gubookstore.com - robtex.com
gubookstore.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=1774420272 | ||||||
PTR for
Subdomains
www.gubookstore.com |
Same first word
gubookstore.com |
DNS History
10 records (10 active, 0 former)
●NSdns-external-master.amazon.com2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSpdns1.ultradns.net2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSpdns2.ultradns.net2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSpdns3.ultradns.org2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSpdns4.ultradns.org2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSpdns5.ultradns.info2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSpdns6.ultradns.co.uk2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSudns1.ultradns.net2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●NSudns2.ultradns.net2026-03-25 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
●MXmail1.booksurge.com2015-06-06 → 2026-03-25 · 2 obs
● 2026-03-25 06:35:10
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | j.gtld-servers.net, l.gtld-servers.net, e.gtld-servers.net, d.gtld-servers.net... | - |
| gubookstore.com | udns1.ultradns.net, udns2.ultradns.net | - |
✅ Authoritative Response
Server:204.69.234.1
NS records: udns1.ultradns.net, udns2.ultradns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for gubookstore.com (unsigned zone)
⏱️ Timing
Total: 441ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 6 | pdns1.ultradns.net, pdns2.ultradns.net... |
| MX | 1 | mail1.booksurge.com (pri: 10) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | dns-external-master.amazon.com root.amaz |
Analysis
Hierarchy
gubookstore.com is the parent of www.gubookstore.com.
Name Servers
gubookstore.com is delegated to nine name servers: dns-external-master.amazon.com, pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net, udns1.ultradns.net, udns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org and pdns6.ultradns.co.uk.
gubookstore.com at least partially shares name servers with other domains, including airlinebookers.net, hotels-montreal.com, wikgame.com, 186.221.216.in-addr.arpa and maeve.com.
These name servers are typically used together with the name servers ns1.amzndns.com, ns2.amzndns.com, ns1.amzndns.net, ns2.amzndns.net, ns1.amzndns.org, ns2.amzndns.org, ns1.amzndns.co.uk, ns2.amzndns.co.uk, x1.amazonaws.com and x2.amazonaws.com.
Hostnames with two IP numbers:
pdns5.ultradns.info points to 2610:a1:1016::1 and 204.74.114.1
pdns1.ultradns.net points to 2001:502:f3ff::1 and 204.74.108.1
pdns2.ultradns.net points to 2610:a1:1014::1 and 204.74.109.1
udns1.ultradns.net points to 2001:502:f3ff::d and 204.69.234.1
udns2.ultradns.net points to 2610:a1:1014::d and 204.74.101.1
pdns3.ultradns.org points to 2610:a1:1015::1 and 199.7.68.1
pdns4.ultradns.org points to 2001:502:4612::1 and 199.7.69.1
pdns6.ultradns.co.uk points to 2610:a1:1017::1 and 204.74.115.1
Hostnames with one IP number:
dns-external-master.amazon.com points to 204.74.108.1
Hostnames that point to 204.74.108.1:
pdns1.ultradns.net and dns-external-master.amazon.com
Mail Servers
gubookstore.com is handled by a single mail server, mail1.booksurge.com.
mail1.booksurge.com points to a single IP: 3.33.139.32.