cacs24.com - robtex.com
cacs24.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.91.86.11🇨🇿 WEB4U81.91.80.0/21 | ||||||
| PTR | php5.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 | mx10.websupport.sk ⭐ | ||||||
| A | 2a00:4b40:aaaa:2101:45:13:137:110🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| PTR | mx10.websupport.sk | ||||||
| A | 45.13.137.110🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24 | ||||||
| PTR | m1-u6-mx.websupport.sk | ||||||
| MX | mx20.websupport.sk(100) | ||||||
| A | 2a00:4b40:aaaa:2101:45:13:137:109🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| PTR | mx20.websupport.sk | ||||||
| A | 45.13.137.109🇸🇰 WEBSUPPORT-SRO-SK-AS45.13.137.0/24 | ||||||
| PTR | m1-u5-mx.websupport.sk | ||||||
| TXT | v=spf1 a mx include:_spf.websupport.sk ?all | ||||||
| TXT | spf2.0/pra a mx include:_sid.websupport.sk ?all | ||||||
| SOA | ns.web4u.czadmin@web4u.cz 2026-02-10 #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=1775196097 | ||||||
Same first word
cacs24.com |
Similar names
DNS History
10 records (5 active, 5 former)
○MXmail.cacs24.com2015-08-05 → 2020-03-01 · 4 obs
● 2020-03-01 14:22:18
○ 2026-04-03 06:07:06
○ 2026-04-03 06:07:08
●MXmx10.websupport.sk2026-04-03 → 2026-04-03 · 3 obs
● 2026-04-03 06:07:06
● 2026-04-03 06:07:08
●MXmx20.websupport.sk2026-04-03 → 2026-04-03 · 3 obs
● 2026-04-03 06:07:06
● 2026-04-03 06:07:08
○A37.9.175.1552026-04-03 → 2026-04-03 · 2 obs
○ 2026-04-03 06:07:08
●A81.91.86.112026-04-03 → 2026-04-03 · 3 obs
● 2026-04-03 06:07:06
● 2026-04-03 06:07:08
○A84.16.52.1952017-02-15 → 2017-02-15 · 4 obs
● 2017-02-15 18:58:28
○ 2020-03-01 14:22:18
○ 2026-04-03 06:07:08
○A84.16.52.2402015-08-05 → 2016-07-11 · 4 obs
● 2016-07-11 00:53:34
○ 2017-02-15 18:58:28
○ 2026-04-03 06:07:08
○A86.110.226.1502020-03-01 → 2020-03-01 · 4 obs
● 2020-03-01 14:22:18
○ 2026-04-03 06:07:06
○ 2026-04-03 06:07:08
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, g.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net... | - |
| cacs24.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 cacs24.com (unsigned zone)
⏱️ Timing
Total: 763ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.91.86.11 |
| NS | 2 | ns.web4u.cz, ns2.web4u.cz |
| MX | 2 | mx10.websupport.sk (pri: 10), mx20.websupport.sk (pri: 100) |
| TXT | 2 | v=spf1 a mx include:_spf.websupport.sk ?, spf2.0/pra a mx include:_sid.websupport. |
| SOA | 1 | ns.web4u.cz admin.web4u.cz |
Analysis
IP Addresses
cacs24.com points to a single IP address: 81.91.86.11.
Other host names such as unassigned-81-91-85-61.web4u.cz, q2interactive.cz, unassigned-81-91-85-117.web4u.cz, unassigned-81-91-84-21.web4u.cz and podlahove-topeni.cz share IPs with cacs24.com.
Name Servers
Two name servers ns2.web4u.cz and ns.web4u.cz handle the delegation for cacs24.com.
cacs24.com shares the same name server setup as other domains, for example webaccessdmp.com, laserteam.cz, steptrans.eu, kytarovka.cz and obsivac.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
Two mail servers handle cacs24.com: mx10.websupport.sk and mx20.websupport.sk.
cacs24.com shares the same mail server setup as other domains, including spartakiada.sk, ponasom.sk, tahitianadventure.com, zubar-trencin.sk and particka.eu.
cacs24.com shares some mail servers with other domains, for example kontiro.com.
Host names with two IP numbers:
mx10.websupport.sk points to 2a00:4b40:aaaa:2101:45:13:137:110 and 45.13.137.110.
mx20.websupport.sk points to 2a00:4b40:aaaa:2101:45:13:137:109 and 45.13.137.109.