noach.cz - robtex.com
noach.cz
| 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 | ns1.he.net ⭐ | ||||||
| A | 2001:470:100::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns1.he.net | ||||||
| A | 216.218.130.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns1.he.net | ||||||
| NS | ns2.he.net | ||||||
| A | 2001:470:200::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns2.he.net | ||||||
| A | 216.218.131.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns2.he.net | ||||||
| NS | ns3.he.net | ||||||
| A | 2001:470:300::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns3.he.net | ||||||
| A | 216.218.132.2🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| NS | ns4.he.net | ||||||
| A | 2001:470:400::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns4.he.net | ||||||
| A | 216.66.1.2🇺🇸 HURRICANE216.66.0.0/19 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns4.he.net | ||||||
| NS | ns5.he.net | ||||||
| A | 2001:470:500::2🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns5.he.net | ||||||
| A | 216.66.80.18🇺🇸 HURRICANE216.66.80.0/20 Hurricane Electric 55 South Market St San Jose, CA | ||||||
| PTR | ns5.he.net | ||||||
| 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 ~all | ||||||
| SOA | ns1.he.nethostmaster@he.net 2020-10-29 #2 | ||||||
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=1783270039 | ||||||
Same first word
Similar names
DNS History
10 records (8 active, 2 former)
○A2a01:430:17:1::362015-08-14 → 2020-03-16 · 4 obs
● 2020-03-16 12:15:42
○ 2026-06-13 00:15:42
○ 2026-07-05 16:59:26
●A2a03:3b40:fe:22::2026-06-13 → 2026-07-05 · 3 obs
● 2026-06-13 00:15:42
● 2026-07-05 16:59:26
●A37.205.14.1452026-06-13 → 2026-07-05 · 3 obs
● 2026-06-13 00:15:42
● 2026-07-05 16:59:26
○A83.167.228.862015-08-14 → 2020-03-16 · 4 obs
● 2020-03-16 12:15:42
○ 2026-06-13 00:15:42
○ 2026-07-05 16:59:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| noach.cz | ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net... | - |
✅ Authoritative Response
Server:216.218.131.2
NS records: ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net, ns5.he.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for noach.cz (unsigned zone)
⏱️ Timing
Total: 1474ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.205.14.145 |
| AAAA | 1 | 2a03:3b40:fe:22:: |
| NS | 5 | ns3.he.net, ns5.he.net... |
| MX | 1 | mail.ef5.cz (pri: 10) |
| TXT | 1 | v=spf1 ip4:37.205.14.145 ip6:2a03:3b40:f |
| SOA | 1 | ns1.he.net hostmaster.he.net |
Analysis
IP Addresses
noach.cz points to the IP addresses 37.205.14.145 and 2a03:3b40:fe:22::
travna.cz, mail.ef5.cz, travna.eu plus two other host names have IP numbers in common with noach.cz.
Name Servers
Five name servers handle delegation for noach.cz: ns1.he.net, ns2.he.net, ns3.he.net and two others.
There is at least partial name server overlap between noach.cz and other domains — ee.hu, 166.51.209.in-addr.arpa, galaviz.org and two more among them.
These name servers regularly appear alongside ns4.he.net, ns5.he.net, bigbiz.com and 3 other name servers in NS record sets.
Host names pointing to two IP addresses:
ns1.he.net maps to two IP addresses — 216.218.130.2 and 2001:470:100::2.
ns2.he.net maps to two IP addresses — 216.218.131.2 and 2001:470:200::2.
ns3.he.net maps to two IP addresses — 216.218.132.2 and 2001:470:300::2.
ns4.he.net maps to two IP addresses — 216.66.1.2 and 2001:470:400::2.
ns5.he.net maps to two IP addresses — 216.66.80.18 and 2001:470:500::2.
Mail Servers
noach.cz uses one mail server — mail.ef5.cz.
noach.cz uses the same mail servers as other domains, including koutecky.name.
noach.cz and other domains — ef5.cz for instance — share at least some mail servers.
These mail servers tend to be used in conjunction with the mail servers jabberwock.ucw.cz.
mail.ef5.cz carries two IP numbers: 37.205.14.145 and 2a03:3b40:fe:22::.