51readbook.com - robtex.com
51readbook.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 108.186.50.79🇺🇸 PEGTECHINC108.186.0.0/16 PEG TECH Inc. 11565 Old Ranch Ln Los Altos, CA 94024 US | ||||||
| NS | ns1.domainnamedns.com ⭐ | ||||||
| A | 2a0e:df80:a:1::a5b🇺🇸 VMISS2a0e:df80:a::/48 | ||||||
| A | 38.165.22.197🇺🇸 VMISS38.165.22.0/24 Customer Route | ||||||
| NS | ns2.domainnamedns.com | ||||||
| A | 2604:86c0:2001:6::2672:72b7🇺🇸 AS630232604:86c0:2000::/36 GTHOST-LAX | ||||||
| A | 38.114.114.183🇨🇦 AS6302338.114.114.0/24 Route Registered for Cogent Communications Customer GLOBALTELEHOST CORP. | ||||||
| PTR | 183-114-114-38.clients.gthost.com | ||||||
| NS | ns3.domainnamedns.com ⚠️ Not in parent delegation | ||||||
| A | 2406:da18:e80:ec00:7b68:89e5:1ce1:c481🇸🇬 Amazon2406:da18:c00::/38 AWS | ||||||
| A | 54.151.142.119🇸🇬 Amazon54.151.128.0/17 SIN prefix | ||||||
| PTR | ec2-54-151-142-119.ap-southeast-1.compute.amazonaws.com | ||||||
| NS | ns4.domainnamedns.com ⚠️ Not in parent delegation | ||||||
| A | 2604:86c0:2001:c::43dc:4833🇺🇸 AS630232604:86c0:2000::/36 GTHOST-LAX | ||||||
| A | 67.220.72.51🇺🇸 AS6302367.220.72.0/24 GTHOST | ||||||
| PTR | 51-72-220-67.clients.gthost.com | ||||||
| SOA | ns1.domainnamedns.comsupport@namens.net serial=1773666233 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1771291435 | ||||||
Subdomains
www.51readbook.com |
Same first word
51readbook.com |
DNS History
11 records (5 active, 6 former)
○NSdns10.hichina.com2015-11-28 → 2017-03-24 · 3 obs
● 2017-03-24 18:57:10
○ 2026-03-22 20:42:38
○NSdns9.hichina.com2015-11-28 → 2017-03-24 · 3 obs
● 2017-03-24 18:57:10
○ 2026-03-22 20:42:38
●NSns1.domainnamedns.com2026-03-22 → 2026-03-22 · 2 obs
● 2026-03-22 20:42:38
●NSns2.domainnamedns.com2026-03-22 → 2026-03-22 · 2 obs
● 2026-03-22 20:42:38
●NSns3.domainnamedns.com2026-03-22 → 2026-03-22 · 2 obs
● 2026-03-22 20:42:38
●NSns4.domainnamedns.com2026-03-22 → 2026-03-22 · 2 obs
● 2026-03-22 20:42:38
○MXmail.happyisp.com2020-02-17 → 2020-02-17 · 2 obs
○ 2026-03-22 20:42:38
○A103.238.224.312015-11-28 → 2017-03-24 · 4 obs
● 2017-03-24 18:57:10
○ 2020-02-17 12:04:22
○ 2026-03-22 20:42:38
●A108.186.50.792026-03-22 → 2026-03-22 · 2 obs
● 2026-03-22 20:42:38
○A108.186.9.512026-03-22 → 2026-03-22 · 1 obs
○A15.164.83.2062020-02-17 → 2020-02-17 · 3 obs
● 2020-02-17 12:04:22
○ 2026-03-22 20:42:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 51readbook.com | ns1.domainnamedns.com, ns2.domainnamedns.com | 5 records |
✅ Authoritative Response
Server: 38.165.22.197
NS records: ns1.domainnamedns.com, ns2.domainnamedns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51readbook.com (unsigned zone)
⏱️ Timing
Total: 246ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 108.186.50.79 |
| NS | 4 | ns3.domainnamedns.com, ns4.domainnamedns.com... |
| SOA | 1 | ns1.domainnamedns.com support.namens.net |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (ns1.domainnamedns.com, ns1.domainnamedns.com, ns1.domainnamedns.com...)
Analysis
Hierarchy
The parent of www.51readbook.com is 51readbook.com.
IP Addresses
51readbook.com points to a single IP number: 108.186.50.79.
Other host names, for instance bio2china.com, maikebo.com, zjodjx.com, ahlunwen.com and cn-hanhai.com share IP numbers with 51readbook.com.
Name Servers
51readbook.com is delegated to four name servers: ns1.domainnamedns.com, ns2.domainnamedns.com, ns3.domainnamedns.com and ns4.domainnamedns.com.
51readbook.com shares name servers with other domains at least partially, for instance hdpelesso.com, torontoparking.co, hth-hub.com, tcxdzsw.com and pyhfp.com.
Host names with two IP numbers:
ns1.domainnamedns.com resolves to 2a0e:df80:a:1::a5b and 38.165.22.197.
ns2.domainnamedns.com resolves to 2604:86c0:2001:6::2672:72b7 and 38.114.114.183.
ns3.domainnamedns.com resolves to 2406:da18:e80:ec00:7b68:89e5:1ce1:c481 and 54.151.142.119.
ns4.domainnamedns.com resolves to 2604:86c0:2001:c::43dc:4833 and 67.220.72.51.