studycodex.com - dns.ninja
studycodex.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:1560🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::ac43:c5a7🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.21.96Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.197.167🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | dahlia.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3a59🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c059🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2059🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 108.162.192.89🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 172.64.32.89🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| A | 173.245.58.89🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | dahlia.ns.cloudflare.com | ||||||
| NS | todd.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b92Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 2803:f800:50::6ca2:c192Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| A | 2a06:98c1:50::ac40:2192Cloudflare2a06:98c1:50::/45 | ||||||
| A | 108.162.193.146Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 172.64.33.146Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| A | 173.245.59.146Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.21.96, 172.67.197.167 | ||||||
| IPv6 hints | 2606:4700:3030::6815:1560, 2606:4700:3033::ac43:c5a7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=165, name=cloudflare-ech.com | ||||||
| SOA | dahlia.ns.cloudflare.comdns@cloudflare.com serial=2413921801 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1790642519 | ||||||
Subdomains
blog.studycodex.com |
Same first word
studycodex.com |
Similar names
Previous names
Next names
DNS History
6 records (6 active, 0 former)
●NSdahlia.ns.cloudflare.com2026-09-03 → 2026-09-29 · 2 obs
● 2026-09-29 00:58:14
●NStodd.ns.cloudflare.com2026-09-03 → 2026-09-29 · 2 obs
● 2026-09-29 00:58:14
●A104.21.21.962026-09-03 → 2026-09-29 · 2 obs
● 2026-09-29 00:58:14
●A172.67.197.1672026-09-03 → 2026-09-29 · 2 obs
● 2026-09-29 00:58:14
●A2606:4700:3030::6815:15602026-09-03 → 2026-09-29 · 2 obs
● 2026-09-29 00:58:14
●A2606:4700:3033::ac43:c5a72026-09-03 → 2026-09-29 · 2 obs
● 2026-09-29 00:58:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | k.gtld-servers.net, l.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net... | - |
| studycodex.com | todd.ns.cloudflare.com, dahlia.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.192.89
NS records: todd.ns.cloudflare.com, dahlia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studycodex.com (unsigned zone)
⏱️ Timing
Total: 509ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.197.167, 104.21.21.96 |
| AAAA | 2 | 2606:4700:3030::6815:1560, 2606:4700:3033::ac43:c5a7 |
| NS | 2 | dahlia.ns.cloudflare.com, todd.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | dahlia.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (todd.ns.cloudflare.com, todd.ns.cloudflare.com, todd.ns.cloudflare.com...)
Analysis
Hierarchy
studycodex.com is a parent domain of blog.studycodex.com.
IP Addresses
studycodex.com has four IP addresses: 104.21.21.96, 172.67.197.167, 2606:4700:3030::6815:1560 and 2606:4700:3033::ac43:c5a7.
octokeen.com, patryk-lawicki.pl, rrrakyat4d.com plus two other host names have IP numbers in common with studycodex.com.
Name Servers
studycodex.com uses two name servers for its delegation: dahlia.ns.cloudflare.com and todd.ns.cloudflare.com.
The name server configuration of studycodex.com is shared with other domains, for instance mamali-dr2.pages.dev, mrhtv.xyz, tedbaker.ca and two others.
studycodex.com shares at least some of its name servers with other domains, including 2r9njq5zt8.workers.dev, grupoinstrumental.com, spetst.org and two others.
These name servers are frequently paired with the name servers wally.ns.cloudflare.com and sullivan.ns.cloudflare.com.
Hosts with 6 IP addresses each:
Hostname dahlia.ns.cloudflare.com directs to 108.162.192.89, 172.64.32.89 and 173.245.58.89 along with 3 other IP addresses.
Hostname todd.ns.cloudflare.com directs to 108.162.193.146, 172.64.33.146 and 173.245.59.146 along with 3 other IP addresses.