Domain · Tranco #3,241

caltech.edu

caltech.edu is ranked #3,241 among the world's most-visited sites (Tranco). It resolves to 52.26.125.194, hosted on ec2-52-26-125-194.us-west-2.compute.amazonaws.com, and presents a TLS certificate issued by InCommon, LLC.

HTTP 301

Tranco rank	#3,241
IPv4	52.26.125.194
Hosting / reverse DNS	ec2-52-26-125-194.us-west-2.compute.amazonaws.com
Nameservers	ns0090.secondary.cloudflare.com, ns0239.secondary.cloudflare.com
Mail servers (MX)	mx2.caltech.iphmx.com (10), mx1.caltech.iphmx.com (10)
HTTP status	301 → http://www.caltech.edu/
Web server	Apache/2.4.62 (Red Hat Enterprise Linux) OpenSSL/3.5.5
Detected tech	Apache/2.4.62 (Red Hat Enterprise Linux) OpenSSL/3.5.5
TLS certificate	InCommon, LLC · expires 2026-12-27

Linked company

This domain's name matches a legal entity in our directory:

CALTECH SA

Notable DNS TXT records

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autodesk-domain-verification=TtWEzwdFn86i9o8NX_8R
anthropic-domain-verification-rw8528=rFwrZAPawzCVNGD318e9zzavQ
1password-site-verification=VRLN67QMNNEPXIIREL6TDZABF4
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openai-domain-verification=dv-8LkNkbqCFWsyOdGQbgXugk2j

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FAQ

What is the IP address of caltech.edu?

caltech.edu resolves to 52.26.125.194 (ec2-52-26-125-194.us-west-2.compute.amazonaws.com).

Who issued the SSL certificate for caltech.edu?

The TLS/SSL certificate for caltech.edu was issued by InCommon, LLC, valid until 2026-12-27.

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DNS/HTTP/TLS observed 2026-08-06; registration data via RDAP. Informational only. Download JSON · CSV · Browse domains