sentientnet.com - robtex.com
sentientnet.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:420:1101:1::b🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | redirect.cisco.com | ||||||
| A | 72.163.4.154🇺🇸 ASNTTCISCO72.163.4.0/24 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| NS | ns1.cisco.com ⭐ | ||||||
| A | 2001:420:1101:6::a🇺🇸 ASNTTCISCO2001:420:1100::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns1.cisco.com | ||||||
| A | 72.163.5.201🇺🇸 ASNTTCISCO72.163.0.0/18 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns1.cisco.com | ||||||
| NS | ns2.cisco.com | ||||||
| A | 2001:420:2041:5000::a🇺🇸 ASNTTCISCO2001:420:2000::/35 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns2.cisco.com | ||||||
| A | 64.102.255.44🇺🇸 ASNTTCISCO64.102.0.0/16 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns2.cisco.com | ||||||
| NS | ns3.cisco.com | ||||||
| A | 2001:420:1201:7::a🇺🇸 ASNTTCISCO2001:420:1200::/41 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns3.cisco.com | ||||||
| A | 173.37.146.41🇺🇸 ASNTTCISCO173.37.128.0/19 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | ns3.cisco.com | ||||||
| SOA | ns1.cisco.compostmaster@cisco.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=1775132237 | ||||||
Same first word
sentientnet.com |
DNS History
7 records (5 active, 2 former)
○NSedns-aln1-1-l2017-05-22 → 2017-05-22 · 4 obs
● 2017-05-22 05:47:38
○ 2026-03-31 13:46:58
○ 2026-04-02 12:34:20
○NSedns-aln1-1-l.cisco.com2015-07-11 → 2016-09-15 · 5 obs
● 2015-07-11 21:21:32
● 2016-09-15 23:47:42
○ 2017-05-22 05:47:38
○ 2026-04-02 12:34:20
●NSns3.cisco.com2015-07-11 → 2026-04-02 · 3 obs
● 2015-07-11 21:21:32
● 2026-04-02 12:34:20
●A2001:420:1101:1::b2015-07-11 → 2026-04-02 · 3 obs
● 2015-07-11 21:21:32
● 2026-04-02 12:34:20
●A72.163.4.1542015-07-11 → 2026-04-02 · 3 obs
● 2015-07-11 21:21:32
● 2026-04-02 12:34:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | c.gtld-servers.net, b.gtld-servers.net, g.gtld-servers.net, j.gtld-servers.net... | - |
| sentientnet.com | ns1.cisco.com, ns2.cisco.com, ns3.cisco.com | 6 records |
✅ Authoritative Response
Server:173.37.146.41
NS records: ns1.cisco.com, ns2.cisco.com, ns3.cisco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sentientnet.com (unsigned zone)
⏱️ Timing
Total: 170ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 72.163.4.154 |
| AAAA | 1 | 2001:420:1101:1::b |
| NS | 3 | ns3.cisco.com, ns2.cisco.com... |
| SOA | 1 | ns1.cisco.com postmaster.cisco.com |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.cisco.com, ns1.cisco.com, ns2.cisco.com...)
Analysis
IP Addresses
Two IP numbers are pointed to by sentientnet.com: 2001:420:1101:1::b and 72.163.4.154.
other host names include cisco.so.it, cisco.fr, ciscocpn.com, cisco.info.fj and ciscosystems.al.it; they share IP numbers with sentientnet.com.
Name Servers
sentientnet.com is delegated to three name servers ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
sentientnet.com at least partially shares name servers with other domains, for instance cisco-telepresence.mobi, xn--h1aemjb.xn--p1ai, data-collage.mobi, clasdata.com and ciscobuy.com.
Host names with two IP numbers:
ns1.cisco.com points to 2001:420:1101:6::a and 72.163.5.201; ns2.cisco.com points to 2001:420:2041:5000::a and 64.102.255.44; ns3.cisco.com points to 2001:420:1201:7::a and 173.37.146.41.