a.ns.coldbrook.com - robtex.com
a.ns.coldbrook.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 172.254.135.186🇺🇸 RR-NYC172.254.0.0/16 RR-Route | ||||||
| PTR | syn-172-254-135-186.biz.spectrum.com | ||||||
ns.coldbrook.com
| DNSSEC | ⚠️ Not signed | ||||||
NS for
Same first word
Similar names
DNS History
1 record (1 active, 0 former)
●A172.254.135.1862026-02-19 → 2026-04-01 · 2 obs
● 2026-02-19 00:24:34
● 2026-04-01 01:15:12
● 2026-04-01 01:15:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, j.gtld-servers.net, i.gtld-servers.net, b.gtld-servers.net... | - |
| coldbrook.com | a.ns.dotmed.com, c.ns.dotmed.com | 2 records |
✅ Authoritative Response
Server:64.94.160.2
NS records: a.ns.dotmed.com, c.ns.dotmed.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for coldbrook.com (unsigned zone)
⏱️ Timing
Total: 116ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 172.254.135.186 |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (a.ns.dotmed.com, c.ns.dotmed.com)
Analysis
Name Server Role
For coldbrook.com, a.ns.coldbrook.com is used as a name server.
c.ns.coldbrook.com, a.ns.dotmed.com and c.ns.dotmed.com are commonly used as name servers together with a.ns.coldbrook.com.
IP Addresses
a.ns.coldbrook.com points to a single IP number: 172.254.135.186.
other host names for instance a.ns.universalhealing.com, a.ns.dotmed.com, a.ns.astrodance.com, syn-172-254-135-186.biz.spectrum.com and a.ns.jerseymedicaltech.com share IP numbers with a.ns.coldbrook.com.