bt-com.ch - robtex.com
bt-com.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 2026-03-29 #28 | ||||||
Subdomains
mail.bt-com.ch |
Same first word
Similar names
DNS History
11 records (4 active, 7 former)
○NSns1.mironet.ch2015-08-17 → 2021-09-20 · 3 obs
● 2021-09-20 11:57:12
○ 2026-03-29 13:26:28
○NSns2.mironet.ch2015-08-17 → 2021-09-20 · 3 obs
● 2021-09-20 11:57:12
○ 2026-03-29 13:26:28
○NSns3.mironet.ch2015-08-17 → 2021-09-20 · 3 obs
● 2021-09-20 11:57:12
○ 2026-03-29 13:26:28
●MXbtcom-ch0e.mail.protection.outlook.com2021-09-20 → 2026-03-29 · 3 obs
● 2021-09-20 11:57:12
● 2026-03-29 13:26:28
○MXmail.bt-com.ch2015-08-17 → 2017-01-23 · 4 obs
● 2017-01-23 03:23:52
○ 2021-09-20 11:57:12
○ 2026-03-29 13:26:28
●A198.202.211.12026-03-29 → 2026-03-29 · 2 obs
● 2026-03-29 13:26:28
○A2a00:17e0::cccc2021-09-20 → 2021-09-20 · 3 obs
● 2021-09-20 11:57:12
○ 2026-03-29 13:26:28
○A91.212.196.1552021-09-20 → 2021-09-20 · 3 obs
● 2021-09-20 11:57:12
○ 2026-03-29 13:26:28
○A91.212.196.232015-08-17 → 2017-01-23 · 4 obs
● 2017-01-23 03:23:52
○ 2021-09-20 11:57:12
○ 2026-03-29 13:26:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| bt-com.ch | ns2.cyon.ch, ns1.cyon.ch | 4 records |
✅ Authoritative Response
Server:91.206.24.2
NS records: ns2.cyon.ch, ns1.cyon.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bt-com.ch (unsigned zone)
⏱️ Timing
Total: 442ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 198.202.211.1 |
| NS | 2 | ns2.cyon.ch, ns1.cyon.ch |
| MX | 1 | btcom-ch0e.mail.protection.outlook.com ( |
| TXT | 2 | MS=ms47332022, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1.cyon.ch server.cyon.ch |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.cyon.ch, ns1.cyon.ch, ns2.cyon.ch...)
Analysis
Hierarchy
bt-com.ch is the parent of mail.bt-com.ch.
IP Addresses
bt-com.ch resolves to one IP number: 198.202.211.1.
other host names including scandinavianxpo.com, treetop.at, sandserif.com, marbll.com and inventeur.eu share IP numbers with bt-com.ch.
Name Servers
bt-com.ch is delegated to two name servers ns1.cyon.ch and ns2.cyon.ch.
bt-com.ch shares the same name server setup as other domains, for instance buchmannschule.com, romp.ch, jugendsinfonieorchester.ch, krippendorf.ch and sjb.ch.
Host names with two IP numbers:
The host name ns1.cyon.ch points to 2a01:ab20:0:185::2 and 185.174.216.2; the host name ns2.cyon.ch points to 2001:67c:234::2 and 91.206.24.2.
Mail Servers
bt-com.ch is handled by a single mail server, btcom-ch0e.mail.protection.outlook.com.
Host btcom-ch0e.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca3c::, 2a01:111:f403:ca3c::1, 2a01:111:f403:ca3c::2, 2a01:111:f403:ca3e::1, 52.101.185.12, 52.101.185.13, 52.101.185.14 and 52.101.187.1.