ciscosystems.sv - robtex.com
ciscosystems.sv
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.cisco.com ⚠️ Not in zone NS records | ||||||
| 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 ⚠️ Not in zone NS records | ||||||
| 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 ⚠️ Not in zone NS records | ||||||
| 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 | ||||||
sv
| DNSSEC | ⚠️ Not signed | ||||||
| NS | sir.red.sv ⭐ | ||||||
| NS | a.lactld.org ⚠️ Not in parent delegation | ||||||
| NS | dns-ext.nic.cr ⚠️ Not in parent delegation | ||||||
| NS | ix.red.sv | ||||||
| NS | ns.dns.br ⚠️ Not in parent delegation | ||||||
| NS | p.ns.sv | ||||||
| SOA | sir.red.svlito@ibarra.sv 2026-05-08 #1 | ||||||
Same first word
Similar names
DNS History
3 records (3 active, 0 former)
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| sv | p.ns.sv, dns-ext.nic.cr, ns.dns.br, ix.red.sv... | 10 records |
| ciscosystems.sv | ns1.cisco.com, ns3.cisco.com, ns2.cisco.com | - |
✅ Authoritative Response
Server:64.102.255.44
NS records: ns1.cisco.com, ns3.cisco.com, ns2.cisco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sv (unsigned zone)
⏱️ Timing
Total: 698ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|
📌 Glue Records Collected
Total: 10
In-bailiwick: 4 (p.ns.sv, p.ns.sv, ix.red.sv...)
Out-of-bailiwick: 6 (dns-ext.nic.cr, dns-ext.nic.cr, ns.dns.br...)
Analysis
Name Servers
ciscosystems.sv is delegated to three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
ciscosystems.sv at least partially shares name servers with other domains, for example ciscoprisma.biz, clouddatacommander.com, partner-seminar.org, sentryo.com and ciscosecurex.co.uk.
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