krup.cz - robtex.com
krup.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 80.188.42.210🇨🇿 O2-CZECH-REPUBLIC80.188.0.0/17 CZ.CZNET | ||||||
| NS | ns.grdns.cz ⭐ | ||||||
| A | 2001:15e8:101:1::c268🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.grdns.cz | ||||||
| A | 81.2.194.104🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | ns.grdns.cz | ||||||
| NS | ns.grdns.it | ||||||
| A | 2a00:6d41:2:1::7🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network | ||||||
| PTR | ns.grdns.it | ||||||
| A | 95.110.254.167🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network | ||||||
| PTR | ns.grdns.it | ||||||
| MX | mxavas.forpsi.com ⭐ | ||||||
| A | 81.2.195.200🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | mxavas.forpsi.com | ||||||
| TXT | v=spf1 a mx include:_spf.forpsi.com ~all | ||||||
| SOA | ns.grdns.czadmin@grdns.cz 2026-07-05 #1 | ||||||
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=1785770242 | ||||||
rank #4802 in the tld
WOT: SAFE (65/100)
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
○MXmx.grbox.cz2015-06-18 → 2017-08-19 · 4 obs
● 2017-08-19 20:22:26
○ 2026-03-27 00:49:34
○ 2026-08-03 15:57:46
●MXmxavas.forpsi.com2026-03-27 → 2026-08-03 · 3 obs
● 2026-03-27 00:49:34
● 2026-08-03 15:57:46
●A80.188.42.2102015-06-18 → 2026-08-03 · 2 obs
● 2026-08-03 15:57:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | 8 records |
| krup.cz | ns.grdns.cz, ns.grdns.it | 2 records |
✅ Authoritative Response
Server:95.110.254.167
NS records: ns.grdns.cz, ns.grdns.it
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3430ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 80.188.42.210 |
| NS | 2 | ns.grdns.cz, ns.grdns.it |
| MX | 1 | mxavas.forpsi.com (pri: 10) |
| TXT | 1 | v=spf1 a mx include:_spf.forpsi.com ~all |
| SOA | 1 | ns.grdns.cz admin.grdns.cz |
📌 Glue Records Collected
Total: 10
In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)
Out-of-bailiwick: 2 (ns.grdns.cz, ns.grdns.cz)
Analysis
IP Addresses
krup.cz directs to one IP number, which is 80.188.42.210.
Other host names, among them krup.eu and krup.sk, have IP numbers in common with krup.cz.
Name Servers
Two name servers handle the delegation for krup.cz: ns.grdns.cz and ns.grdns.it.
krup.cz has the same name server delegation as a number of other domains, such as scom.cz, engi.cz, mshtyn.cz and two more.
krup.cz is at least partially co-delegated on name servers with other domains, such as mojmirovce.sk.
ns.grdns.cz and ns.grdns.it both carry two IP addresses. The A records for ns.grdns.cz are 81.2.194.104 and 2001:15e8:101:1::c268; the A records for ns.grdns.it are 95.110.254.167 and 2a00:6d41:2:1::7.
Mail Servers
krup.cz routes its mail through a single mail server, mxavas.forpsi.com.
krup.cz has the same mail server arrangement as a number of other domains, for example ptc.hu, aquatechnic.cz, kauer.cz and two more.
krup.cz overlaps on mail servers with several other domains, for example vakert.com, g-g.cz, hawaiipc.cz and blackbass.cz.
mxavas.forpsi.com carries a single IP number, which is 81.2.195.200.