4kern.ch - robtex.com
4kern.ch
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 213.239.221.71🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | designerlb.hr1.hoststar.ch | ||||||
| NS | ns1.hoststar.hosting ⭐ | ||||||
| A | 88.99.214.141🇩🇪 Hetzner88.99.0.0/16 HETZNER-DC | ||||||
| PTR | ns1.hoststar.hosting | ||||||
| NS | ns2.hoststar.hosting | ||||||
| A | 185.48.228.80🇨🇭 netcup-AS185.48.228.0/22 NETCUP-GMBH | ||||||
| PTR | ns2.hoststar.hosting | ||||||
| MX | mail.4kern.ch ⭐ | ||||||
| A | 116.202.46.42🇩🇪 Hetzner116.202.0.0/16 HETZNER-DC | ||||||
| PTR | lx67.hoststar.hosting | ||||||
| TXT | v=spf1 a:4kern.ch mx ~all | ||||||
| SOA | ns1.hoststar.hostinghostmaster@4kern.ch 2026-07-30 #1 | ||||||
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 #46 | ||||||
Subdomains
mail.4kern.ch |
Same first word
4kern.ch |
Similar names
DNS History
7 records (4 active, 3 former)
●NSns1.hoststar.hosting2026-07-02 → 2026-08-05 · 3 obs
● 2026-07-02 09:39:04
● 2026-08-05 22:10:10
●NSns2.hoststar.hosting2026-07-02 → 2026-08-05 · 3 obs
● 2026-07-02 09:39:04
● 2026-08-05 22:10:10
○NSns51.hoststar.ch2015-08-12 → 2018-09-15 · 4 obs
● 2018-09-15 10:03:50
○ 2026-07-02 09:39:04
○ 2026-08-05 22:10:10
○NSns52.hoststar.ch2015-08-12 → 2018-09-15 · 4 obs
● 2018-09-15 10:03:50
○ 2026-07-02 09:39:04
○ 2026-08-05 22:10:10
●MXmail.4kern.ch2015-08-12 → 2026-08-05 · 2 obs
● 2026-08-05 22:10:10
●A213.239.221.712026-07-02 → 2026-08-05 · 3 obs
● 2026-07-02 09:39:04
● 2026-08-05 22:10:10
○A85.10.194.1562015-08-12 → 2018-09-15 · 4 obs
● 2018-09-15 10:03:50
○ 2026-07-02 09:39:04
○ 2026-08-05 22:10:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| 4kern.ch | ns2.hoststar.hosting, ns1.hoststar.hosting | - |
✅ Authoritative Response
Server:88.99.214.141
NS records: ns2.hoststar.hosting, ns1.hoststar.hosting
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 850ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 213.239.221.71 |
| NS | 2 | ns2.hoststar.hosting, ns1.hoststar.hosting |
| MX | 1 | mail.4kern.ch (pri: 10) |
| TXT | 1 | v=spf1 a:4kern.ch mx ~all |
| SOA | 1 | ns1.hoststar.hosting hostmaster.4kern.ch |
Analysis
Hierarchy
4kern.ch serves as the parent of mail.4kern.ch.
IP Addresses
4kern.ch resolves to one IP address: 213.239.221.71.
mail.nrw.philseens.ch, engtec.ch, ing-ps.ch and two other host names share IP numbers with 4kern.ch.
Name Servers
Two name servers handle the delegation for 4kern.ch: ns1.hoststar.hosting and ns2.hoststar.hosting.
4kern.ch uses the same name servers as several other domains — among them colorfulweddings.com, claudialaube.ch, ccash.ch and two more.
4kern.ch has at least partial name server overlap with other domains, such as picchio-art.com, mrc-wattens.at, roewa.ch and two others.
ns1.hoststar.hosting directs to 88.99.214.141 and ns2.hoststar.hosting directs to 185.48.228.80; each host name points to exactly one IP number.
Mail Servers
Mail for 4kern.ch is handled by a single mail server, mail.4kern.ch.
mail.4kern.ch carries a single IP number, which is 116.202.46.42.