catalyst.info - robtex.com
catalyst.info
| 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=2 | ||||||
info
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.info.afilias-nst.info ⭐ | ||||||
| NS | a2.info.afilias-nst.info | ||||||
| NS | b0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | b2.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| NS | c0.info.afilias-nst.info | ||||||
| NS | d0.info.afilias-nst.org ⚠️ Not in parent delegation | ||||||
| SOA | a0.info.afilias-nst.infohostmaster@donuts.email serial=1778295205 | ||||||
Same first word
Similar names
DNS History
5 records (3 active, 2 former)
○NSedns-aln1-1-l2017-09-11 → 2017-09-11 · 4 obs
○ 2016-11-17 23:42:16
● 2017-09-11 15:44:04
○ 2026-05-03 12:28:40
○ 2026-05-09 03:25:12
● 2017-09-11 15:44:04
○ 2026-05-03 12:28:40
○ 2026-05-09 03:25:12
○NSedns-aln1-1-l.cisco.com2015-08-02 → 2016-11-17 · 4 obs
● 2015-08-02 01:41:02
● 2016-11-17 23:42:16
○ 2017-09-11 15:44:04
○ 2026-05-09 03:25:12
● 2016-11-17 23:42:16
○ 2017-09-11 15:44:04
○ 2026-05-09 03:25:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| info | a2.info.afilias-nst.info, a0.info.afilias-nst.info, c0.info.afilias-nst.info | - |
| catalyst.info | ns3.cisco.com, ns1.cisco.com, ns2.cisco.com | - |
✅ Authoritative Response
Server:173.37.146.41
NS records: ns3.cisco.com, ns1.cisco.com, ns2.cisco.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for catalyst.info (unsigned zone)
⏱️ Timing
Total: 1021ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 3 | ns1.cisco.com, ns3.cisco.com... |
| SOA | 1 | ns1.cisco.com postmaster.cisco.com |
Analysis
Name Servers
The delegation for catalyst.info is handled by three name servers: ns1.cisco.com, ns2.cisco.com and ns3.cisco.com.
catalyst.info at least partially shares name servers with other domains, for instance netacad-quality.com, femtoapps.net, tandberg.co.za, hynet.co.il and ciscotandberg.org.
Two IP numbers per host:
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.