studyhq.dev - robtex.com
studyhq.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:1357🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:b9b1🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.19.87Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.185.177🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | carter.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b50🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carter.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c150🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | carter.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2150🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | carter.ns.cloudflare.com | ||||||
| A | 108.162.193.80🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carter.ns.cloudflare.com | ||||||
| A | 172.64.33.80🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carter.ns.cloudflare.com | ||||||
| A | 173.245.59.80🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | carter.ns.cloudflare.com | ||||||
| NS | donna.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3a97🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c097🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2097🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 108.162.192.151🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 172.64.32.151🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| A | 173.245.58.151🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | donna.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.19.87, 172.67.185.177 | ||||||
| IPv6 hints | 2606:4700:3034::6815:1357, 2606:4700:3035::ac43:b9b1 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=178, name=cloudflare-ech.com | ||||||
| SOA | carter.ns.cloudflare.comdns@cloudflare.com serial=2412523844 | ||||||
dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
6 records (6 active, 0 former)
●NScarter.ns.cloudflare.com2026-08-25 → 2026-08-30 · 2 obs
● 2026-08-30 18:14:44
●NSdonna.ns.cloudflare.com2026-08-25 → 2026-08-30 · 2 obs
● 2026-08-30 18:14:44
●A104.21.19.872026-08-25 → 2026-08-30 · 2 obs
● 2026-08-30 18:14:44
●A172.67.185.1772026-08-25 → 2026-08-30 · 2 obs
● 2026-08-30 18:14:44
●A2606:4700:3034::6815:13572026-08-25 → 2026-08-30 · 2 obs
● 2026-08-30 18:14:44
●A2606:4700:3035::ac43:b9b12026-08-25 → 2026-08-30 · 2 obs
● 2026-08-30 18:14:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| studyhq.dev | carter.ns.cloudflare.com, donna.ns.cloudflare.com | - |
✅ Authoritative Response
Server:108.162.193.80
NS records: carter.ns.cloudflare.com, donna.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for studyhq.dev (unsigned zone)
⏱️ Timing
Total: 621ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.19.87, 172.67.185.177 |
| AAAA | 2 | 2606:4700:3034::6815:1357, 2606:4700:3035::ac43:b9b1 |
| NS | 2 | carter.ns.cloudflare.com, donna.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | carter.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
studyhq.dev resolves to four IP addresses: 104.21.19.87, 172.67.185.177, 2606:4700:3034::6815:1357 and 2606:4700:3035::ac43:b9b1.
Additional host names — citytrusthealthcare.co.uk, iotmojo.com, jocuridenoroccazinou.com and two others — share IP numbers with studyhq.dev.
Name Servers
DNS delegation for studyhq.dev points to two name servers: carter.ns.cloudflare.com and donna.ns.cloudflare.com.
studyhq.dev shares its name server setup with other domains, including jiyancinema.pages.dev, tokaido2026.com, lumeamobila.ro and two others.
studyhq.dev has at least partial name server overlap with other domains, such as broadband69.com, gameanalytics.games, 323323.com and two others.
It is common to see these name servers used together with name servers marek.ns.cloudflare.com and sara.ns.cloudflare.com.
Host names with 6 IP numbers:
carter.ns.cloudflare.com has IP addresses 108.162.193.80, 172.64.33.80 and 173.245.59.80, plus 3 other.
donna.ns.cloudflare.com has IP addresses 108.162.192.151, 172.64.32.151 and 173.245.58.151, plus 3 other.