smartu.com - dns.ninja
smartu.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | cbru.br.ns.els-gms.att.net ⭐ | ||||||
| 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 | ||||||
| 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 | ||||||
| TXT | 5soq1gpt/DeqJ/roxcirHC96hIND49dD30zqrIlC5jjwFbTCIinH02hhkCb+U6ag8yuYmWaoYY3Fz... | ||||||
| TXT | ms=ms51083702 | ||||||
| SOA | cbru.br.ns.els-gms.att.netrm-hostmaster@ems.att.com serial=5 | ||||||
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=1782654490 | ||||||
Subdomains
www.smartu.com |
Same first word
Similar names
DNS History
5 records (2 active, 3 former)
●NScbru.br.ns.els-gms.att.net2015-08-23 → 2026-06-28 · 3 obs
● 2015-08-23 16:54:02
● 2026-06-28 14:08:26
●NScmtu.mt.ns.els-gms.att.net2015-08-23 → 2026-06-28 · 3 obs
● 2015-08-23 16:54:02
● 2026-06-28 14:08:26
○NSns81.worldnic.com2007-10-27 → 2007-10-27 · 3 obs
○ 2015-08-23 16:54:02
○ 2026-06-28 14:08:26
○NSns82.worldnic.com2007-10-27 → 2007-10-27 · 3 obs
○ 2015-08-23 16:54:02
○ 2026-06-28 14:08:26
○A209.62.20.1882007-10-27 → 2007-10-27 · 3 obs
○ 2015-08-23 16:54:02
○ 2026-06-28 14:08:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, d.gtld-servers.net... | - |
| smartu.com | cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net | - |
✅ Authoritative Response
Server:68.94.156.132
NS records: cbru.br.ns.els-gms.att.net, cmtu.mt.ns.els-gms.att.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for smartu.com (unsigned zone)
⏱️ Timing
Total: 545ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | cmtu.mt.ns.els-gms.att.net, cbru.br.ns.els-gms.att.net |
| TXT | 2 | ms=ms51083702, 5soq1gpt/DeqJ/roxcirHC96hIND49dD30zqrIlC |
| SOA | 1 | cbru.br.ns.els-gms.att.net rm-hostmaster |
Analysis
Hierarchy
www.smartu.com is a subdomain of smartu.com.
Name Servers
smartu.com is delegated to two name servers: cbru.br.ns.els-gms.att.net and cmtu.mt.ns.els-gms.att.net.
smartu.com shares its name server setup with other domains, including ibew.net, 90.241.216.in-addr.arpa, textron.com.cn and two others.
The name servers of smartu.com overlap at least partially with those of other domains — among them ups.hu, cclmytrip.com, goldmansachswealthmanager.com and two more.
These name servers commonly appear in delegations together with dbru.br.ns.els-gms.att.net, dmtu.mt.ns.els-gms.att.net, dns3.carnival.com and 7 other.
cbru.br.ns.els-gms.att.net and cmtu.mt.ns.els-gms.att.net each resolve to two IP addresses: cbru.br.ns.els-gms.att.net points to 68.94.156.132 and 2001:1890:1ff:9f0:68:94:156:132, while cmtu.mt.ns.els-gms.att.net points to 99.99.99.132 and 2001:1890:1ff:9f1:99:99:99:132.