biggestbook.com - robtex.com
biggestbook.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=1771291435 | ||||||
rank #330158 in the tld
Subdomains
www.biggestbook.com |
Same first word
biggestbook.com |
DNS History
11 records (8 active, 3 former)
●NSns0.unitedstationers.net2015-08-23 → 2026-03-12 · 2 obs
● 2026-03-12 16:36:40
●NSns1.unitedstationers.net2015-08-23 → 2026-03-12 · 2 obs
● 2026-03-12 16:36:40
●NSns2.unitedstationers.net2015-08-23 → 2026-03-12 · 2 obs
● 2026-03-12 16:36:40
●NSns3.unitedstationers.net2015-08-23 → 2026-03-12 · 2 obs
● 2026-03-12 16:36:40
●NSns4.unitedstationers.net2015-08-23 → 2026-03-12 · 2 obs
● 2026-03-12 16:36:40
●MXmx1.essendant.com2016-07-29 → 2026-03-12 · 3 obs
● 2016-07-29 17:20:22
● 2026-03-12 16:36:40
○MXmx1.ussco.com2015-08-23 → 2016-04-28 · 4 obs
● 2016-04-28 08:37:32
○ 2016-07-29 17:20:22
○ 2026-03-12 16:36:40
●MXmx2.essendant.com2016-07-29 → 2026-03-12 · 3 obs
● 2016-07-29 17:20:22
● 2026-03-12 16:36:40
○MXmx2.ussco.com2015-08-23 → 2016-04-28 · 4 obs
● 2016-04-28 08:37:32
○ 2016-07-29 17:20:22
○ 2026-03-12 16:36:40
●A74.115.189.512016-02-19 → 2026-03-12 · 3 obs
● 2016-02-19 02:35:50
● 2026-03-12 16:36:40
○A74.115.189.792015-08-23 → 2015-12-10 · 4 obs
● 2015-12-10 03:38:40
○ 2016-02-19 02:35:50
○ 2026-03-12 16:36:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, k.gtld-servers.net, g.gtld-servers.net, e.gtld-servers.net... | - |
| biggestbook.com | ns1.unitedstationers.net, ns2.unitedstationers.net, ns3.unitedstationers.net, ns4.unitedstationers.net | - |
✅ Authoritative Response
Server: 208.80.125.4
NS records: ns1.unitedstationers.net, ns2.unitedstationers.net, ns3.unitedstationers.net, ns4.unitedstationers.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for biggestbook.com (unsigned zone)
⏱️ Timing
Total: 421ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 74.115.189.51 |
| NS | 4 | ns4.unitedstationers.net, ns2.unitedstationers.net... |
| MX | 2 | mx2.essendant.com (pri: 10), mx1.essendant.com (pri: 10) |
| TXT | 3 | MS=ms45927862, v=spf1 include:essendant.com -all... |
| SOA | 1 | ns0.unitedstationers.net infosec.ussco.c |
Analysis
Hierarchy
biggestbook.com is the parent of www.biggestbook.com.
IP Addresses
biggestbook.com resolves to one IP number: 74.115.189.51.
Other host names, for instance www.biggestbook.com, share IP numbers with biggestbook.com.
Name Servers
biggestbook.com is delegated to five name servers: ns0.unitedstationers.net, ns1.unitedstationers.net, ns2.unitedstationers.net, ns3.unitedstationers.net and ns4.unitedstationers.net.
biggestbook.com at least partially shares name servers with other domains, for instance 191.115.74.in-addr.arpa, usscostage.com, ussco.com, azerty.com and oppictures.com.
Host names with a single IP address: The host name ns0.unitedstationers.net points to 208.94.148.4. The host name ns1.unitedstationers.net points to 208.94.148.4. The host name ns2.unitedstationers.net points to 208.80.124.4. The host name ns3.unitedstationers.net points to 208.80.126.4. The host name ns4.unitedstationers.net points to 208.80.125.4. Host names that point to 208.94.148.4: ns0.unitedstationers.net and ns1.unitedstationers.net.
Mail Servers
Two mail servers handle biggestbook.com: mx1.essendant.com and mx2.essendant.com.
biggestbook.com shares the same mail server setup as other domains, for instance usscostage.com, ussco.com, azerty.com, cpocommerce.com and essendant.com.
Host names with one IP number:
mx1.essendant.com points to 208.84.65.60
mx2.essendant.com points to 208.86.201.53