caltech.instructure.com
caltech.instructure.com is a live English-language website hosted on Amazon.com, Inc. (AS16509) in the United States, served by Apache. cl0q first saw it on 2026-06-16 and last crawled it on 2026-06-28. It resolves to 18.173.121.110 and has mail (MX) records set up. Its favicon is fingerprinted by SHA-256, so you can find every other site that serves the same icon.
How the site describes itself:
Caltech Shibboleth Login Service - Loading Session Information
| Status | 200 OK — live & indexed by cl0q |
|---|---|
| First seen | 2026-06-16 |
| Last crawled | 2026-06-28 |
| IPv4 | 18.173.121.110 |
| Network | AS16509 Amazon.com, Inc. · California |
| Mail (MX) | aspmx.l.google.com,alt1.aspmx.l.google.com,alt2.aspmx.l.google.com,aspmx3.googlemail.com,aspmx2.googlemail.com |
| Language | en |
| Server | Apache/2.4.63 (Red Hat Enterprise Linux) OpenSSL/3.5.5 mod_wsgi/5.0.0 Python/3.12 |