opencolumn.us - robtex.com
opencolumn.us
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:42f1🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:a5e0🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.66.241Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.165.224🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ali.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a3b🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ali.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c03b🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ali.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:203b🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ali.ns.cloudflare.com | ||||||
| A | 108.162.192.59🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ali.ns.cloudflare.com | ||||||
| A | 172.64.32.59🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ali.ns.cloudflare.com | ||||||
| A | 173.245.58.59🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ali.ns.cloudflare.com | ||||||
| NS | earl.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3ba1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | earl.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1a1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | earl.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21a1🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | earl.ns.cloudflare.com | ||||||
| A | 108.162.193.161🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | earl.ns.cloudflare.com | ||||||
| A | 172.64.33.161🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | earl.ns.cloudflare.com | ||||||
| A | 173.245.59.161🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | earl.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.66.241, 172.67.165.224 | ||||||
| IPv6 | 2606:4700:3030::6815:42f1, 2606:4700:3033::ac43:a5e0 | ||||||
| SOA | ali.ns.cloudflare.comdns@cloudflare.com serial=2396789115 | ||||||
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=1771291699 | ||||||
rank #5764 in the tld
📈 Tranco rank: #855,908
Same first word
opencolumn.us |
DNS History
6 records (6 active, 0 former)
●NSali.ns.cloudflare.com2026-02-27 → 2026-03-14 · 2 obs
● 2026-03-14 01:33:36
●NSearl.ns.cloudflare.com2026-02-27 → 2026-03-14 · 2 obs
● 2026-03-14 01:33:36
●A104.21.66.2412026-02-27 → 2026-03-14 · 2 obs
● 2026-03-14 01:33:36
●A172.67.165.2242026-02-27 → 2026-03-14 · 2 obs
● 2026-03-14 01:33:36
●A2606:4700:3030::6815:42f12026-02-27 → 2026-03-14 · 2 obs
● 2026-03-14 01:33:36
●A2606:4700:3033::ac43:a5e02026-02-27 → 2026-03-14 · 2 obs
● 2026-03-14 01:33:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | m.cctld.us, f.cctld.us, w.cctld.us, b.cctld.us... | - |
| opencolumn.us | earl.ns.cloudflare.com, ali.ns.cloudflare.com | - |
✅ Authoritative Response
Server: 173.245.58.59
NS records: earl.ns.cloudflare.com, ali.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opencolumn.us (unsigned zone)
⏱️ Timing
Total: 709ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.66.241, 172.67.165.224 |
| AAAA | 2 | 2606:4700:3033::ac43:a5e0, 2606:4700:3030::6815:42f1 |
| NS | 2 | ali.ns.cloudflare.com, earl.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ali.ns.cloudflare.com dns.cloudflare.com |
Analysis
IP Addresses
opencolumn.us resolves to four IP numbers: 2606:4700:3030::6815:42f1, 2606:4700:3033::ac43:a5e0, 104.21.66.241 and 172.67.165.224.
Other host names such as www.jjhcmw.com, coeur-estuaire.fr, desiccator.info, liu.ee and drzelner.com share IPs with opencolumn.us.
Name Servers
opencolumn.us is delegated to two name servers: ali.ns.cloudflare.com and earl.ns.cloudflare.com.
opencolumn.us shares the same name server setup as blogechobuzznow.com, glowpulseworld360.com, swiftlevelupvault.com, quantumscrim.com and notetrailstream.com.
opencolumn.us at least partially shares name servers with other domains, for instance bookstop.co.nz, battlefrogseries.com, agile-ambition-quartz.pages.dev, 437286.xyz and candyland-casino.com.
these name servers are commonly used together with the name servers peyton.ns.cloudflare.com, matteo.ns.cloudflare.com, dan.ns.cloudflare.com, aarav.ns.cloudflare.com and woz.ns.cloudflare.com.
Host names with six IP numbers:
ali.ns.cloudflare.com points to 2606:4700:50::adf5:3a3b, 2803:f800:50::6ca2:c03b, 2a06:98c1:50::ac40:203b, 108.162.192.59, 172.64.32.59 and 173.245.58.59.
earl.ns.cloudflare.com points to 2606:4700:58::adf5:3ba1, 2803:f800:50::6ca2:c1a1, 2a06:98c1:50::ac40:21a1, 108.162.193.161, 172.64.33.161 and 173.245.59.161.