koutecky.name - robtex.com
koutecky.name
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a03:3b40:fe:22::🇨🇿 MASTER-AS2a03:3b40::/40 VPSFREE-IPV6-PRG2 | ||||||
| PTR | mail.ef5.cz | ||||||
| A | 37.205.14.145🇨🇿 MASTER-AS37.205.12.0/22 VPSFREE-PRG6 | ||||||
| NS | ns.forpsi.net ⭐ | ||||||
| A | 2001:15e8:101:1::c282🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.net | ||||||
| A | 81.2.194.130🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | ns.forpsi.net | ||||||
| NS | ns.forpsi.cz | ||||||
| A | 2001:15e8:201:1::d1b9🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.cz | ||||||
| A | 81.2.209.185🇨🇿 INTERNET-CZ81.2.209.0/24 | ||||||
| PTR | ns.forpsi.cz | ||||||
| NS | ns.forpsi.it | ||||||
| A | 2a00:6d41:2:1::5🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network | ||||||
| PTR | ns.forpsi.it | ||||||
| A | 95.110.254.165🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network | ||||||
| PTR | host165-254-110-95.serverdedicati.aruba.it | ||||||
| MX | mail.ef5.cz ⭐ | ||||||
| A | 2a03:3b40:fe:22::🇨🇿 MASTER-AS2a03:3b40::/40 VPSFREE-IPV6-PRG2 | ||||||
| PTR | mail.ef5.cz | ||||||
| A | 37.205.14.145🇨🇿 MASTER-AS37.205.12.0/22 VPSFREE-PRG6 | ||||||
| PTR | mail.ef5.cz | ||||||
| TXT | v=spf1 ip4:37.205.14.145 ip6:2a03:3b40:fe:22:: a mx include:_spf.google.com i... | ||||||
| SOA | ns.forpsi.netadmin@forpsi.com 2025-05-15 #1 | ||||||
name
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ac1.nstld.com ⭐ | ||||||
| NS | ac2.nstld.com | ||||||
| NS | ac3.nstld.com | ||||||
| NS | ac4.nstld.com | ||||||
| SOA | ac1.nstld.cominfo@verisign-grs.com serial=1783779790 | ||||||
Same first word
DNS History
9 records (6 active, 3 former)
●NSns.forpsi.net2015-08-10 → 2026-07-11 · 2 obs
● 2026-07-11 14:24:16
●MXmail.ef5.cz2026-02-16 → 2026-07-11 · 3 obs
● 2026-02-16 11:50:22
● 2026-07-11 14:24:16
○MXmail.koutecky.name2015-08-10 → 2020-02-10 · 4 obs
● 2020-02-10 06:15:12
○ 2026-02-16 11:50:22
○ 2026-07-11 14:24:16
○A2a01:430:17:1::362015-08-10 → 2020-02-10 · 4 obs
● 2020-02-10 06:15:12
○ 2026-02-16 11:50:22
○ 2026-07-11 14:24:16
●A2a03:3b40:fe:22::2026-02-16 → 2026-07-11 · 3 obs
● 2026-02-16 11:50:22
● 2026-07-11 14:24:16
●A37.205.14.1452026-02-16 → 2026-07-11 · 3 obs
● 2026-02-16 11:50:22
● 2026-07-11 14:24:16
○A83.167.228.862015-08-10 → 2020-02-10 · 4 obs
● 2020-02-10 06:15:12
○ 2026-02-16 11:50:22
○ 2026-07-11 14:24:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| name | ac1.nstld.com, ac2.nstld.com, ac3.nstld.com, ac4.nstld.com | - |
| koutecky.name | ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net | - |
✅ Authoritative Response
Server:81.2.209.185
NS records: ns.forpsi.cz, ns.forpsi.it, ns.forpsi.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for koutecky.name (unsigned zone)
⏱️ Timing
Total: 2184ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.205.14.145 |
| AAAA | 1 | 2a03:3b40:fe:22:: |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| MX | 1 | mail.ef5.cz (pri: 10) |
| TXT | 1 | v=spf1 ip4:37.205.14.145 ip6:2a03:3b40:f |
| SOA | 1 | ns.forpsi.net admin.forpsi.com |
Analysis
IP Addresses
koutecky.name points to the IP addresses 37.205.14.145 and 2a03:3b40:fe:22::
Among the host names that share IP numbers with koutecky.name are mail.ef5.cz, noach.cz, travna.eu and two others.
Name Servers
koutecky.name carries NS records delegating to ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
The name servers of koutecky.name overlap at least partially with those of other domains — among them ewq.cz, sametic.cz, vseojidle.cz and two more.
These name servers commonly appear in combination with the name servers ns.forpsi.us.
ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net are three hostnames that each resolve to a pair of IP addresses: ns.forpsi.cz to 81.2.209.185 and 2001:15e8:201:1::d1b9, ns.forpsi.it to 95.110.254.165 and 2a00:6d41:2:1::5, and ns.forpsi.net to 81.2.194.130 and 2001:15e8:101:1::c282.
Mail Servers
koutecky.name routes its mail through a single mail server, mail.ef5.cz.
koutecky.name and domains like noach.cz share an identical mail server configuration.
koutecky.name has mail servers in common with other domains — ef5.cz being one example.
It is common to find these mail servers paired with the mail servers jabberwock.ucw.cz.
mail.ef5.cz resolves to two IP numbers — 37.205.14.145 and 2a03:3b40:fe:22::.