pdftobook.ch - robtex.com
pdftobook.ch
| DNSSEC | ⚠️ Not signed | ||||||
| A | 116.203.14.108🇩🇪 Hetzner116.203.0.0/16 HETZNER-DC | ||||||
| PTR | vhost.vm.bubu.ch | ||||||
| NS | ns1.first-ns.de ⭐ | ||||||
| A | 2a01:4f8:0:a101::a:1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | ns1.first-ns.de | ||||||
| A | 213.239.242.238🇩🇪 Hetzner213.239.192.0/18 HETZNER-RZ-NBG-BLK2 | ||||||
| PTR | ns1.first-ns.de | ||||||
| NS | robotns2.second-ns.de | ||||||
| A | 2a01:4f8:0:1::5ddc:2🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| PTR | robotns2.second-ns.de | ||||||
| A | 213.133.100.103🇩🇪 Hetzner213.133.96.0/19 HETZNER-RZ-NBG-BLK1 | ||||||
| PTR | robotns2.second-ns.de | ||||||
| NS | robotns3.second-ns.com | ||||||
| A | 2001:67c:192c::add:a3🇩🇪 NORIS-NETWORK2001:67c:192c::/48 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| A | 193.47.99.3🇩🇪 NORIS-NETWORK193.47.99.0/24 | ||||||
| PTR | robotns3.second-ns.com | ||||||
| SOA | ns1.first-ns.dedns@hetzner.com 2025-11-17 #0 | ||||||
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 2026-04-03 #47 | ||||||
Subdomains
mail.pdftobook.ch |
Same first word
pdftobook.ch |
Similar names
DNS History
6 records (4 active, 2 former)
●NSns1.first-ns.de2015-07-12 → 2026-04-03 · 2 obs
● 2026-04-03 22:10:56
●NSrobotns2.second-ns.de2015-07-12 → 2026-04-03 · 2 obs
● 2026-04-03 22:10:56
●NSrobotns3.second-ns.com2015-07-12 → 2026-04-03 · 2 obs
● 2026-04-03 22:10:56
○MXmail.pdftobook.ch2015-07-12 → 2017-04-09 · 4 obs
● 2017-04-09 10:10:56
○ 2026-02-25 10:33:38
○ 2026-04-03 22:10:56
●A116.203.14.1082026-02-25 → 2026-04-03 · 3 obs
● 2026-02-25 10:33:38
● 2026-04-03 22:10:56
○A213.133.127.2072015-07-12 → 2017-04-09 · 4 obs
● 2017-04-09 10:10:56
○ 2026-02-25 10:33:38
○ 2026-04-03 22:10:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | a.nic.ch, b.nic.ch, d.nic.ch, e.nic.ch... | - |
| pdftobook.ch | ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com | - |
✅ Authoritative Response
Server:213.239.242.238
NS records: ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for pdftobook.ch (unsigned zone)
⏱️ Timing
Total: 1041ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 116.203.14.108 |
| NS | 3 | robotns3.second-ns.com, ns1.first-ns.de... |
| SOA | 1 | ns1.first-ns.de dns.hetzner.com |
Analysis
Hierarchy
pdftobook.ch is the parent of mail.pdftobook.ch.
IP Addresses
pdftobook.ch resolves to a single IP address: 116.203.14.108.
Other host names such as mail.pdftobook.ch, www.pdf2book.ch, vhost.vm.bubu.ch and pdf2book.ch share IP numbers with pdftobook.ch.
Name Servers
pdftobook.ch is delegated to three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
pdftobook.ch at least partially shares name servers with other domains, including irczone.dk, data-limes.com, arcadebannerexchange.org, pisil.de and opidoc.info.
these name servers are commonly used together with hydrogen.ns.hetzner.com, oxygen.ns.hetzner.com and helium.ns.hetzner.de.
Host names with two IP numbers:
robotns3.second-ns.com points to: 2001:67c:192c::add:a3 and 193.47.99.3
ns1.first-ns.de points to: 2a01:4f8:0:a101::a:1 and 213.239.242.238
robotns2.second-ns.de points to: 2a01:4f8:0:1::5ddc:2 and 213.133.100.103