The California Institute of Technology aims to expand human knowledge and benefit society through research integrated with education.

4.67 Rating by ClearWebStats
This website has a #7,534 rank in global traffic. It has a edu as an domain extension. This website has a Google PageRank of 9 out of 10. The DNS for Caltech is hosted at 52.26.125.194. While no active threats were reported recently by users, caltech.edu is SAFE to browse.
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Traffic Report of Caltech

Daily Unique Visitors: 135,698
Daily Pageviews: 1,085,584

Estimated Valuation

Income Per Day: $ 1,086.00
Estimated Worth: $ 1,172,880.00

Search Engine Indexes

Google Indexed Pages: Not Applicable
Yahoo Indexed Pages: Not Applicable
Bing Indexed Pages: Not Applicable

Search Engine Backlinks

Google Backlinks: Not Applicable
Bing Backlinks: Not Applicable

Safety Information

Google Safe Browsing: No Risk Issues
Siteadvisor Rating: Not Applicable
WOT Trustworthiness: Not Applicable
WOT Privacy: Not Applicable
WOT Child Safety: Not Applicable

Website Ranks & Scores

Google Pagerank: View caltech.edu Pagerank
Alexa Rank: 7,534
Domain Authority: Not Applicable
Google Pagerank
PR 9 out of 10
PageSpeed Score
Score: 80on 100
Siteadvisor Rating
View caltech.edu site advisor rating Not Applicable

Where is caltech.edu server located?

Hosted IP Address:

52.26.125.194 View other site hosted with caltech.edu

Hosted Country:

caltech.edu hosted country US caltech.edu hosted country

Location Latitude:

45.8401

Location Longitude:

-119.705

Social Engagement

Facebook Shares: Not Applicable
Facebook Likes: Not Applicable
Facebook Comments: Not Applicable

Page Resources Breakdown

View caltech.edu HTML resources

Homepage Links Analysis

Home - www.caltech.edu

Similar Domain Names

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Website Inpage Analysis

H1 Headings: 1 H2 Headings: 7
H3 Headings: 9 H4 Headings: Not Applicable
H5 Headings: Not Applicable H6 Headings: Not Applicable
Total IFRAMEs: 1 Total Images: 126
Google Adsense: Not Applicable Google Analytics: UA-11248958-1

