install.doctrinal.systems - dns.ninja
install.doctrinal.systems
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:17c1🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:d4f7🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.23.193Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.212.247🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.23.193, 172.67.212.247 | ||||||
| IPv6 hints | 2606:4700:3033::6815:17c1, 2606:4700:3036::ac43:d4f7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=238, name=cloudflare-ech.com | ||||||
doctrinal.systems
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:17c1🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:d4f7🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.23.193Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.212.247🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | cory.ns.cloudflare.com ⭐ | ||||||
| NS | luciane.ns.cloudflare.com | ||||||
| TXT | v=spf1 -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.23.193, 172.67.212.247 | ||||||
| IPv6 hints | 2606:4700:3033::6815:17c1, 2606:4700:3036::ac43:d4f7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=161, name=cloudflare-ech.com | ||||||
| SOA | cory.ns.cloudflare.comdns@cloudflare.com serial=2411602155 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●A104.21.23.1932026-06-28 → 2026-08-14 · 2 obs
● 2026-06-28 10:21:26
● 2026-08-14 08:46:18
● 2026-08-14 08:46:18
●A172.67.212.2472026-06-28 → 2026-08-14 · 2 obs
● 2026-06-28 10:21:26
● 2026-08-14 08:46:18
● 2026-08-14 08:46:18
●A2606:4700:3033::6815:17c12026-06-28 → 2026-08-14 · 2 obs
● 2026-06-28 10:21:26
● 2026-08-14 08:46:18
● 2026-08-14 08:46:18
●A2606:4700:3036::ac43:d4f72026-06-28 → 2026-08-14 · 2 obs
● 2026-06-28 10:21:26
● 2026-08-14 08:46:18
● 2026-08-14 08:46:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| systems | v0n0.nic.systems, v0n1.nic.systems, v2n0.nic.systems, v0n3.nic.systems... | 12 records |
| doctrinal.systems | luciane.ns.cloudflare.com, cory.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.93
NS records: luciane.ns.cloudflare.com, cory.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for doctrinal.systems (unsigned zone)
⏱️ Timing
Total: 234ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.212.247, 104.21.23.193 |
| AAAA | 2 | 2606:4700:3033::6815:17c1, 2606:4700:3036::ac43:d4f7 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (v0n0.nic.systems, v0n1.nic.systems, v0n2.nic.systems...)
Analysis
IP Addresses
install.doctrinal.systems has four IP addresses: 104.21.23.193, 172.67.212.247, 2606:4700:3033::6815:17c1 and 2606:4700:3036::ac43:d4f7.
Among the host names that share IP numbers with install.doctrinal.systems are ahebert.net, cmei.org.mx, spotbeturl.lol and two others.