davidbu.ch - robtex.com
davidbu.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 2026-03-30 #20 | ||||||
PTR for
Same first word
Similar names
DNS History
10 records (9 active, 1 former)
●NSns1.linode.com2015-08-10 → 2026-03-30 · 2 obs
● 2026-03-30 08:25:22
●NSns2.linode.com2015-08-10 → 2026-03-30 · 2 obs
● 2026-03-30 08:25:22
●NSns3.linode.com2015-08-10 → 2026-03-30 · 2 obs
● 2026-03-30 08:25:22
●NSns4.linode.com2015-08-10 → 2026-03-30 · 2 obs
● 2026-03-30 08:25:22
●NSns5.linode.com2015-08-10 → 2026-03-30 · 2 obs
● 2026-03-30 08:25:22
●MXmxext1.mailbox.org2015-08-10 → 2026-03-30 · 2 obs
● 2026-03-30 08:25:22
●MXmxext2.mailbox.org2015-08-10 → 2026-03-30 · 2 obs
● 2026-03-30 08:25:22
●A185.3.94.92026-03-13 → 2026-03-30 · 3 obs
● 2026-03-13 20:41:28
● 2026-03-30 08:25:22
○A207.192.73.132015-08-10 → 2017-03-28 · 4 obs
● 2017-03-28 04:24:36
○ 2026-03-13 20:41:28
○ 2026-03-30 08:25:22
●A2a01:7e00::f03c:91ff:fe98:1fec2026-03-13 → 2026-03-30 · 3 obs
● 2026-03-13 20:41:28
● 2026-03-30 08:25:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| davidbu.ch | ns2.linode.com, ns3.linode.com, ns4.linode.com, ns1.linode.com | - |
✅ Authoritative Response
Server:92.123.94.3
NS records: ns2.linode.com, ns3.linode.com, ns4.linode.com, ns1.linode.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for davidbu.ch (unsigned zone)
⏱️ Timing
Total: 824ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 185.3.94.9 |
| AAAA | 1 | 2a01:7e00::f03c:91ff:fe98:1fec |
| NS | 5 | ns1.linode.com, ns5.linode.com... |
| MX | 3 | mxext2.mailbox.org (pri: 10), mxext1.mailbox.org (pri: 10)... |
| TXT | 1 | v=spf1 include:mailbox.org ~all |
| SOA | 1 | ns1.linode.com mail.davidbu.ch |
Analysis
IP Addresses
davidbu.ch resolves to two IP numbers: 2a01:7e00::f03c:91ff:fe98:1fec and 185.3.94.9.
Other host names such as christine-scheidegger.ch and strategiespiele-bern.ch share IP numbers with davidbu.ch.
Name Servers
davidbu.ch is delegated to five name servers: ns1.linode.com, ns2.linode.com, ns3.linode.com, ns4.linode.com and ns5.linode.com.
davidbu.ch at least partially shares name servers with other domains, for instance smartpark.gr, spotter360.com, orangeaudio.hr, printablescience.com and udemus.com.
Host names with two IP numbers:
ns1.linode.com points to 2600:14c0:6::2 and 92.123.94.2
ns2.linode.com points to 2600:14c0:6::3 and 92.123.94.3
ns3.linode.com points to 2600:14c0:7::3 and 92.123.95.3
ns4.linode.com points to 2600:14c0:7::4 and 92.123.95.4
ns5.linode.com points to 2600:14c0:7::2 and 92.123.95.2
Mail Servers
Two mail servers handle davidbu.ch: mxext1.mailbox.org and mxext2.mailbox.org.
davidbu.ch shares the same mail server setup as other domains, for instance bastelsuse.org, kingofrock.de, nithb.de, heinzner.com and koteku.com.
davidbu.ch shares some mail servers with other domains, at least partially, for instance dbb-saar.de, skytekk.com, j-mb.ch, premper.de and gotools.de.
these mail servers are commonly used with the mail servers mxext3.mailbox.org.
Host names with two IP numbers:
The host name mxext1.mailbox.org points to 2001:67c:2050:104:0:1:25:1 and 80.241.60.212; the host name mxext2.mailbox.org points to 2001:67c:2050:104:0:2:25:1 and 80.241.60.215.