Summary
- HTTP status
- 200
- IP address
- 52.26.125.194
- ASN
- —
- Hosting provider
- Amazon Technologies Inc.
- Country
- US
- Title
- Home - www.caltech.edu
- Description
- The California Institute of Technology aims to expand human knowledge and benefit society through research integrated with education.
- Language
- en
- Server
- cloudflare
- Generator
- —
- Certificate
- ValidInternet2
- Sitemap
- Present
- Domain name
- caltech.edu
SSL/TLS certificate
The SSL/TLS certificate encrypts exchanges between visitors and the website (HTTPS) and proves its identity. It is issued by a certificate authority after a more or less thorough check: of the domain name only (DV), of the organization that owns it (OV), or extended validation (EV).
- Certificate authority
- Internet2 (InCommon RSA Server CA 2)
- Validation type
- Organization validation (OV)
- Holder
- California Institute of Technology
- Status
- Valid
- Covered domains
- oscweb.caltech.edu, *.oscweb-test.caltech.edu, *.oscweb.caltech.edu, *.staging.caltech.edu, *.test.caltech.edu, caltech.edu, caltech.info, caltech.net, caltech.org, emergency.caltech.edu and 26 others
- Valid from
- November 3, 2025
- Valid until
- December 5, 2026 (expires in 63 days)
- Protocol
- TLSv1.3
- Key
- RSA 2048 bits
Sitemap
A sitemap lists the pages of a website to help search engines discover them. It can have any name when it is declared in the robots.txt file.
The robots.txt file declares 1 sitemap.
| File | Content | Last modified |
|---|---|---|
| https://www.caltech.edu/sitemap.xml | 64 pages | October 1, 2026 |
Redirects
- 301 http://caltech.edu/
- 301 http://www.caltech.edu/
- 200 https://www.caltech.edu/ — Final page
Outgoing links
The home page links to 14 other websites.