HTTP Header Analysis

HTTP/2 200
date: Wed, 16 Jul 2025 16:22:54 GMT
content-type: text/html; charset=utf-8
cdn-cache-control: public, max-age=600
content-security-policy: child-src 'self' www.youtube.com player.vimeo.com www.slideshare.net *.wufoo.com calendar.google.com docs.google.com accounts.google.com; connect-src 'self' www.google-analytics.com stats.addtoany.com sentry.io us.sentry.io maps.googleapis.com googleapis.com https://*.hotjar.com https://*.hotjar.io wss://*.hotjar.com cdn.datatables.net cdn.jsdelivr.net; form-action 'self' *.wufoo.com docs.google.com www.its.caltech.edu caltech.us5.list-manage.com api-a3b78b57.duosecurity.com; img-src 'self' data: caltech-prod.s3.amazonaws.com s3-us-west-1.amazonaws.com/www-prod-storage.cloud.caltech.edu/ divisions-prod.s3.amazonaws.com caltechsites-prod.s3.amazonaws.com *.caltech.edu i.ytimg.com www.youtube.com player.vimeo.com ustvstaticcdn1-a.akamaihd.net www.slideshare.net cdn.slidesharecdn.com www.gravatar.com stats.g.doubleclick.net cdnjs.cloudflare.com *.staticflickr.com *.cdninstagram.com www.google-analytics.com *.gstatic.com *.google.com *.googleapis.com googleapis.com www.googletagmanager.com www.facebook.com cdn.datatables.net https://static.hotjar.com https://script.hotjar.com; style-src 'self' 'unsafe-inline' cdnjs.cloudflare.com fonts.googleapis.com googleapis.com *.google.com cdn.datatables.net https://static.hotjar.com https://script.hotjar.com cdn.jsdelivr.net; default-src 'self'; frame-ancestors 'self' *.caltech.edu; base-uri 'self' *.caltech.edu; font-src 'self' public.slidesharecdn.com fonts.gstatic.com https://script.hotjar.com data:; frame-src 'self' www.youtube.com player.vimeo.com www.ustream.tv www.slideshare.net *.wufoo.com calendar.google.com docs.google.com www.google.com maps.google.com accounts.google.com cse.google.com https://syndicatedsearch.goog https://www.google.com/recaptcha/ https://recaptcha.google.com/recaptcha/ s3-us-west-2.amazonaws.com form.jotform.com static.addtoany.com *.facebook.com *.facebook.net api-a3b78b57.duosecurity.com cdn.knightlab.com www.buzzsprout.com caltech.us5.list-manage.com eyes.nasa.gov *.everbridge.net w.soundcloud.com; object-src 'self'; script-src 'self' 'unsafe-inline' 'unsafe-eval' cdnjs.cloudflare.com cdn.mathjax.org stats.g.doubleclick.net www.google-analytics.com www.googletagmanager.com *.google.com *.googleapis.com googleapis.com https://partner.googleadservices.com https://www.google.com/recaptcha/ https://www.gstatic.com/recaptcha/ api.duosecurity.com browser.sentry-cdn.com www.feedrapp.info sentry.io static.addtoany.com *.facebook.net cdn.datatables.net www.youtube.com cdn.jsdelivr.net https://static.hotjar.com https://script.hotjar.com; media-src 'self' www.youtube.com player.vimeo.com; report-uri /_csp
x-frame-options: SAMEORIGIN
permissions-policy: accelerometer=(), camera=(), gyroscope=(), magnetometer=(), microphone=()
vary: Cookie,Accept-Encoding
x-content-type-options: nosniff
referrer-policy: strict-origin-when-cross-origin
cross-origin-opener-policy: same-origin
last-modified: Wed, 16 Jul 2025 16:12:12 GMT
cf-cache-status: HIT
age: 202
server: cloudflare
cf-ray: 9602d74c8a157d06-EWR
content-encoding: gzip

Domain Nameserver Information

Host IP Address Country
ns0239.secondary.cloudflare.com caltech.edu name server information 162.159.33.114 caltech.edu server is located in Unknown or Invalid Region Unknown or Invalid Region
ns0090.secondary.cloudflare.com caltech.edu name server information 162.159.32.91 caltech.edu server is located in Unknown or Invalid Region Unknown or Invalid Region

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Full WHOIS Lookup for caltech.edu

This Registry database contains ONLY .EDU domains.
The data in the EDUCAUSE Whois database is provided
by EDUCAUSE for information purposes in order to
assist in the process of obtaining information about
or related to .edu domain registration records.

The EDUCAUSE Whois database is authoritative for the
.EDU domain.

A Web interface for the .EDU EDUCAUSE Whois Server is
available at: http://whois.educause.edu

By submitting a Whois query, you agree that this information
will not be used to allow, enable, or otherwise support
the transmission of unsolicited commercial advertising or
solicitations via e-mail. The use of electronic processes to
harvest information from this server is generally prohibited
except as reasonably necessary to register or modify .edu
domain names.

-------------------------------------------------------------

Domain Name: CALTECH.EDU

Registrant:
California Institute of Technology
Information Management Systems and Services MS 1-10
1200 East California Boulevard
Pasadena, CA 91125
USA

Administrative Contact:
Domain Admin
California Institute of Technology
1200 E. California Blvd.
MS 1-10
Pasadena, CA 91125
USA
+1.6263953500
[email protected]

Technical Contact:

California Institute of Technology
1200 E. California Blvd.
MS 1-10
Pasadena, CA 91125
USA
+1.6263953500
[email protected]

Name Servers:
NS0239.SECONDARY.CLOUDFLARE.COM
NS0090.SECONDARY.CLOUDFLARE.COM

Domain record activated: 06-Jan-1986
Domain record last updated: 21-Aug-2024
Domain expires: 31-Jul-2027