isl.cz - robtex.com
isl.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 78.141.239.248🇬🇧 AS-VULTR78.141.224.0/19 Vultr Assigned Prefix | ||||||
| PTR | 78.141.239.248.vultrusercontent.com | ||||||
| NS | ns.parktons.com ⭐ | ||||||
| A | 46.8.8.88🇨🇿 GRANSY46.8.8.0/24 | ||||||
| NS | gamma1.rdrhost.com | ||||||
| A | 78.141.239.248🇬🇧 AS-VULTR78.141.224.0/19 Vultr Assigned Prefix | ||||||
| PTR | 78.141.239.248.vultrusercontent.com | ||||||
| NS | gamma2.rdrhost.com | ||||||
| A | 45.77.230.88🇬🇧 AS-VULTR45.77.224.0/21 Vultr Assigned Prefix | ||||||
| PTR | 45.77.230.88.vultrusercontent.com | ||||||
| MX | mail.parktons.com ⭐ | ||||||
| A | 155.138.212.151🇺🇸 AS-VULTR155.138.192.0/19 Vultr Assigned Prefix | ||||||
| PTR | 155-138-212-151.lum-int.io | ||||||
| SOA | ns.parktons.comroot@parktons.com serial=2617179285 | ||||||
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=1784072842 | ||||||
Previously MX for
isl.cz |
Same first word
Similar names
DNS History
10 records (5 active, 5 former)
●NSgamma1.rdrhost.com2026-06-13 → 2026-07-15 · 3 obs
● 2026-06-13 08:58:16
● 2026-07-15 00:29:44
●NSgamma2.rdrhost.com2026-06-13 → 2026-07-15 · 3 obs
● 2026-06-13 08:58:16
● 2026-07-15 00:29:44
○NSns.forpsi.cz2015-08-17 → 2017-01-03 · 4 obs
● 2017-01-03 02:31:52
○ 2021-01-05 09:29:52
○ 2026-07-15 00:29:44
○NSns.forpsi.it2015-08-17 → 2017-01-03 · 4 obs
● 2017-01-03 02:31:52
○ 2021-01-05 09:29:52
○ 2026-07-15 00:29:44
○NSns.forpsi.net2015-08-17 → 2017-01-03 · 4 obs
● 2017-01-03 02:31:52
○ 2021-01-05 09:29:52
○ 2026-07-15 00:29:44
●NSns.parktons.com2026-06-13 → 2026-07-15 · 3 obs
● 2026-06-13 08:58:16
● 2026-07-15 00:29:44
○MXisl.cz2015-08-17 → 2017-01-03 · 4 obs
● 2017-01-03 02:31:52
○ 2021-01-05 09:29:52
○ 2026-07-15 00:29:44
●MXmail.parktons.com2026-06-13 → 2026-07-15 · 3 obs
● 2026-06-13 08:58:16
● 2026-07-15 00:29:44
●A78.141.239.2482026-06-13 → 2026-07-15 · 3 obs
● 2026-06-13 08:58:16
● 2026-07-15 00:29:44
○A81.2.210.692015-08-17 → 2017-01-03 · 4 obs
● 2017-01-03 02:31:52
○ 2021-01-05 09:29:52
○ 2026-07-15 00:29:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| isl.cz | gamma1.rdrhost.com, gamma2.rdrhost.com | - |
✅ Authoritative Response
Server:45.77.230.88
NS records: gamma1.rdrhost.com, gamma2.rdrhost.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for isl.cz (unsigned zone)
⏱️ Timing
Total: 1227ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 78.141.239.248 |
| NS | 2 | gamma1.rdrhost.com, gamma2.rdrhost.com |
| MX | 1 | mail.parktons.com (pri: 10) |
| SOA | 1 | ns.parktons.com root.parktons.com |
Analysis
IP Addresses
isl.cz points to a single IP number: 78.141.239.248.
Additional host names — nutrimax.cz, www.nore.cz, webcode.cz and two others — share IP numbers with isl.cz.
Name Servers
Three name servers are authoritative for isl.cz: ns.parktons.com, gamma1.rdrhost.com and gamma2.rdrhost.com.
There is at least partial name server overlap between isl.cz and other domains — 35.218.117.217.in-addr.arpa, mail.adults.cz, smtp.4love.cz and two more among them.
These name servers regularly appear alongside ns2.parktons.com, alpha1.rdrhost.com, alpha2.rdrhost.com and 6 other name servers in NS record sets.
Three hostnames, one IP address apiece: ns.parktons.com resolves to 46.8.8.88, gamma1.rdrhost.com resolves to 78.141.239.248 and gamma2.rdrhost.com resolves to 45.77.230.88.
Mail Servers
isl.cz has one mail server: mail.parktons.com.
isl.cz shares the same mail server setup as other domains, including mail.vbu.cz, www.zz3r0.com, ucko.cz and two others.
There is one IP number for mail.parktons.com: 155.138.212.151.