fiskarsonline.cz - robtex.com
fiskarsonline.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 81.91.86.12🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | php53.web4u.cz | ||||||
| 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 | 54.69.1.140🇺🇸 Amazon54.68.0.0/15 EC2 PDX Prefix | ||||||
| PTR | ec2-54-69-1-140.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=1777259837 | ||||||
Subdomains
mail.fiskarsonline.cz |
DNS History
6 records (5 active, 1 former)
○MXmail.fiskarsonline.cz2015-06-21 → 2017-03-18 · 3 obs
● 2017-03-18 02:26:40
○ 2026-04-27 03:53:46
●MXmx1.mailchannels.net2026-04-27 → 2026-04-27 · 2 obs
● 2026-04-27 03:53:46
●MXmx2.mailchannels.net2026-04-27 → 2026-04-27 · 2 obs
● 2026-04-27 03:53:46
●A81.91.86.122015-06-21 → 2026-04-27 · 2 obs
● 2026-04-27 03:53:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| fiskarsonline.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: 943ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.12 |
| 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, ns2.web4u.cz, ns.web4u.cz...)
Analysis
Hierarchy
fiskarsonline.cz is the parent of mail.fiskarsonline.cz.
IP Addresses
fiskarsonline.cz resolves to one IP number: 81.91.86.12.
other host names including karolin.cz, lerl.eu, interierzone.com, fixity.cz and 1stsw.cz share IP numbers with fiskarsonline.cz.
Name Servers
fiskarsonline.cz is delegated to two name servers ns2.web4u.cz and ns.web4u.cz.
fiskarsonline.cz shares the same name server setup as other domains, for instance zahradnidily.cz, tarpanadvisory.cz, arenashop.cz, tipsprt.cz and terno.as.
Host names with two IP numbers:
The host name ns2.web4u.cz points to 2a02:a40:100:28ff::12 and 85.207.53.12; the host name ns.web4u.cz points to 2001:1568:fd::241 and 185.14.224.241.
Mail Servers
Two mail servers handle fiskarsonline.cz: mx1.mailchannels.net and mx2.mailchannels.net.
fiskarsonline.cz shares the same mail server setup as other domains, for instance jayce.com, mypimphand.com, paperlandmarks.com, agmuseum.ca and parkergravesmemorial.com.
Host names with one IP number:
mx1.mailchannels.net points to 54.187.177.89
mx2.mailchannels.net points to 54.69.1.140