contech.ch - dns.ninja
contech.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 2026-07-14 #17 | ||||||
Subdomains
www.contech.ch |
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NSdns1.worldsoft-isp.net2015-07-07 → 2026-07-14 · 2 obs
● 2026-07-14 06:53:48
●NSdns2.worldsoft-isp.net2015-07-07 → 2026-07-14 · 2 obs
● 2026-07-14 06:53:48
○MXatmail08.worldsoft-mail.net2015-07-07 → 2016-11-26 · 4 obs
● 2016-11-26 03:32:20
○ 2026-02-14 23:55:34
○ 2026-07-14 06:53:48
●MXfilter10.antispamcloud.com2026-02-14 → 2026-07-14 · 3 obs
● 2026-02-14 23:55:34
● 2026-07-14 06:53:48
●MXfilter20.antispamcloud.com2026-02-14 → 2026-07-14 · 3 obs
● 2026-02-14 23:55:34
● 2026-07-14 06:53:48
●MXfilter30.antispamcloud.com2026-02-14 → 2026-07-14 · 3 obs
● 2026-02-14 23:55:34
● 2026-07-14 06:53:48
●MXfilter40.antispamcloud.com2026-02-14 → 2026-07-14 · 3 obs
● 2026-02-14 23:55:34
● 2026-07-14 06:53:48
●A116.203.169.2372026-02-14 → 2026-07-14 · 3 obs
● 2026-02-14 23:55:34
● 2026-07-14 06:53:48
○A217.196.177.1002015-07-07 → 2016-11-26 · 4 obs
● 2016-11-26 03:32:20
○ 2026-02-14 23:55:34
○ 2026-07-14 06:53:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| contech.ch | dns2.worldsoft-isp.net, dns1.worldsoft-isp.net | - |
✅ Authoritative Response
Server:193.70.98.10
NS records: dns2.worldsoft-isp.net, dns1.worldsoft-isp.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for contech.ch (unsigned zone)
⏱️ Timing
Total: 1966ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 116.203.169.237 |
| NS | 2 | dns2.worldsoft-isp.net, dns1.worldsoft-isp.net |
| MX | 4 | filter30.antispamcloud.com (pri: 30), filter20.antispamcloud.com (pri: 20)... |
| TXT | 1 | v=spf1 include:spf.antispamcloud.com ip4 |
| SOA | 1 | dns1.worldsoft-isp.net hostmaster.worlds |
Analysis
Hierarchy
contech.ch serves as the parent of www.contech.ch.
IP Addresses
contech.ch resolves to one IP address: 116.203.169.237.
sem-direkt.de, wartenberg-service.com, kraus-elektro-service.com and two other host names share IP numbers with contech.ch.
Name Servers
contech.ch uses two name servers for its delegation: dns1.worldsoft-isp.net and dns2.worldsoft-isp.net.
contech.ch uses the same name servers as several other domains — among them grimm-schmid.ch, bernhart-laufshop.ch, acryplex.ch and two more.
contech.ch has a partial name server overlap with other domains — among them worldsoft.ru and worldsoft-isp.net.
It is common to find these name servers paired with the name servers dns3.worldsoft-isp.net.
dns1.worldsoft-isp.net directs to 193.70.98.10 and dns2.worldsoft-isp.net directs to 162.55.77.70; each host name points to exactly one IP number.
Mail Servers
Four mail servers handle email for contech.ch: filter10.antispamcloud.com, filter20.antispamcloud.com, filter30.antispamcloud.com and filter40.antispamcloud.com.
contech.ch has at least partial mail server overlap with other domains such as fta.dk, kiveld.com, psychotherapie-kicher.at and two more.
filter10.antispamcloud.com and filter20.antispamcloud.com both resolve to 38.89.254.156 and 2001:550:2:61::2fc:100. filter30.antispamcloud.com resolves to 38.71.16.244 and 2001:550:2:3::62:100. filter40.antispamcloud.com resolves to 38.101.250.150 and 2001:550:2:78::ca:100.
Both filter10.antispamcloud.com and filter20.antispamcloud.com resolve to 2001:550:2:61::2fc:100 IP addresses each.
Both filter10.antispamcloud.com and filter20.antispamcloud.com resolve to 38.89.254.156 IP addresses each.