Is caltech.edu legit?
This website is highly trusted, benefiting from excellent security posture, clear identity, and robust infrastructure. The only minor concern is a partial set of legal pages.
Education average: 83/100 · based on 35 sites
Checked: April 28, 2026 at 11:01 AM UTC
Is caltech.edu a scam? Here's what we found.
The site boasts a strong security setup, utilizing TLS 1.3 with a valid certificate, and is confirmed clean by Google Web Risk, indicating a robust defense against cyber threats.
As a long-established domain for a major educational institution, the identity is clear and well-documented through WHOIS, instilling high confidence in who operates the site.
With a high Tranco rank and a clean slate on DNS blacklists, the site maintains a very strong online reputation, indicating widespread trust and legitimacy.
The website provides ample contact information and maintains a visible presence across multiple social media platforms, demonstrating a commitment to open communication.
While most compliance aspects appear strong, the absence of either a privacy policy or terms of service presents a slight gap in meeting full legal transparency standards.
The robust infrastructure includes multiple name servers, complete email authentication (SPF/DMARC), and a healthy sitemap, ensuring reliability and proper site function.
Signals Detected
This is a well-known, high-traffic website
No structured data markup found
This business has no Trustpilot presence — not unusual for smaller or newer companies
Resolves to: 52.26.125.194
Mail servers: mx2.caltech.iphmx.com., mx1.caltech.iphmx.com.
Domain has SPF email authentication configured
Domain has DMARC email authentication configured
DNS providers: ns0090.secondary.cloudflare.com., ns0239.secondary.cloudflare.com.
crt.sh returned status 502
Valid certificate, expires in 226 days
Certificate issued by Internet2
Connection uses TLS 1.3
robots.txt has 11 directives and references a sitemap
Site has custom branding and social media metadata
Site maintains a proper sitemap with 64 indexed pages
Site has Content Security Policy configured
X-Frame-Options: SAMEORIGIN
Web server: cloudflare
No threats detected by Google Web Risk
Could not query Wayback Machine
Not found on any DNS blacklists
Website is live and responding
Website appears to have contact information
Website is missing either privacy policy or terms of service
Website links to multiple social media platforms
Fast page load
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