callback.cz - dns.ninja
callback.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 84.19.64.62🇨🇿 CBEZDRAT-AS84.19.64.0/19 Cesky Bezdrat | ||||||
| PTR | 64-62.eri.cz | ||||||
| NS | ns1.websupport.cz ⭐ | ||||||
| A | 2a10:bbc0::11🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns1.websupport.eu | ||||||
| A | 45.10.97.11🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| PTR | ns1.websupport.eu | ||||||
| NS | ns2.websupport.cz | ||||||
| A | 2a02:250:3::12🇸🇪 ACTIVE24-AS2a02:250:3::/48 | ||||||
| PTR | ns2.websupport.eu | ||||||
| A | 185.71.159.12🇸🇪 ACTIVE24-AS185.71.159.0/24 | ||||||
| PTR | ns2.websupport.eu | ||||||
| NS | ns3.websupport.eu | ||||||
| A | 2a10:bbc0::13🇨🇿 ACTIVE24-AS2a10:bbc0::/32 | ||||||
| PTR | ns3.websupport.eu | ||||||
| A | 45.10.97.13🇨🇿 ACTIVE24-AS45.10.97.0/24 | ||||||
| MX | dalo.eri.cz ⭐ | ||||||
| A | 84.19.64.20🇨🇿 CBEZDRAT-AS84.19.64.0/19 Cesky Bezdrat | ||||||
| PTR | dalo.eri.cz | ||||||
| TXT | v=spf1 ip4:84.19.64.0/24 ip4:84.19.75.213 ip4:84.19.71.19 mx ~all | ||||||
| SOA | ns1.websupport.czadmin@websupport.cz serial=1756122333 | ||||||
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=1784652443 | ||||||
Same first word
Similar names
DNS History
11 records (5 active, 6 former)
○NSalfa.ns.active24.cz2015-06-12 → 2018-12-07 · 4 obs
● 2018-12-07 14:53:06
○ 2026-02-26 08:16:24
○ 2026-07-21 17:16:24
○NSbeta.ns.active24.cz2015-06-12 → 2018-12-07 · 4 obs
● 2018-12-07 14:53:06
○ 2026-02-26 08:16:24
○ 2026-07-21 17:16:24
○NSgama.ns.active24.sk2015-06-12 → 2018-12-07 · 4 obs
● 2018-12-07 14:53:06
○ 2026-02-26 08:16:24
○ 2026-07-21 17:16:24
●NSns1.websupport.cz2026-02-26 → 2026-07-21 · 3 obs
● 2026-02-26 08:16:24
● 2026-07-21 17:16:24
●NSns2.websupport.cz2026-02-26 → 2026-07-21 · 3 obs
● 2026-02-26 08:16:24
● 2026-07-21 17:16:24
●NSns3.websupport.eu2026-02-26 → 2026-07-21 · 3 obs
● 2026-02-26 08:16:24
● 2026-07-21 17:16:24
●MXdalo.eri.cz2026-02-26 → 2026-07-21 · 3 obs
● 2026-02-26 08:16:24
● 2026-07-21 17:16:24
○MXmail.eri.cz2015-06-12 → 2018-12-07 · 4 obs
● 2018-12-07 14:53:06
○ 2026-02-26 08:16:24
○ 2026-07-21 17:16:24
○MXsmtp.eri.cz2015-06-12 → 2018-12-07 · 4 obs
● 2018-12-07 14:53:06
○ 2026-02-26 08:16:24
○ 2026-07-21 17:16:24
●A84.19.64.622026-02-26 → 2026-07-21 · 3 obs
● 2026-02-26 08:16:24
● 2026-07-21 17:16:24
○A84.19.64.752015-06-12 → 2018-12-07 · 4 obs
● 2018-12-07 14:53:06
○ 2026-02-26 08:16:24
○ 2026-07-21 17:16:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | b.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, c.ns.nic.cz | 8 records |
| callback.cz | ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu | - |
✅ Authoritative Response
Server:45.10.97.11
NS records: ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1052ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 84.19.64.62 |
| NS | 3 | ns1.websupport.cz, ns2.websupport.cz... |
| MX | 1 | dalo.eri.cz (pri: 10) |
| TXT | 1 | v=spf1 ip4:84.19.64.0/24 ip4:84.19.75.21 |
| SOA | 1 | ns1.websupport.cz admin.websupport.cz |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz...)
Analysis
IP Addresses
callback.cz has exactly one IP address — 84.19.64.62.
ul.cz, erimobile.cz, ceskybezdrat.cz plus two other host names have IP numbers in common with callback.cz.
Name Servers
callback.cz is delegated to three name servers: ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu.
callback.cz partially shares its NS delegation with several other domains, including aconill.com, hobbyking.cz, ilcikova.sk and two others.
These name servers regularly co-occur with the name servers ns1.websupport.sk, ns2.websupport.sk and ns3.websupport.sk.
ns1.websupport.cz, ns2.websupport.cz and ns3.websupport.eu each resolve to two IP addresses: ns1.websupport.cz resolves to 45.10.97.11 and 2a10:bbc0::11; ns2.websupport.cz resolves to 185.71.159.12 and 2a02:250:3::12; ns3.websupport.eu resolves to 45.10.97.13 and 2a10:bbc0::13.
Mail Servers
callback.cz uses one mail server — dalo.eri.cz.
The mail server setup of callback.cz matches that of other domains such as erikarta.cz, cirkusbernes.cz, specialistanet.cz and two others.
dalo.eri.cz resolves to a single IP number: 84.19.64.20.