btech.ch - dns.ninja
btech.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 94.152.41.67🇵🇱 CF-KRK94.152.32.0/19 Hx - additional | ||||||
| PTR | xdev.e-kei.pl | ||||||
| NS | ns1.kei.pl ⭐ | ||||||
| A | 94.152.254.100🇵🇱 OXYLION-AS94.152.254.0/24 | ||||||
| PTR | ns1.kei.pl | ||||||
| NS | ns2.kei.pl | ||||||
| A | 94.152.255.100🇵🇱 OXYLION-AS94.152.255.0/24 | ||||||
| PTR | ns2.kei.pl | ||||||
| MX | btech.ch ⭐ | ||||||
| A | 94.152.41.67🇵🇱 CF-KRK94.152.32.0/19 Hx - additional | ||||||
| PTR | xdev.e-kei.pl | ||||||
| TXT | v=spf1 a mx include:spf.tld.pl -all | ||||||
| SOA | ns1.kei.pladmin@kei.pl 2026-03-25 #3 | ||||||
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 2026-07-30 #12 | ||||||
MX for
btech.ch |
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSdns.home.pl2015-08-18 → 2015-12-10 · 4 obs
● 2015-12-10 18:46:56
○ 2016-03-30 12:19:28
○ 2026-07-30 04:24:36
○NSdns2.home.pl2015-08-18 → 2015-12-10 · 4 obs
● 2015-12-10 18:46:56
○ 2016-03-30 12:19:28
○ 2026-07-30 04:24:36
○NSdns3.home.pl2015-08-18 → 2015-12-10 · 4 obs
● 2015-12-10 18:46:56
○ 2016-03-30 12:19:28
○ 2026-07-30 04:24:36
●NSns1.kei.pl2016-03-30 → 2026-07-30 · 3 obs
● 2016-03-30 12:19:28
● 2026-07-30 04:24:36
●NSns2.kei.pl2016-03-30 → 2026-07-30 · 3 obs
● 2016-03-30 12:19:28
● 2026-07-30 04:24:36
●MXbtech.ch2015-08-18 → 2026-07-30 · 2 obs
● 2026-07-30 04:24:36
○A89.161.162.892015-08-18 → 2015-12-10 · 4 obs
● 2015-12-10 18:46:56
○ 2016-03-30 12:19:28
○ 2026-07-30 04:24:36
●A94.152.41.672026-03-26 → 2026-07-30 · 3 obs
● 2026-03-26 01:59:04
● 2026-07-30 04:24:36
○A94.152.43.52016-03-30 → 2017-11-25 · 5 obs
● 2016-03-30 12:19:28
● 2017-11-25 07:28:32
○ 2026-03-26 01:59:04
○ 2026-07-30 04:24:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | b.nic.ch, f.nic.ch, a.nic.ch, d.nic.ch... | - |
| btech.ch | ns2.kei.pl, ns1.kei.pl | - |
✅ Authoritative Response
Server:94.152.255.100
NS records: ns2.kei.pl, ns1.kei.pl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for btech.ch (unsigned zone)
⏱️ Timing
Total: 506ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 94.152.41.67 |
| NS | 2 | ns2.kei.pl, ns1.kei.pl |
| MX | 1 | btech.ch (pri: 10) |
| TXT | 1 | v=spf1 a mx include:spf.tld.pl -all |
| SOA | 1 | ns1.kei.pl admin.kei.pl |
Analysis
Mail Server Role
btech.ch is listed as a mail server for itself.
IP Addresses
btech.ch resolves to one IP address: 94.152.41.67.
xdev.e-kei.pl, xdev.pl, bosta.pl and two other host names share IP numbers with btech.ch.
Name Servers
Two name servers handle the delegation for btech.ch: ns1.kei.pl and ns2.kei.pl.
btech.ch uses the same name servers as several other domains — among them minigolf.sopot.pl, databot.pl, jampol.pl and two more.
There is at least partial name server overlap between btech.ch and other domains — airportkrakow.eu, lucznik.org, sosulski.pl and two more among them.
These name servers tend to appear in combination with the name servers ns1.tld.pl, ns2.tld.pl, ns3.kei.pl and ns4.kei.pl.
ns1.kei.pl → 94.152.254.100 and ns2.kei.pl → 94.152.255.100: one IP number per host name.
Mail Servers
Mail for btech.ch is handled by one mail server — btech.ch.
btech.ch carries a single IP number, which is 94.152.41.67.