caltech.dev - robtex.com
caltech.dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2606:4700:3031::ac43:c50b🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::6815:154f🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.21.79Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.197.11🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ignacio.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c52🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ignacio.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c352🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ignacio.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2352🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ignacio.ns.cloudflare.com | ||||||
| A | 108.162.195.82🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ignacio.ns.cloudflare.com | ||||||
| A | 162.159.44.82Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ignacio.ns.cloudflare.com | ||||||
| A | 172.64.35.82🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ignacio.ns.cloudflare.com | ||||||
| NS | jo.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3aac🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jo.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0ac🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | jo.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20ac🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | jo.ns.cloudflare.com | ||||||
| A | 108.162.192.172🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jo.ns.cloudflare.com | ||||||
| A | 172.64.32.172🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jo.ns.cloudflare.com | ||||||
| A | 173.245.58.172🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | jo.ns.cloudflare.com | ||||||
| TXT | v=spf1 -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.21.79, 172.67.197.11 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:c50b, 2606:4700:3036::6815:154f | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=199, name=cloudflare-ech.com | ||||||
| SOA | ignacio.ns.cloudflare.comdns@cloudflare.com serial=2418650708 | ||||||
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)
●NSignacio.ns.cloudflare.com2026-09-14 → 2026-10-30 · 2 obs
● 2026-10-30 01:14:16
●NSjo.ns.cloudflare.com2026-09-14 → 2026-10-30 · 2 obs
● 2026-10-30 01:14:16
●A104.21.21.792026-09-14 → 2026-10-30 · 2 obs
● 2026-10-30 01:14:16
●A172.67.197.112026-09-14 → 2026-10-30 · 2 obs
● 2026-10-30 01:14:16
●A2606:4700:3031::ac43:c50b2026-09-14 → 2026-10-30 · 2 obs
● 2026-10-30 01:14:16
●A2606:4700:3036::6815:154f2026-09-14 → 2026-10-30 · 2 obs
● 2026-10-30 01:14:16
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld1.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com, ns-tld3.charlestonroadregistry.com, ns-tld4.charlestonroadregistry.com... | - |
| caltech.dev | ignacio.ns.cloudflare.com, jo.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.172
NS records: ignacio.ns.cloudflare.com, jo.ns.cloudflare.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 3260ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.197.11, 104.21.21.79 |
| AAAA | 2 | 2606:4700:3031::ac43:c50b, 2606:4700:3036::6815:154f |
| NS | 2 | ignacio.ns.cloudflare.com, jo.ns.cloudflare.com |
| TXT | 1 | v=spf1 -all |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ignacio.ns.cloudflare.com dns.cloudflare |
Analysis
IP Addresses
caltech.dev resolves to four IP addresses: 104.21.21.79, 172.67.197.11, 2606:4700:3031::ac43:c50b and 2606:4700:3036::6815:154f.
Two other host names, along with atwebstudio.org, agentoto88.group and madeinbritainltd.com, also share IP numbers with caltech.dev.
Name Servers
Two name servers handle the delegation for caltech.dev: ignacio.ns.cloudflare.com and jo.ns.cloudflare.com.
caltech.dev shares its NS records with other domains, for example mydukanbill.com, academic-homepage-2t2.pages.dev, ratumahjong.site and two others.
caltech.dev partially shares its NS delegation with several other domains, including fit5032-2025-kunqin-35523220.pages.dev, nicolaspereiraxp1.workers.dev, zgzhaf.com and two others.
The name servers aleena.ns.cloudflare.com, dina.ns.cloudflare.com, clayton.ns.cloudflare.com and felicity.ns.cloudflare.com are often found in use alongside these name servers.
DNS names with 6 IP addresses:
ignacio.ns.cloudflare.com resolves to 108.162.195.82, 162.159.44.82 and 172.64.35.82 among others, with 3 other IP addresses in total.
jo.ns.cloudflare.com resolves to 108.162.192.172, 172.64.32.172 and 173.245.58.172 among others, with 3 other IP addresses in total.