cortextech.us - dns.ninja
cortextech.us
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns-1284.awsdns-32.org ⭐ | ||||||
| A | 2600:9000:5305:400::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront | ||||||
| PTR | ns-1284.awsdns-32.org | ||||||
| A | 205.251.197.4🇺🇸 Amazon205.251.197.0/24 prefix | ||||||
| PTR | ns-1284.awsdns-32.org | ||||||
| NS | ns-1925.awsdns-48.co.uk | ||||||
| A | 2600:9000:5307:8500::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront | ||||||
| PTR | ns-1925.awsdns-48.co.uk | ||||||
| A | 205.251.199.133🇺🇸 Amazon205.251.199.0/24 prefix | ||||||
| PTR | ns-1925.awsdns-48.co.uk | ||||||
| NS | ns-460.awsdns-57.com | ||||||
| A | 2600:9000:5301:cc00::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront | ||||||
| PTR | ns-460.awsdns-57.com | ||||||
| A | 205.251.193.204🇺🇸 Amazon205.251.193.0/24 prefix | ||||||
| PTR | ns-460.awsdns-57.com | ||||||
| NS | ns-734.awsdns-27.net | ||||||
| A | 2600:9000:5302:de00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront | ||||||
| PTR | ns-734.awsdns-27.net | ||||||
| A | 205.251.194.222🇺🇸 Amazon205.251.194.0/24 prefix | ||||||
| PTR | ns-734.awsdns-27.net | ||||||
| SOA | ns-1284.awsdns-32.orgawsdns-hostmaster@amazon.com serial=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=1785212013 | ||||||
Subdomains
media-cdn.cortextech.us |
Same first word
cortextech.us |
cortextech.io |
DNS History
4 records (4 active, 0 former)
●NSns-1284.awsdns-32.org2026-03-07 → 2026-07-28 · 2 obs
● 2026-07-28 04:29:16
●NSns-1925.awsdns-48.co.uk2026-03-07 → 2026-07-28 · 2 obs
● 2026-07-28 04:29:16
●NSns-460.awsdns-57.com2026-03-07 → 2026-07-28 · 2 obs
● 2026-07-28 04:29:16
●NSns-734.awsdns-27.net2026-03-07 → 2026-07-28 · 2 obs
● 2026-07-28 04:29:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| us | b.cctld.us, f.cctld.us, k.cctld.us, m.cctld.us... | - |
| cortextech.us | ns-1284.awsdns-32.org, ns-734.awsdns-27.net, ns-460.awsdns-57.com, ns-1925.awsdns-48.co.uk | - |
✅ Authoritative Response
Server:205.251.193.204
NS records: ns-1284.awsdns-32.org, ns-734.awsdns-27.net, ns-460.awsdns-57.com, ns-1925.awsdns-48.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for cortextech.us (unsigned zone)
⏱️ Timing
Total: 321ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns-1284.awsdns-32.org, ns-1925.awsdns-48.co.uk... |
| SOA | 1 | ns-1284.awsdns-32.org awsdns-hostmaster. |
Analysis
Hierarchy
cortextech.us serves as the parent of media-cdn.cortextech.us.
Name Servers
The domain cortextech.us is delegated to these four name servers: ns-460.awsdns-57.com, ns-734.awsdns-27.net, ns-1284.awsdns-32.org and ns-1925.awsdns-48.co.uk.
cortextech.us has at least partial name server overlap with other domains, such as d3bddtc8lgtif3.cloudfront.net, n-bc.co.jp, g-commits.com and two others.
ns1-24-eu-west-3.ec2-rdns.amazonaws.com, ns2-24-eu-west-3.ec2-rdns.amazonaws.com and ns3-24-eu-west-3.ec2-rdns.amazonaws.com — plus 5 other name servers — are commonly paired with these name servers.
ns-460.awsdns-57.com, ns-734.awsdns-27.net, ns-1284.awsdns-32.org and ns-1925.awsdns-48.co.uk all point to exactly two IP numbers each: ns-460.awsdns-57.com → 205.251.193.204 and 2600:9000:5301:cc00::1; ns-734.awsdns-27.net → 205.251.194.222 and 2600:9000:5302:de00::1; ns-1284.awsdns-32.org → 205.251.197.4 and 2600:9000:5305:400::1; ns-1925.awsdns-48.co.uk → 205.251.199.133 and 2600:9000:5307:8500::1.