pdf2book.ch - robtex.com
pdf2book.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 2026-04-04 #8 | ||||||
Subdomains
www.pdf2book.ch |
Same first word
DNS History
6 records (4 active, 2 former)
●NSns1.first-ns.de2015-07-05 → 2026-04-04 · 2 obs
● 2026-04-04 02:26:48
●NSrobotns2.second-ns.de2015-07-05 → 2026-04-04 · 2 obs
● 2026-04-04 02:26:48
●NSrobotns3.second-ns.com2015-07-05 → 2026-04-04 · 2 obs
● 2026-04-04 02:26:48
○MXmail.pdf2book.ch2015-07-05 → 2017-04-03 · 4 obs
● 2017-04-03 00:29:56
○ 2026-03-09 01:37:42
○ 2026-04-04 02:26:48
●A116.203.14.1082026-03-09 → 2026-04-04 · 3 obs
● 2026-03-09 01:37:42
● 2026-04-04 02:26:48
○A213.133.127.2072015-07-05 → 2017-04-03 · 4 obs
● 2017-04-03 00:29:56
○ 2026-03-09 01:37:42
○ 2026-04-04 02:26:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ch | e.nic.ch, b.nic.ch, d.nic.ch, a.nic.ch... | - |
| pdf2book.ch | robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de | - |
✅ Authoritative Response
Server:193.47.99.3
NS records: robotns3.second-ns.com, ns1.first-ns.de, robotns2.second-ns.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for pdf2book.ch (unsigned zone)
⏱️ Timing
Total: 727ms | 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
pdf2book.ch is the parent of www.pdf2book.ch.
IP Addresses
pdf2book.ch points to IP number 116.203.14.108.
Other host names include mail.pdftobook.ch, www.pdf2book.ch, pdftobook.ch and vhost.vm.bubu.ch that share IP numbers with pdf2book.ch.
Name Servers
The delegation for pdf2book.ch is handled by three name servers: robotns3.second-ns.com, ns1.first-ns.de and robotns2.second-ns.de.
pdf2book.ch shares name servers with other domains at least partially, for example sipgatestatus.de, allaboutapps.at, vip-it-service.net, blablubb.net and en-tz.de.
These name servers are commonly used with oxygen.ns.hetzner.com, hydrogen.ns.hetzner.com and helium.ns.hetzner.de.
Host names with two IPs:
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