celstat.com - robtex.com
celstat.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 40.115.33.198🇳🇱 Microsoft40.112.0.0/13 | ||||||
| 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 | mx.web4u.cz ⭐ | ||||||
| A | 2001:1568::7012🇨🇿 WEB4U2001:1568::/33 | ||||||
| PTR | mx.web4u.cz | ||||||
| A | 81.91.87.12🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | mx.web4u.cz | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2013-11-08 #1 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1778340216 | ||||||
Subdomains
mail.celstat.com |
Same first word
Similar names
DNS History
6 records (4 active, 2 former)
○MXmail.celstat.com2015-06-17 → 2017-02-12 · 4 obs
● 2017-02-12 11:16:46
○ 2019-12-30 13:12:52
○ 2026-05-09 15:27:44
●MXmx.web4u.cz2019-12-30 → 2026-05-09 · 3 obs
● 2019-12-30 13:12:52
● 2026-05-09 15:27:44
●A40.115.33.1982026-02-27 → 2026-05-09 · 3 obs
● 2026-02-27 17:00:52
● 2026-05-09 15:27:44
○A86.49.187.2282015-06-17 → 2019-12-30 · 4 obs
● 2019-12-30 13:12:52
○ 2026-02-27 17:00:52
○ 2026-05-09 15:27:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| celstat.com | ns.web4u.cz, ns2.web4u.cz | - |
✅ Authoritative Response
Server:85.207.53.12
NS records: ns.web4u.cz, ns2.web4u.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for celstat.com (unsigned zone)
⏱️ Timing
Total: 779ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 40.115.33.198 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 1 | mx.web4u.cz (pri: 10) |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
Hierarchy
celstat.com is a parent of mail.celstat.com.
IP Addresses
celstat.com points to a single IP number: 40.115.33.198.
Other host names, for instance bco.cz, umendliku.cz, linako.cz, dvereerkado.cz and 4.www.mjwjdxotgptbcod.bsdental.cz share IP numbers with celstat.com.
Name Servers
Delegation for celstat.com rests with two name servers, ns2.web4u.cz and ns.web4u.cz.
celstat.com shares the same name server setup as other domains, including zsed.cz, p-atelier.cz, barbie-obchod.cz, wolfsden.cz and drevocentrum-as.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
celstat.com is handled by a single mail server, mx.web4u.cz.
celstat.com uses the same mail server configuration as other domains, such as frontend.cz, metatypo.com, miraclis.eu, glassbar.cz and metv.cz.
celstat.com shares at least partially some mail servers with other domains, for example elubra.cz, ssrkunice.cz and biza.info.
mx.web4u.cz resolves to two IP numbers: 2001:1568::7012 and 81.91.87.12.