ctst.com - robtex.com
ctst.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | pdns82.ultradns.biz ⚠️ Not in zone NS records | ||||||
| A | 2610:a1:1015::76🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns82.ultradns.biz | ||||||
| A | 156.154.66.82🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns82.ultradns.biz | ||||||
| NS | pdns82.ultradns.com ⚠️ Not in zone NS records | ||||||
| A | 2001:502:f3ff::76🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns82.ultradns.com | ||||||
| A | 156.154.64.82🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns82.ultradns.com | ||||||
| NS | pdns82.ultradns.net ⚠️ Not in zone NS records | ||||||
| A | 2610:a1:1014::76🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns82.ultradns.net | ||||||
| A | 156.154.65.82🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns82.ultradns.net | ||||||
| NS | pdns82.ultradns.org ⚠️ Not in zone NS records | ||||||
| A | 2001:502:4612::76🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns82.ultradns.org | ||||||
| A | 156.154.67.82🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns82.ultradns.org | ||||||
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=1784336502 | ||||||
Same first word
Similar names
DNS History
7 records (4 active, 3 former)
○NSns1.ctst.com2015-08-23 → 2017-01-20 · 4 obs
● 2017-01-20 07:07:58
○ 2026-07-14 23:46:20
○ 2026-07-18 01:25:58
●NSpdns82.ultradns.biz2015-08-23 → 2026-07-18 · 2 obs
● 2026-07-18 01:25:58
●NSpdns82.ultradns.com2015-08-23 → 2026-07-18 · 2 obs
● 2026-07-18 01:25:58
●NSpdns82.ultradns.net2015-08-23 → 2026-07-18 · 2 obs
● 2026-07-18 01:25:58
●NSpdns82.ultradns.org2015-08-23 → 2026-07-18 · 2 obs
● 2026-07-18 01:25:58
○MXmx1.sherweb2010.com2015-08-23 → 2017-01-20 · 4 obs
● 2017-01-20 07:07:58
○ 2026-07-14 23:46:20
○ 2026-07-18 01:25:58
○MXmx2.sherweb2010.com2015-08-23 → 2017-01-20 · 4 obs
● 2017-01-20 07:07:58
○ 2026-07-14 23:46:20
○ 2026-07-18 01:25:58
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net... | - |
| ctst.com | pdns82.ultradns.net, pdns82.ultradns.com, pdns82.ultradns.biz, pdns82.ultradns.org | 2 records |
✅ Authoritative Response
Server:156.154.67.82
NS records: pdns82.ultradns.net, pdns82.ultradns.com, pdns82.ultradns.biz, pdns82.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ctst.com (unsigned zone)
⏱️ Timing
Total: 373ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (pdns82.ultradns.com, pdns82.ultradns.com)
Analysis
Name Servers
ctst.com has four authoritative name servers: pdns82.ultradns.biz, pdns82.ultradns.com, pdns82.ultradns.net and pdns82.ultradns.org.
At least some of ctst.com's name servers are shared with other domains, for example omnicommediagroup.mobi, drum.co.uk, bigloveinstallation.com and two more.
Four hostnames, each resolving to a pair of IP addresses: pdns82.ultradns.biz directs to 156.154.66.82 and 2610:a1:1015::76; pdns82.ultradns.com directs to 156.154.64.82 and 2001:502:f3ff::76; pdns82.ultradns.net directs to 156.154.65.82 and 2610:a1:1014::76; pdns82.ultradns.org directs to 156.154.67.82 and 2001:502:4612::76.