Caltech.edu Home | www.caltech.edu

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

Caltech.edu Overview

Caltech.edu is one of the most reputed and respected educational institutions worldwide. The website is an informative tool for educational collaboration for students, faculty, and researchers. Its purpose is to offer online resources and to promote a dedicated relationship between communication, science, and technology.

The website has a professional look with its white and red color palette. The top menu stands out with its clear and legible font, which allows visitors to navigate easily through different topics – academics, research, campus life, admissions, and more. The homepage offers a concise overview of the site's purpose and the highlights of the latest research ongoing within the institute.

As for user engagement, Caltech.edu offers a clean, user-centric design that guarantees a satisfactory experience for visitors who are looking for information regarding the institution. With more than 30,000 unique visitors per day, the website provides valuable insights into the student body's preferences, their level of understanding, and the kind of information that they need.

The hosting of the site is done through Amazon.com, one of the most trusted and reliable web-hosting platforms globally, ensuring that their services are up to par with industry best standards. The SSL Certificate is issued by Internet2, indicating that the website has undergone strict security standards, and all communications between the user's browser and the website are encrypted.

In terms of family-friendliness, Caltech.edu is safe for all ages. The website promotes diversity, inclusivity, and respect for one another, and their values align with the ethical and moral principles expected of academic institutions.

Lastly, PageSpeed Insights scores are of moderate speed. This denotes that while the website is fast enough, there is room for improvement to provide visitors with enhanced user experience, which is the sole aim of any website.

In summary, Caltech.edu offers a wide range of information regarding academics and research, and their vision for the future is transparent, making them one of the most legitimate and trustworthy educational institutions in the world.

Caltech.edu Rank Summary

Global Rank

8,163

Average Load Time

1.11sec

Links In Count

22,263

Website Value

$1.1 M

Audience Geography. Where are caltech.edu visitors located?

Country	Visitors
United States US	38.6%
China CN	15.3%
India IN	11.2%
Korea KR	2.6%
United Kingdom GB	2.3%
France FR	2.2%
Japan JP	2%
Germany DE	1.8%
Australia AU	1.6%
Other	22.2%

Country	Pageviews
United States US	47.5%
China CN	13.7%
India IN	8.7%
France FR	2.4%
United Kingdom GB	1.9%
Korea KR	1.6%
Australia AU	1.6%
Germany DE	1.6%
Mexico MX	1.5%
Other	19.4%

Country	Rank
United States US	3229
Switzerland CH	4077
India IN	4592
South Africa ZA	4825
Nigeria NG	4952
Australia AU	5449
China CN	5469
Korea KR	6070
Mexico MX	6620
Philippines PH	6669
Pakistan PK	6972
France FR	9320

Where do visitors go on caltech.edu?

Subdomain	Pageviews
ipac.caltech.edu	11.03%
feynmanlectures.caltech.edu	6.01%
scedc.caltech.edu	5.62%
library.caltech.edu	5.36%
caltech.edu	4.48%
skipper.caltech.edu	3.89%
ligo.caltech.edu	3.76%
access.caltech.edu	2.67%
vision.caltech.edu	2.65%
other	54.59%

Subdomain	Pageviews per User
skipper.caltech.edu	18
crust.caltech.edu	7.6
enroll.caltech.edu	7
lists.caltech.edu	7
mycaltechhealth.caltech.edu	6
noir.caltech.edu	5
tccon-wiki.caltech.edu	4.6
housing.caltech.edu	4
help.caltech.edu	4
ahweb.caltech.edu	4
other	2.06

Subdomain	Reach
ipac.caltech.edu	12.78%
library.caltech.edu	11.4%
caltech.edu	8.08%
scedc.caltech.edu	7.81%
feynmanlectures.caltech.edu	5.87%
cds.caltech.edu	3.69%
vision.caltech.edu	3.54%
its.caltech.edu	3.26%
cms.caltech.edu	3.12%
spitzer.caltech.edu	2.7%
other	50.76%

How popular is caltech.edu?

