isourcebook.com - robtex.com
isourcebook.com
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=1775020912 | ||||||
PTR for
Same first word
isourcebook.com |
DNS History
11 records (9 active, 2 former)
●NSa1-49.akam.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
●NSa13-64.akam.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
●NSa14-65.akam.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
●NSdns1.p01.nsone.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
●NSdns2.p01.nsone.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
●NSdns3.p01.nsone.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
○NSns1.cengage.net2015-07-20 → 2016-10-25 · 4 obs
● 2016-10-25 15:01:58
○ 2026-02-16 09:36:58
○ 2026-04-01 05:48:50
●NSns1x.cengage.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
○NSns2.cengage.net2015-07-20 → 2016-10-25 · 4 obs
● 2016-10-25 15:01:58
○ 2026-02-16 09:36:58
○ 2026-04-01 05:48:50
●NSns2x.cengage.net2026-02-16 → 2026-04-01 · 3 obs
● 2026-02-16 09:36:58
● 2026-04-01 05:48:50
●A69.32.142.1092015-07-20 → 2026-04-01 · 2 obs
● 2026-04-01 05:48:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, k.gtld-servers.net... | - |
| isourcebook.com | dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, a13-64.akam.net... | - |
✅ Authoritative Response
Server:2.22.230.64
NS records: dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, a13-64.akam.net, a14-65.akam.net, a1-49.akam.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for isourcebook.com (unsigned zone)
⏱️ Timing
Total: 598ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 69.32.142.109 |
| NS | 2 | ns1x.cengage.net, ns2x.cengage.net |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1x.cengage.net hostmaster.ohcinmason.c |
Analysis
IP Addresses
isourcebook.com points to a single IP address: 69.32.142.109.
Other host names such as new.coursecbt.com, coursecbt.com, coursecengage.com, new.scseries.com and www.shellycashman.com share IP numbers with isourcebook.com.
Name Servers
isourcebook.com delegates to eight name servers: a1-49.akam.net, a13-64.akam.net, a14-65.akam.net, ns1x.cengage.net, ns2x.cengage.net, dns1.p01.nsone.net, dns2.p01.nsone.net and dns3.p01.nsone.net.
At least part of the name servers for isourcebook.com are shared with other domains, for instance babifacioli.com, vicryl.be, cashofferstoday.net, cadumartins.com and worldcourier.fi.
these name servers are commonly used with the name servers dns4.p01.nsone.net, ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com, ns01.jnjdns.com, ns02.jnjdns.com, ns03.jnjdns.com, ns04.jnjdns.com and a13-67.akam.net.
Host names with two IP numbers:
a1-49.akam.net points to 2600:1401:2::31 and 193.108.91.49; a13-64.akam.net points to 2600:1480:800::40 and 2.22.230.64; a14-65.akam.net points to 2600:1480:1800::41 and 184.26.161.65; dns1.p01.nsone.net points to 2620:4d:4000:6259:7:1:0:1 and 198.51.44.1; dns2.p01.nsone.net points to 2a00:edc0:6259:7:1::2 and 198.51.45.1; dns3.p01.nsone.net points to 2620:4d:4000:6259:7:1:0:3 and 198.51.44.65.
Host names with one IP number:
ns1x.cengage.net points to 69.32.130.251; ns2x.cengage.net points to 69.32.224.38.