classdata.com - robtex.com
classdata.com
| DNSSEC | ⚠️ Not signed | ||||||
| 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=18 | ||||||
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=1775201557 | ||||||
Subdomains
www.classdata.com |
Same first word
classdata.net |
classdata.com |
Similar names
DNS History
5 records (3 active, 2 former)
○NSedns-aln1-1-l2016-11-27 → 2017-10-12 · 5 obs
● 2016-11-27 11:46:34
● 2017-10-12 15:27:00
○ 2026-03-28 08:05:34
○ 2026-04-03 07:50:50
○NSedns-aln1-1-l.cisco.com2015-07-18 → 2016-03-28 · 4 obs
● 2016-03-28 23:57:46
○ 2016-11-27 11:46:34
○ 2026-04-03 07:50:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, m.gtld-servers.net, l.gtld-servers.net, g.gtld-servers.net... | - |
| classdata.com | ns1.cisco.com, ns2.cisco.com, ns3.cisco.com | 6 records |
✅ Authoritative Response
Server:72.163.5.201
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: 185ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| 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
Hierarchy
The parent of www.classdata.com is classdata.com.
Name Servers
classdata.com is delegated to three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
classdata.com at least partially shares name servers with other domains, for instance cisco-preferred-access.com, ciscospark.fr, ciscoexectech.org, ios.asia and ciscosurplus.eu.com.
Host ns1.cisco.com points to 2001:420:1101:6::a and 72.163.5.201; Host ns2.cisco.com points to 2001:420:2041:5000::a and 64.102.255.44; Host ns3.cisco.com points to 2001:420:1201:7::a and 173.37.146.41.