forbes300.com - robtex.com
forbes300.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | cbru.br.ns.els-gms.att.net ⚠️ Not in zone NS records | ||||||
| A | 2001:1890:1ff:9f0:68:94:156:132🇺🇸 AS70182001:1890::/29 AT&T Enterprises, LLC | ||||||
| PTR | cbru.br.ns.els-gms.att.net | ||||||
| A | 68.94.156.132🇺🇸 AS701868.88.0.0/13 ARIN Allocation SBC Internet Services | ||||||
| PTR | cbru.br.ns.els-gms.att.net | ||||||
| NS | cmtu.mt.ns.els-gms.att.net ⚠️ Not in zone NS records | ||||||
| A | 2001:1890:1ff:9f1:99:99:99:132🇺🇸 AS70182001:1890::/29 AT&T Enterprises, LLC | ||||||
| PTR | cmtu.mt.ns.els-gms.att.net | ||||||
| A | 99.99.99.132🇺🇸 AS701899.96.0.0/13 AT&T Enterprises, LLC | ||||||
| PTR | cmtu.mt.ns.els-gms.att.net | ||||||
| NS | dbru.br.ns.els-gms.att.net ⚠️ Not in zone NS records | ||||||
| A | 2001:1890:1ff:9f0:68:94:156:134🇺🇸 AS70182001:1890::/29 AT&T Enterprises, LLC | ||||||
| PTR | dbru.br.ns.els-gms.att.net | ||||||
| A | 68.94.156.134🇺🇸 AS701868.88.0.0/13 ARIN Allocation SBC Internet Services | ||||||
| PTR | dbru.br.ns.els-gms.att.net | ||||||
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=1774542357 | ||||||
Same first word
forbes300.com |
DNS History
3 records (3 active, 0 former)
●NScbru.br.ns.els-gms.att.net2026-03-16 → 2026-03-26 · 2 obs
● 2026-03-26 16:26:36
●NScmtu.mt.ns.els-gms.att.net2026-03-16 → 2026-03-26 · 2 obs
● 2026-03-26 16:26:36
●NSdbru.br.ns.els-gms.att.net2026-03-16 → 2026-03-26 · 2 obs
● 2026-03-26 16:26:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, l.gtld-servers.net, b.gtld-servers.net, a.gtld-servers.net... | - |
| forbes300.com | cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, dbru.br.ns.els-gms.att.net | - |
✅ Authoritative Response
Server:99.99.99.132
NS records: cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net, dbru.br.ns.els-gms.att.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for forbes300.com (unsigned zone)
⏱️ Timing
Total: 445ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
Analysis
Name Servers
The delegation for forbes300.com is handled by three name servers: cbru.br.ns.els-gms.att.net, dbru.br.ns.els-gms.att.net and cmtu.mt.ns.els-gms.att.net.
forbes300.com at least partially shares name servers with other domains, for instance littlebearproduce.com, nylimcollegesense.com, newyorklifestructuredsettlements.com, deloittecyber.net and yellowcorp.com.
These name servers are commonly used together with the name servers dmtu.mt.ns.els-gms.att.net, ns6.customer.level3.net, ns9.customer.level3.net, b23.ns.els-gms.att.net, m23.ns.els-gms.att.net, ns3.level3.net, ns4.level3.net, b24.ns.els-gms.att.net, m24.ns.els-gms.att.net and netbox.pcshs.com.
Two IP numbers per host:
cbru.br.ns.els-gms.att.net points to 2001:1890:1ff:9f0:68:94:156:132 and 68.94.156.132.
dbru.br.ns.els-gms.att.net points to 2001:1890:1ff:9f0:68:94:156:134 and 68.94.156.134.
cmtu.mt.ns.els-gms.att.net points to 2001:1890:1ff:9f1:99:99:99:132 and 99.99.99.132.