www.classdata.com - robtex.com
www.classdata.com
| CNAME | redirect.cisco.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 | ||||||
classdata.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.cisco.com ⭐ | ||||||
| NS | ns2.cisco.com | ||||||
| NS | ns3.cisco.com | ||||||
| SOA | ns1.cisco.compostmaster@cisco.com serial=18 | ||||||
PTR for
Same first word
Similar names
DNS History
3 records (1 active, 2 former)
○A2001:420:1101:1::b2015-06-07 → 2016-12-30 · 4 obs
● 2015-06-07 21:05:36
● 2016-12-30 19:22:24
○ 2018-01-26 11:00:14
○ 2026-04-03 21:12:46
● 2016-12-30 19:22:24
○ 2018-01-26 11:00:14
○ 2026-04-03 21:12:46
○A72.163.4.1542015-06-07 → 2016-12-30 · 4 obs
● 2015-06-07 21:05:36
● 2016-12-30 19:22:24
○ 2018-01-26 11:00:14
○ 2026-04-03 21:12:46
● 2016-12-30 19:22:24
○ 2018-01-26 11:00:14
○ 2026-04-03 21:12:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | f.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net... | - |
| classdata.com | ns1.cisco.com, ns2.cisco.com, ns3.cisco.com | 6 records |
✅ Authoritative Response
Server:64.102.255.44
NS records: ns1.cisco.com, ns2.cisco.com, ns3.cisco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for classdata.com (unsigned zone)
⏱️ Timing
Total: 267ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| CNAME | 1 | redirect.cisco.com |
📌 Glue Records Collected
Total: 6
Out-of-bailiwick: 6 (ns1.cisco.com, ns1.cisco.com, ns2.cisco.com...)
Analysis
IP Addresses
www.classdata.com points to two IP numbers: 2001:420:1101:1::b and 72.163.4.154.
Other host names such as cisco.ee, ciscosystems.net.au, mobility.cisco, ciscocapital.com and salesatcisco.com share IPs with www.classdata.com.