sofist.cz - dns.ninja
sofist.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 89.22.68.80🇨🇿 ADCSYSTEMS89.22.64.0/19 DAC-route-new | ||||||
| PTR | web.sofist.cz | ||||||
| NS | ns.ipg.sk ⭐ | ||||||
| A | 185.23.114.50🇸🇰 LEKOS185.23.114.0/23 | ||||||
| PTR | ns.ipg.sk | ||||||
| NS | ns-us.sofist.cz | ||||||
| A | 2605:a140:2230:7333::1🇺🇸 CONTABO-USA2605:a140::/32 710 N Tucker Blvd. STE 400A St. Louis MO 63101 United States | ||||||
| PTR | ns-us.sofist.cz | ||||||
| A | 212.28.184.4🇮🇹 CONTABO-USA212.28.184.0/21 | ||||||
| PTR | ns-us.sofist.cz | ||||||
| NS | ns.sofist.cz | ||||||
| A | 89.22.68.21🇨🇿 ADCSYSTEMS89.22.64.0/19 DAC-route-new | ||||||
| PTR | ns.sofist.cz | ||||||
| MX | smtp.sofist.cz ⭐ | ||||||
| A | 89.22.68.81🇨🇿 ADCSYSTEMS89.22.64.0/19 DAC-route-new | ||||||
| PTR | smtp.sofist.cz | ||||||
| MX | mail.domain.sk(30) | ||||||
| A | 185.23.114.56🇸🇰 LEKOS185.23.114.0/23 | ||||||
| PTR | mail.domain.sk | ||||||
| TXT | v=spf1 ip4:85.248.10.6 ip4:89.22.68.81 ip4:81.90.253.216 ip4:46.135.140.185 i... | ||||||
| SOA | ns.ipg.skdrotar@ipg.sk 2026-07-14 #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=1784049438 | ||||||
Subdomains
www.sofist.cz |
secure.sofist.cz |
ns.sofist.cz |
demokritos.sofist.cz |
smtp.sofist.cz |
platon.sofist.cz |
web.sofist.cz |
drotar.sofist.cz |
ns-us.sofist.cz |
epikuros.sofist.cz |
protagoras.sofist.cz |
misu.sofist.cz |
Same first word
Similar names
DNS History
10 records (6 active, 4 former)
●NSns-us.sofist.cz2026-02-16 → 2026-07-14 · 3 obs
● 2026-02-16 03:06:14
● 2026-07-14 17:57:54
●NSns.sofist.cz2015-08-29 → 2026-07-14 · 2 obs
● 2026-07-14 17:57:54
●MXmail.domain.sk2026-02-16 → 2026-07-14 · 3 obs
● 2026-02-16 03:06:14
● 2026-07-14 17:57:54
○MXns.ipg.sk2015-08-29 → 2018-01-28 · 4 obs
● 2018-01-28 12:18:58
○ 2026-02-16 03:06:14
○ 2026-07-14 17:57:54
○MXns.sofist.cz2015-08-29 → 2018-01-28 · 4 obs
● 2018-01-28 12:18:58
○ 2026-02-16 03:06:14
○ 2026-07-14 17:57:54
○MXplaton.sofist.cz2015-08-29 → 2018-01-28 · 4 obs
● 2018-01-28 12:18:58
○ 2026-02-16 03:06:14
○ 2026-07-14 17:57:54
●MXsmtp.sofist.cz2026-02-16 → 2026-07-14 · 3 obs
● 2026-02-16 03:06:14
● 2026-07-14 17:57:54
○A81.0.228.1772015-08-29 → 2018-01-28 · 4 obs
● 2018-01-28 12:18:58
○ 2026-02-16 03:06:14
○ 2026-07-14 17:57:54
●A89.22.68.802026-02-16 → 2026-07-14 · 3 obs
● 2026-02-16 03:06:14
● 2026-07-14 17:57:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | c.ns.nic.cz, d.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| sofist.cz | ns.ipg.sk, ns.sofist.cz, ns-us.sofist.cz | 3 records |
✅ Authoritative Response
Server:89.22.68.21
NS records: ns.ipg.sk, ns.sofist.cz, ns-us.sofist.cz
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 557ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 89.22.68.80 |
| NS | 3 | ns.ipg.sk, ns.sofist.cz... |
| MX | 2 | smtp.sofist.cz (pri: 0), mail.domain.sk (pri: 30) |
| TXT | 1 | v=spf1 ip4:85.248.10.6 ip4:89.22.68.81 i |
| SOA | 1 | ns.ipg.sk drotar.ipg.sk |
📌 Glue Records Collected
Total: 3
In-bailiwick: 3 (ns.sofist.cz, ns-us.sofist.cz, ns-us.sofist.cz)
Analysis
Hierarchy
The host names www.sofist.cz, secure.sofist.cz, ns.sofist.cz, demokritos.sofist.cz and smtp.sofist.cz — among a few others — fall under the parent domain sofist.cz.
IP Addresses
sofist.cz resolves to one IP address: 89.22.68.80.
www.sofist.cz, dzaniben.cz, sql.cz and two other host names share IP numbers with sofist.cz.
Name Servers
sofist.cz has three name servers — ns-us.sofist.cz, ns.sofist.cz and ns.ipg.sk.
At least some of sofist.cz's name servers are shared with other domains, for example podcast.sk, propressburg.sk, postgresql.sk and two more.
These name servers tend to be used in conjunction with the name servers rumcajz.pcv.cz.
Hostnames that resolve to two IP addresses:
ns-us.sofist.cz resolves to 212.28.184.4 and 2605:a140:2230:7333::1.
Hosts with just one IP address:
ns.sofist.cz resolves to 89.22.68.21.
ns.ipg.sk resolves to 185.23.114.50.
Mail Servers
Mail for sofist.cz is handled by two mail servers — smtp.sofist.cz and mail.domain.sk.
sofist.cz uses an identical mail server configuration to several other domains — among them singularity.cz, drotar.cz, nanook.cz and two more.
sofist.cz has at least partial mail server overlap with other domains such as in4.sk, bauoptimierung.eu, mailbox.sk and two more.
It is common to find these mail servers used together with the mail servers one.hotair.cz and esmeralda.ipg.sk.
Each of smtp.sofist.cz and mail.domain.sk has one IP address: smtp.sofist.cz uses 89.22.68.81 and mail.domain.sk uses 185.23.114.56.