spiralka.cz - robtex.com
spiralka.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 3.73.27.108🇩🇪 Amazon3.64.0.0/12 EC2 FRA Prefix | ||||||
| PTR | ec2-3-73-27-108.eu-central-1.compute.amazonaws.com | ||||||
| A | 3.125.172.46🇩🇪 Amazon3.124.0.0/14 EC2 FRA prefix | ||||||
| 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 | 18.236.29.166🇺🇸 Amazon18.236.0.0/15 EC2 PDX prefix | ||||||
| PTR | ec2-18-236-29-166.us-west-2.compute.amazonaws.com | ||||||
| MX | mx2.mailchannels.net ⭐ 🔒 | ||||||
| A | 52.38.143.159🇺🇸 Amazon52.36.0.0/14 EC2 PDX prefix | ||||||
| PTR | ec2-52-38-143-159.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=1771291036 | ||||||
Same first word
spiralka.cz |
Similar names
DNS History
11 records (6 active, 5 former)
○MXmail.spiralka.cz2015-07-25 → 2017-03-17 · 4 obs
● 2017-03-17 09:28:00
○ 2019-12-26 21:27:20
○ 2026-03-24 03:32:36
○MXmx.web4u.cz2019-12-26 → 2019-12-26 · 4 obs
● 2019-12-26 21:27:20
○ 2026-03-06 22:10:16
○ 2026-03-24 03:32:36
●MXmx1.mailchannels.net2026-03-06 → 2026-03-24 · 3 obs
● 2026-03-06 22:10:16
● 2026-03-24 03:32:36
●MXmx2.mailchannels.net2026-03-06 → 2026-03-24 · 3 obs
● 2026-03-06 22:10:16
● 2026-03-24 03:32:36
○A217.16.182.2502019-12-26 → 2019-12-26 · 4 obs
● 2019-12-26 21:27:20
○ 2026-03-06 22:10:16
○ 2026-03-24 03:32:36
●A3.125.172.462026-03-06 → 2026-03-24 · 3 obs
● 2026-03-06 22:10:16
● 2026-03-24 03:32:36
●A3.73.27.1082026-03-06 → 2026-03-24 · 3 obs
● 2026-03-06 22:10:16
● 2026-03-24 03:32:36
○A81.0.235.1972017-03-17 → 2017-03-17 · 4 obs
● 2017-03-17 09:28:00
○ 2019-12-26 21:27:20
○ 2026-03-24 03:32:36
○A81.91.92.1452015-07-25 → 2016-07-03 · 4 obs
● 2016-07-03 19:53:42
○ 2017-03-17 09:28:00
○ 2026-03-24 03:32:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| spiralka.cz | ns.web4u.cz, ns2.web4u.cz | 4 records |
✅ Authoritative Response
Server:185.14.224.241
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1143ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 3.73.27.108, 3.125.172.46 |
| 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
spiralka.cz resolves to two IP numbers: 3.73.27.108 and 3.125.172.46.
Other host names, for instance postmalegal.nl, arashiyuka.com, wasala.fi, watchandjewelry.eu and badapple.ie share IP numbers with spiralka.cz.
Name Servers
Two name servers ns2.web4u.cz and ns.web4u.cz handle delegation for spiralka.cz.
spiralka.cz uses the same name server setup as other domains, for example plastic3d.cz, tpsvt.cz, vapeking.cz, aiteq.eu and kubousek.cz.
Host names with two IP numbers:
ns2.web4u.cz points to: 2a02:a40:100:28ff::12 and 85.207.53.12
ns.web4u.cz points to: 2001:1568:fd::241 and 185.14.224.241
Mail Servers
spiralka.cz is handled by two mail servers: mx1.mailchannels.net and mx2.mailchannels.net.
spiralka.cz has the same mail server setup as other domains, including renoirgallery.com, outerbridgemagic.com, bannerpreviewsite.com, pointofsuccess.com and kirkor.com.
spiralka.cz shares some mail servers with other domains at least partially, for example moveco.net, anamariamendiola.com, selursocial.org.br and accutraineepw.com.
Host names with one IP number: The host name mx1.mailchannels.net points to 18.236.29.166 and the host name mx2.mailchannels.net points to 52.38.143.159.