oltech.ch - dns.ninja
oltech.ch
ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.ch ⭐ | ||||||
| NS | b.nic.ch | ||||||
| NS | d.nic.ch | ||||||
| NS | e.nic.ch | ||||||
| NS | f.nic.ch | ||||||
| SOA | a.nic.chdns-operation@switch.ch 2026-08-14 #0 | ||||||
Subdomains
mail.oltech.ch |
Same first word
Similar names
DNS History
8 records (7 active, 1 former)
●NSns.hostpoint.ch2015-07-21 → 2026-08-13 · 2 obs
● 2026-08-13 22:41:54
●NSns2.hostpoint.ch2015-07-21 → 2026-08-13 · 2 obs
● 2026-08-13 22:41:54
●NSns3.hostpoint.ch2015-07-21 → 2026-08-13 · 2 obs
● 2026-08-13 22:41:54
●MXd324591.a.ess.de.barracudanetworks.com2026-02-22 → 2026-08-13 · 3 obs
● 2026-02-22 10:08:34
● 2026-08-13 22:41:54
●MXd324591.b.ess.de.barracudanetworks.com2026-02-22 → 2026-08-13 · 3 obs
● 2026-02-22 10:08:34
● 2026-08-13 22:41:54
○MXmail.oltech.ch2015-07-21 → 2019-01-06 · 4 obs
● 2019-01-06 10:43:10
○ 2026-02-22 10:08:34
○ 2026-08-13 22:41:54
●A217.26.52.352015-07-21 → 2026-08-13 · 2 obs
● 2026-08-13 22:41:54
●A2a00:d70:0:b:2002:0:d91a:34232026-04-06 → 2026-08-13 · 3 obs
● 2026-04-06 02:18:36
● 2026-08-13 22:41:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | e.nic.ch, b.nic.ch, f.nic.ch, a.nic.ch... | - |
| oltech.ch | ns.hostpoint.ch, ns2.hostpoint.ch, ns3.hostpoint.ch | 6 records |
✅ Authoritative Response
Server:217.26.51.254
NS records: ns.hostpoint.ch, ns2.hostpoint.ch, ns3.hostpoint.ch
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 818ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.26.52.35 |
| AAAA | 1 | 2a00:d70:0:b:2002:0:d91a:3423 |
| NS | 3 | ns3.hostpoint.ch, ns2.hostpoint.ch... |
| MX | 2 | d324591.b.ess.de.barracudanetworks.com (, d324591.a.ess.de.barracudanetworks.com ( |
| TXT | 1 | v=spf1 a mx include:spf.ess.de.barracuda |
| SOA | 1 | ns.hostpoint.ch hostmaster.hostpoint.ch |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns.hostpoint.ch, ns2.hostpoint.ch, ns3.hostpoint.ch...)
Analysis
Hierarchy
oltech.ch is a parent domain of mail.oltech.ch.
IP Addresses
oltech.ch directs to two IP numbers, 217.26.52.35 and 2a00:d70:0:b:2002:0:d91a:3423
Two other host names, along with atl-consulting.com, atb-vbz.ch and westy.ch, also share IP numbers with oltech.ch.
Name Servers
oltech.ch is served by three name servers: ns2.hostpoint.ch, ns3.hostpoint.ch and ns.hostpoint.ch.
oltech.ch shares at least some of its name servers with other domains, including open-systems.de, bbsh.ch, popel.ch and two others.
The hostnames ns2.hostpoint.ch, ns3.hostpoint.ch and ns.hostpoint.ch each direct to two IP addresses — ns2.hostpoint.ch to 217.26.53.254 and 2a00:d70:0:b::1d, ns3.hostpoint.ch to 217.26.60.250 and 2a00:d70:0:b::b, and ns.hostpoint.ch to 217.26.51.254 and 2a00:d70:0:b::d.
Mail Servers
oltech.ch is served by two mail servers, d324591.a.ess.de.barracudanetworks.com and d324591.b.ess.de.barracudanetworks.com.
d324591.a.ess.de.barracudanetworks.com points to 18.185.115.250, 18.185.115.251 and 18.185.115.252; likewise, d324591.b.ess.de.barracudanetworks.com points to 18.185.115.250, 18.185.115.251 and 18.185.115.252.
d324591.a.ess.de.barracudanetworks.com and d324591.b.ess.de.barracudanetworks.com each have 18.185.115.250 IP addresses.
d324591.a.ess.de.barracudanetworks.com and d324591.b.ess.de.barracudanetworks.com each have 18.185.115.251 IP addresses.
d324591.a.ess.de.barracudanetworks.com and d324591.b.ess.de.barracudanetworks.com each have 18.185.115.252 IP addresses.