-01-11 → 2020-01-11 · 4 obs
● 2020-01-11 15:46:36
○ 2026-04-08 13:19:00
○ 2026-05-13 09:28:00
●MXmx1.mailchannels.net2026-04-08 → 2026-05-13 · 3 obs
● 2026-04-08 13:19:00
● 2026-05-13 09:28:00
●MXmx2.mailchannels.net2026-04-08 → 2026-05-13 · 3 obs
● 2026-04-08 13:19:00
● 2026-05-13 09:28:00
○A185.28.193.2352016-02-28 → 2016-02-28 · 4 obs
● 2016-02-28 23:46:50
○ 2016-06-22 04:58:20
○ 2026-05-13 09:28:00
●A2001:1568::142020-01-11 → 2026-05-13 · 3 obs
● 2020-01-11 15:46:36
● 2026-05-13 09:28:00
●A81.91.86.142020-01-11 → 2026-05-13 · 3 obs
● 2020-01-11 15:46:36
● 2026-05-13 09:28:00
○A93.170.16.1472015-07-05 → 2015-11-14 · 4 obs
● 2015-11-14 12:29:44
○ 2016-02-28 23:46:50
○ 2026-05-13 09:28:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, c.ns.nic.cz, b.ns.nic.cz, d.ns.nic.cz | - |
| waterplus.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1044ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.14 |
| AAAA | 1 | 2001:1568::14 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 2 | mx1.mailchannels.net (pri: 10), mx2.mailchannels.net (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.web4u.cz, ns.web4u.cz, ns2.web4u.cz...)
Analysis
IP Addresses
waterplus.cz points to two IP numbers: 2001:1568::14 and 81.91.86.14.
Other host names, for instance sehnal.cz, ostrava-slezska.com, d121.server4u.cz, web69.cz and boardnation.net share IP numbers with waterplus.cz.
Name Servers
waterplus.cz is delegated to two name servers: ns2.web4u.cz and ns.web4u.cz.
waterplus.cz uses the same name server setup as other domains, for instance cyber-security.cz, artificialflowers-online.com, pebeo.cz, emt-czech.cz and zarska.cz.
Host names with two IP numbers:
The host ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12.
The host ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241.
Mail Servers
waterplus.cz is handled by two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
waterplus.cz shares the same mail server setup as other domains, including cutekr.com, 341fss.com, robertab-official.com, sainio.org and ulfhedinnvikings.com.
waterplus.cz shares at least some mail servers with other domains, for instance heltenkelt.se.
Host names with a single IP number:
mx1.mailchannels.net points to 54.187.177.89.
mx2.mailchannels.net points to 54.187.177.89.
Host names pointing to 54.187.177.89: mx1.mailchannels.net and mx2.mailchannels.net.