contcom.ch - dns.ninja
contcom.ch
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns2.nextron.ch ⭐ | ||||||
| A | 193.108.137.3🇨🇭 AS-TINEO193.108.136.0/23 Nextron | ||||||
| PTR | dns2.nextron.ch | ||||||
| NS | dns.nextron.ch | ||||||
| A | 193.108.137.2🇨🇭 AS-TINEO193.108.136.0/23 Nextron | ||||||
| PTR | dns.nextron.ch | ||||||
| NS | dns3.nextron.ch | ||||||
| A | 31.171.251.198🇨🇭 CLOUDSIGMA-AS31.171.251.0/24 CloudSigma | ||||||
| PTR | dns3.nextron.ch | ||||||
| MX | antispam.nextron.ch ⭐ | ||||||
| A | 193.108.137.9🇨🇭 AS-TINEO193.108.136.0/23 Nextron | ||||||
| PTR | antispam.nextron.ch | ||||||
| TXT | v=spf1 include:spf.nextron.ch -all | ||||||
| SOA | dns.nextron.chhostmaster@nextron.ch 2026-07-26 #12 | ||||||
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 #13 | ||||||
Same first word
Similar names
DNS History
10 records (4 active, 6 former)
●NSdns.nextron.ch2026-05-05 → 2026-07-30 · 3 obs
● 2026-05-05 14:24:40
● 2026-07-30 05:08:26
●NSdns2.nextron.ch2026-05-05 → 2026-07-30 · 3 obs
● 2026-05-05 14:24:40
● 2026-07-30 05:08:26
●NSdns3.nextron.ch2026-05-05 → 2026-07-30 · 3 obs
● 2026-05-05 14:24:40
● 2026-07-30 05:08:26
○NSns1.webland.ch2015-07-09 → 2026-03-09 · 4 obs
● 2026-03-09 12:21:56
○ 2026-05-05 14:24:40
○ 2026-07-30 05:08:26
○NSns2.webland.ch2015-07-09 → 2026-03-09 · 4 obs
● 2026-03-09 12:21:56
○ 2026-05-05 14:24:40
○ 2026-07-30 05:08:26
○NSns3.webland.ch2026-03-09 → 2026-03-09 · 4 obs
● 2026-03-09 12:21:56
○ 2026-05-05 14:24:40
○ 2026-07-30 05:08:26
○NSns4.webland.ch2026-03-09 → 2026-03-09 · 4 obs
● 2026-03-09 12:21:56
○ 2026-05-05 14:24:40
○ 2026-07-30 05:08:26
●MXantispam.nextron.ch2026-05-05 → 2026-07-30 · 3 obs
● 2026-05-05 14:24:40
● 2026-07-30 05:08:26
○MXmail.contcom.ch2015-07-09 → 2026-03-09 · 4 obs
● 2026-03-09 12:21:56
○ 2026-05-05 14:24:40
○ 2026-07-30 05:08:26
○A92.43.216.1082015-07-09 → 2026-03-09 · 4 obs
● 2026-03-09 12:21:56
○ 2026-05-05 14:24:40
○ 2026-07-30 05:08:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| contcom.ch | dns2.nextron.ch, dns.nextron.ch, dns3.nextron.ch | 3 records |
✅ Authoritative Response
Server:193.108.137.3
NS records: dns2.nextron.ch, dns.nextron.ch, dns3.nextron.ch
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for contcom.ch (unsigned zone)
⏱️ Timing
Total: 471ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | dns.nextron.ch, dns2.nextron.ch... |
| MX | 1 | antispam.nextron.ch (pri: 5) |
| TXT | 1 | v=spf1 include:spf.nextron.ch -all |
| SOA | 1 | dns.nextron.ch hostmaster.nextron.ch |
📌 Glue Records Collected
Total: 3
Out-of-bailiwick: 3 (dns3.nextron.ch, dns2.nextron.ch, dns.nextron.ch)
Analysis
Name Servers
contcom.ch is delegated to three name servers: dns2.nextron.ch, dns3.nextron.ch and dns.nextron.ch.
contcom.ch partially shares its NS delegation with several other domains, including proaurum.com, vipskaderberatung.ch, cetoday.ch and two others.
These name servers regularly co-occur with the name servers ns1.help.ch, ns2.help.ch and ns3.help.ch.
dns2.nextron.ch, dns3.nextron.ch and dns.nextron.ch each resolve to a single IP address: dns2.nextron.ch resolves to 193.108.137.3, dns3.nextron.ch resolves to 31.171.251.198 and dns.nextron.ch resolves to 193.108.137.2.
Mail Servers
contcom.ch has one mail server: antispam.nextron.ch.
contcom.ch shares the same mail server setup as other domains, including puls.ch, sc-rodersdorf.ch, bichcon.com and two others.
contcom.ch shares mail servers — at least in part — with other domains, including eurofima-safe.ch, schild.ch, goodwork.ch and two others.
antispam.nextron.ch resolves to a single IP number: 193.108.137.9.