catalyst.us - dns.ninja
catalyst.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 72.163.4.154🇺🇸 ASNTTCISCO72.163.4.0/24 170 West Tasman Drive San Jose CA 95134 United States | ||||||
| PTR | redirect.cisco.com | ||||||
| NS | ns1.markmonitor.com ⭐ | ||||||
| A | 2620:10a:80a8::1🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| A | 149.112.160.1🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| NS | ns2.markmonitor.com | ||||||
| A | 2001:67c:10b8::1🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net | ||||||
| PTR | ns2.markmonitor.com | ||||||
| A | 176.97.158.1🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net | ||||||
| NS | ns3.markmonitor.com | ||||||
| A | 2620:10a:80a9::1🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| A | 149.112.161.1🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| NS | ns4.markmonitor.com | ||||||
| A | 2001:67c:1bc::1🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD2001:67c:1bc::/48 IPCom-NET Anycast | ||||||
| PTR | ns1.markmonitor.com | ||||||
| A | 192.174.68.1🇦🇹 RCODEZERO-ANYCAST-SEC1-TLD192.174.68.0/24 NICat-anycast-net | ||||||
| NS | ns5.markmonitor.com | ||||||
| A | 2620:10a:80a8::2🇨🇦 CIRA-22620:10a:80a8::/48 markmonitor v6 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| A | 149.112.160.2🇨🇦 CIRA-2149.112.160.0/24 markmonitor v4 cloud1 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| NS | ns6.markmonitor.com | ||||||
| A | 2001:67c:10b8::3🇨🇭 RCODEZERO-ANYCAST-SEC22001:67c:10b8::/48 IPCOM-anycast-net | ||||||
| PTR | ns6.markmonitor.com | ||||||
| A | 176.97.158.3🇦🇹 RCODEZERO-ANYCAST-SEC2176.97.158.0/24 NICat-anycast-net | ||||||
| NS | ns7.markmonitor.com | ||||||
| A | 2620:10a:80a9::2🇨🇦 CIRA-32620:10a:80a9::/48 markmonitor v6 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| A | 149.112.161.2🇨🇦 CIRA-3149.112.161.0/24 markmonitor v4 cloud2 979 Bank Street, Suite 400 Ottawa ON K1S 5K5 Canada | ||||||
| SOA | ns1.markmonitor.comhostmaster@markmonitor.com 2019-01-18 #1 | ||||||
us
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.cctld.us ⭐ | ||||||
| NS | b.cctld.us | ||||||
| NS | f.cctld.us | ||||||
| NS | k.cctld.us | ||||||
| NS | m.cctld.us | ||||||
| NS | n.cctld.us | ||||||
| NS | w.cctld.us | ||||||
| NS | x.cctld.us | ||||||
| NS | y.cctld.us | ||||||
| SOA | a.cctld.usadmin@tldns.godaddy serial=1782771251 | ||||||
Same first word
Similar names
DNS History
12 records (8 active, 4 former)
○NSa4.nstld.com2015-05-23 → 2017-05-17 · 4 obs
● 2017-05-17 04:32:52
○ 2026-03-31 13:44:56
○ 2026-06-29 22:38:46
○NSf4.nstld.com2015-05-23 → 2017-05-17 · 4 obs
● 2017-05-17 04:32:52
○ 2026-03-31 13:44:56
○ 2026-06-29 22:38:46
○NSg4.nstld.com2015-05-23 → 2017-05-17 · 4 obs
● 2017-05-17 04:32:52
○ 2026-03-31 13:44:56
○ 2026-06-29 22:38:46
○NSl4.nstld.com2015-05-23 → 2017-05-17 · 4 obs
● 2017-05-17 04:32:52
○ 2026-03-31 13:44:56
○ 2026-06-29 22:38:46
●NSns1.markmonitor.com2026-03-31 → 2026-06-29 · 3 obs
● 2026-03-31 13:44:56
● 2026-06-29 22:38:46
●NSns2.markmonitor.com2026-03-31 → 2026-06-29 · 3 obs
● 2026-03-31 13:44:56
● 2026-06-29 22:38:46
●NSns3.markmonitor.com2026-03-31 → 2026-06-29 · 3 obs
● 2026-03-31 13:44:56
● 2026-06-29 22:38:46
●NSns4.markmonitor.com2026-03-31 → 2026-06-29 · 3 obs
● 2026-03-31 13:44:56
● 2026-06-29 22:38:46
●NSns5.markmonitor.com2026-03-31 → 2026-06-29 · 3 obs
● 2026-03-31 13:44:56
● 2026-06-29 22:38:46
●NSns6.markmonitor.com2026-03-31 → 2026-06-29 · 3 obs
● 2026-03-31 13:44:56
● 2026-06-29 22:38:46
●NSns7.markmonitor.com2026-03-31 → 2026-06-29 · 3 obs
● 2026-03-31 13:44:56
● 2026-06-29 22:38:46
●A72.163.4.1542015-05-23 → 2026-06-29 · 2 obs
● 2026-06-29 22:38:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| catalyst.us | ns1.markmonitor.com, ns3.markmonitor.com, ns5.markmonitor.com, ns2.markmonitor.com... | - |
✅ Authoritative Response
Server:149.112.161.1
NS records: ns1.markmonitor.com, ns3.markmonitor.com, ns5.markmonitor.com, ns2.markmonitor.com, ns6.markmonitor.com, ns7.markmonitor.com, ns4.markmonitor.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for catalyst.us (unsigned zone)
⏱️ Timing
Total: 594ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 72.163.4.154 |
| NS | 7 | ns1.markmonitor.com, ns2.markmonitor.com... |
| SOA | 1 | ns1.markmonitor.com hostmaster.markmonit |
Analysis
IP Addresses
catalyst.us resolves to one IP address: 72.163.4.154.
ciscoiris.com, cisco.arts.ro, cisco.ao.it and two other host names share IP numbers with catalyst.us.
Name Servers
catalyst.us is delegated to 7 name servers: ns1.markmonitor.com, ns2.markmonitor.com, ns3.markmonitor.com and 4 other.
catalyst.us partially shares its NS delegation with several other domains, including newscorporationcanada.info, whereiambook.com, easy2export.com and two others.
The name servers ns4.markmonitor.com, ns5.markmonitor.com, ns6.markmonitor.com and ns7.markmonitor.com are often found in use alongside these name servers.
Hostnames that resolve to two IP addresses:
ns1.markmonitor.com points to 149.112.160.1 and 2620:10a:80a8::1.
ns2.markmonitor.com points to 176.97.158.1 and 2001:67c:10b8::1.
ns3.markmonitor.com points to 149.112.161.1 and 2620:10a:80a9::1.
ns4.markmonitor.com points to 192.174.68.1 and 2001:67c:1bc::1.
ns5.markmonitor.com points to 149.112.160.2 and 2620:10a:80a8::2.
ns6.markmonitor.com points to 176.97.158.3 and 2001:67c:10b8::3.
ns7.markmonitor.com points to 149.112.161.2 and 2620:10a:80a9::2.