rtcsa.ch - dns.ninja
rtcsa.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 2026-06-24 #11 | ||||||
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
○NSdns1.oca.ch2015-07-24 → 2017-07-23 · 7 obs
● 2015-11-22 10:25:34
○ 2016-07-01 20:09:52
● 2017-04-02 00:18:22
● 2017-07-23 10:00:22
○ 2026-02-17 18:23:32
○ 2026-06-24 04:21:36
○NSdns2.oca.ch2015-07-24 → 2017-07-23 · 7 obs
○ 2015-11-22 10:25:34
● 2016-07-01 20:09:52
○ 2017-04-02 00:18:22
● 2017-07-23 10:00:22
○ 2026-02-17 18:23:32
○ 2026-06-24 04:21:36
●NSns21.cloudns.net2026-02-17 → 2026-06-24 · 3 obs
● 2026-02-17 18:23:32
● 2026-06-24 04:21:36
●NSpns21.cloudns.net2026-02-17 → 2026-06-24 · 3 obs
● 2026-02-17 18:23:32
● 2026-06-24 04:21:36
●NSpns22.cloudns.net2026-02-17 → 2026-06-24 · 3 obs
● 2026-02-17 18:23:32
● 2026-06-24 04:21:36
●NSpns23.cloudns.net2026-02-17 → 2026-06-24 · 3 obs
● 2026-02-17 18:23:32
● 2026-06-24 04:21:36
●NSpns24.cloudns.net2026-02-17 → 2026-06-24 · 3 obs
● 2026-02-17 18:23:32
● 2026-06-24 04:21:36
○MXmailgate.oca.cleanmail.ch2015-07-24 → 2017-07-23 · 4 obs
● 2017-07-23 10:00:22
○ 2026-02-17 18:23:32
○ 2026-06-24 04:21:36
●MXrtcsa-ch.mail.protection.outlook.com2026-02-17 → 2026-06-24 · 3 obs
● 2026-02-17 18:23:32
● 2026-06-24 04:21:36
●A80.74.152.802026-02-17 → 2026-06-24 · 3 obs
● 2026-02-17 18:23:32
● 2026-06-24 04:21:36
○A87.230.83.362015-07-24 → 2017-07-23 · 4 obs
● 2017-07-23 10:00:22
○ 2026-02-17 18:23:32
○ 2026-06-24 04:21:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | f.nic.ch, a.nic.ch, b.nic.ch, d.nic.ch... | - |
| rtcsa.ch | pns21.cloudns.net, pns22.cloudns.net, pns23.cloudns.net, pns24.cloudns.net | - |
✅ Authoritative Response
Server:185.136.97.96
NS records: pns21.cloudns.net, pns22.cloudns.net, pns23.cloudns.net, pns24.cloudns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rtcsa.ch (unsigned zone)
⏱️ Timing
Total: 808ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 80.74.152.80 |
| NS | 4 | pns21.cloudns.net, pns23.cloudns.net... |
| MX | 1 | rtcsa-ch.mail.protection.outlook.com (pr |
| TXT | 2 | MS=ms12552333, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns21.cloudns.net support.cloudns.net |
Analysis
IP Addresses
rtcsa.ch directs to one IP number, which is 80.74.152.80.
Among the host names that share IP numbers with rtcsa.ch are hitbot.ch, gloggner-treuhand.ch, mail.cczh.ch and two others.
Name Servers
The authoritative name servers for rtcsa.ch are ns21.cloudns.net, pns21.cloudns.net, pns22.cloudns.net and two others.
The name servers of rtcsa.ch overlap at least partially with those of other domains — among them runwlcs.com, tell-papier.com, robomix.in and two more.
These name servers are routinely co-deployed with the name servers pns23.cloudns.net, pns24.cloudns.net, ns22.cloudns.net and two others.
Hosts with two IP numbers each:
ns21.cloudns.net has two IP addresses: 109.201.133.61 and 2a00:1768:1001:9::21.
pns21.cloudns.net has two IP addresses: 185.136.96.96 and 2a06:fb00:1::1:96.
pns22.cloudns.net has two IP addresses: 185.136.97.96 and 2a06:fb00:1::2:96.
pns23.cloudns.net has two IP addresses: 185.136.98.96 and 2a06:fb00:1::3:96.
pns24.cloudns.net has two IP addresses: 185.136.99.96 and 2a06:fb00:1::4:96.
Mail Servers
rtcsa.ch routes its mail through a single mail server, rtcsa-ch.mail.protection.outlook.com.
rtcsa-ch.mail.protection.outlook.com directs to 8 IP numbers, including 52.101.185.12, 52.101.185.13 and 52.101.185.14, along with 5 other.