contextus.ch - dns.ninja
contextus.ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 52.2.192.9🇺🇸 Amazon52.2.0.0/15 EC2 IAD prefix | ||||||
| PTR | ec2-52-2-192-9.compute-1.amazonaws.com | ||||||
| NS | dns1.swizzonic.ch ⭐ | ||||||
| A | 2a01:8100:2911::2:184:5🇮🇹 REGISTER-AS2a01:8100:2000::/36 | ||||||
| A | 81.88.61.5🇮🇹 REGISTER-AS81.88.48.0/20 Register.IT S.p.A. prefix | ||||||
| PTR | host-81-88-61-5.dedicatedservers.it | ||||||
| NS | dns2.swizzonic.ch | ||||||
| A | 2a01:8100:2901::1:183:202🇮🇹 REGISTER-AS2a01:8100:2000::/36 | ||||||
| A | 81.88.58.219🇮🇹 REGISTER-AS81.88.58.0/24 Register.IT S.p.A. prefix | ||||||
| MX | mx.switchplus-mail.ch ⭐ | ||||||
| SOA | dns1.swizzonic.chhostmaster@swizzonic.ch 2022-12-15 #2 | ||||||
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 2026-08-05 #24 | ||||||
Same first word
contextus.net |
contextus.eu |
contextus.ch |
contextus.ee |
contextus.hu |
contextus.lt |
contextus.com |
contextus.pro |
contextus.de |
contextus.org |
contextus.nl |
contextus.fi |
contextus.se |
contextus.com.au |
Similar names
DNS History
8 records (4 active, 4 former)
●NSdns1.swizzonic.ch2026-04-01 → 2026-08-05 · 3 obs
● 2026-04-01 21:57:28
● 2026-08-05 10:56:56
●NSdns2.swizzonic.ch2026-04-01 → 2026-08-05 · 3 obs
● 2026-04-01 21:57:28
● 2026-08-05 10:56:56
○NSns.namespace4you.de2015-08-09 → 2017-08-20 · 4 obs
● 2017-08-20 23:31:08
○ 2026-04-01 21:57:28
○ 2026-08-05 10:56:56
○NSns2.namespace4you.de2015-08-09 → 2017-08-20 · 4 obs
● 2017-08-20 23:31:08
○ 2026-04-01 21:57:28
○ 2026-08-05 10:56:56
○MXmail.mail-ch.ch2015-08-09 → 2016-09-14 · 4 obs
● 2016-09-14 00:47:42
○ 2017-08-20 23:31:08
○ 2026-08-05 10:56:56
●MXmx.switchplus-mail.ch2017-08-20 → 2026-08-05 · 3 obs
● 2017-08-20 23:31:08
● 2026-08-05 10:56:56
○A184.72.229.1762015-08-09 → 2015-08-09 · 3 obs
○ 2015-12-19 00:52:34
○ 2026-08-05 10:56:56
●A52.2.192.92015-12-19 → 2026-08-05 · 3 obs
● 2015-12-19 00:52:34
● 2026-08-05 10:56:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | 10 records |
| contextus.ch | dns1.swizzonic.ch, dns2.swizzonic.ch | - |
✅ Authoritative Response
Server:81.88.58.219
NS records: dns1.swizzonic.ch, dns2.swizzonic.ch
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1344ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.2.192.9 |
| NS | 2 | dns1.swizzonic.ch, dns2.swizzonic.ch |
| MX | 1 | mx.switchplus-mail.ch (pri: 10) |
| SOA | 1 | dns1.swizzonic.ch hostmaster.swizzonic.c |
📌 Glue Records Collected
Total: 10
In-bailiwick: 10 (a.nic.ch, a.nic.ch, b.nic.ch...)
Analysis
IP Addresses
contextus.ch resolves to just one IP address, 52.2.192.9.
Two other host names, along with ajgillis.com, sxd.ch and lastminutelogisticsllc.com, also share IP numbers with contextus.ch.
Name Servers
contextus.ch is served by two delegated name servers, dns1.swizzonic.ch and dns2.swizzonic.ch.
contextus.ch shares its NS records with other domains, for example zucchetti.ch, grossert.ch, advoka.ch and two others.
Each of the two host names carries two IP addresses: dns1.swizzonic.ch points to 81.88.61.5 and 2a01:8100:2911::2:184:5, and dns2.swizzonic.ch points to 81.88.58.219 and 2a01:8100:2901::1:183:202.
Mail Servers
The sole mail server for contextus.ch is mx.switchplus-mail.ch.
Among the domains sharing a mail server setup with contextus.ch are bikerep.ch, 2bad-music.com, mail.geoo.ch and two others.
There is at least a partial MX overlap between contextus.ch and other domains, including zickzackzuck.ch, procult.ch, multidirection.ch and two others.