expobook.com - robtex.com
expobook.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 205.235.95.50🇺🇸 IMDC205.235.92.0/22 One Federal Street Boston MA 02111 United States | ||||||
| NS | udns1.ultradns.net ⭐ | ||||||
| A | 2001:502:f3ff::d🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | udns1.ultradns.net | ||||||
| A | 204.69.234.1🇺🇸 MAINT-ID-12008204.69.234.0/24 Neustar | ||||||
| PTR | udns1.ultradns.net | ||||||
| NS | udns2.ultradns.net | ||||||
| A | 2610:a1:1014::d🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | udns2.ultradns.net | ||||||
| A | 204.74.101.1🇺🇸 MAINT-ID-12008204.74.101.0/24 Neustar | ||||||
| PTR | udns2.ultradns.net | ||||||
| TXT | fefc52a4f65f4c8da4f3526c0c7ff75e | ||||||
| SOA | udns1.ultradns.netralstondt@expovision.com 2012-11-10 #58 | ||||||
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
attendeemx.expobook.com |
www.expobook.com |
Same first word
Similar names
DNS History
4 records (3 active, 1 former)
●NSudns1.ultradns.net2015-06-24 → 2026-03-23 · 2 obs
● 2026-03-23 13:53:00
●NSudns2.ultradns.net2015-06-24 → 2026-03-23 · 2 obs
● 2026-03-23 13:53:00
○A204.197.209.2012015-06-24 → 2017-03-23 · 4 obs
● 2017-03-23 05:17:14
○ 2026-02-14 19:08:08
○ 2026-03-23 13:53:00
●A205.235.95.502026-02-14 → 2026-03-23 · 3 obs
● 2026-02-14 19:08:08
● 2026-03-23 13:53:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| expobook.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 expobook.com (unsigned zone)
⏱️ Timing
Total: 167ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 205.235.95.50 |
| NS | 2 | udns1.ultradns.net, udns2.ultradns.net |
| TXT | 1 | fefc52a4f65f4c8da4f3526c0c7ff75e |
| SOA | 1 | udns1.ultradns.net ralstondt.expovision. |
Analysis
Hierarchy
expobook.com is a parent of attendeemx.expobook.com and www.expobook.com.
IP Addresses
expobook.com resolves to one IP number: 205.235.95.50.
Name Servers
expobook.com is delegated to two name servers udns1.ultradns.net and udns2.ultradns.net.
expobook.com shares the same name server setup as other domains, for instance gentium.it, freedmandistributors.com, golaunchpoint.com, thecheckdown.com and togetherwemakefootball.com.
expobook.com at least partially shares name servers with other domains, for instance casinopartners.com, gendigitallibrary.com, officedepotracing.org, asia.com and first-advantage.com.
these name servers are commonly used with the name servers pdns5.ultradns.info, pdns1.ultradns.net, pdns2.ultradns.net, pdns3.ultradns.org, pdns4.ultradns.org, pdns6.ultradns.co.uk, ns1.dealer.com and ns2.dealer.com.
Host names with two IP numbers:
The host name udns1.ultradns.net points to 2001:502:f3ff::d and 204.69.234.1; the host name udns2.ultradns.net points to 2610:a1:1014::d and 204.74.101.1.