Period	Global Rank	Global Rank Delta
past 3 months	8163	1881
past month	8287	308
past week	8039	650
yesterday	10564	2170

Days	Pageviews Rank	Pageviews Rank Delta	Pageviews per Million	Pageviews per Million Delta	Pageviews per User	Pageviews per User Delta
90	9850	2521	763	-28.3%	2.75	-5.172%
30	10369	982	721	-10.71%	2.61	-8.741%
7	10613	1076	71	-12.28%	2.4	-5.49%
1	14749	2759	54	-17.9%	2.2	0%

Days	Reach Rank	Reach Rank Delta	Reach per Million	Reach per Million Delta
90	8140	1796	103	-24.46%
30	8139	96	102	-2.15%
7	7690	497	110	-7.326%
1	9928	1989	84	-17.75%

Caltech.edu Website Safety

Overview

Last Updated: 07/07/2024

Overall result - caltech.edu is safe.

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton Connect Safe

Last Updated: 03/21/2024

caltech.edu is safe.

Norton ConnectSafe evaluates caltech.edu for any unsafe and insecure content. The results are critical for families with young children.

Google Safe Search

Last Updated: 10/11/2016

caltech.edu is safe.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Google Safe Browsing

Last Updated: 01/09/2019

caltech.edu is safe.
Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.

Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

Site Advisor

Last Updated: 02/22/2021

caltech.edu is safe.

McAfee assesses caltech.edu for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze caltech.edu for mature or inappropriate content, only security checks are evaluated.

Web of Trust

Last Updated: 01/09/2019

caltech.edu child safety is very good.

The WOT calculates reputation of the caltech.edu. This reputation system receives ratings from users and information from third-party sources, assesses the caltech.edu for safety features and confirms, whether caltech.edu is suitable for children.

SSL Information

SSL Checker Tool

Domain	web.caltech.edu
Issuer Organization	Internet2
Issuer	InCommon RSA Server CA
Algorithm	RSA-SHA256
Valid form	04/16/2018
Expiration	04/15/2020
Signed	Certificate is not self signed
Additional Domains	web.caltech.edu caltech.edu odb.acs.caltech.edu www.cco.caltech.edu www.its.caltech.edu www.web.caltech.edu

Caltech.edu Rank History

Alexa Rank shows how popular caltech.edu is in comparison with other sites. The most popular site has Alexa Rank equals 1. If caltech.edu has Alexa Rank equals 100,000, then it is in TOP 100,000 popular sites in the world. The rank is calculated using a combination of average daily visitors to caltech.edu and pageviews on caltech.edu over the past 3 months.

Caltech.edu Hosting Information

Server Location

Geolocation Tool

ASN Information

ASN Lookup Tool

ASN ID: 16509

ASN Title: AMAZON-02 - Amazon.com, Inc., US

Last Update: 10/02/2023

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

ASNumber: 16509
ASName: AMAZON-02
ASHandle: AS16509
RegDate: 2000-05-03
Updated: 2012-03-02
Ref: https://rdap.arin.net/registry/autnum/16509

OrgName: Amazon.com, Inc.
OrgId: AMAZON-4
Address: 1918 8th Ave
City: SEATTLE
StateProv: WA
PostalCode: 98101-1244
Country: US
RegDate: 1995-01-23
Updated: 2017-01-28
Ref: https://rdap.arin.net/registry/entity/AMAZON-4

OrgAbuseHandle: AEA8-ARIN
OrgAbuseName: Amazon EC2 Abuse
OrgAbusePhone: +1-206-266-4064
OrgAbuseEmail: abuse@amazonaws.com
OrgAbuseRef: https://rdap.arin.net/registry/entity/AEA8-ARIN

OrgTechHandle: ANO24-ARIN
OrgTechName: Amazon EC2 Network Operations
OrgTechPhone: +1-206-266-4064
OrgTechEmail: amzn-noc-contact@amazon.com
OrgTechRef: https://rdap.arin.net/registry/entity/ANO24-ARIN

RTechHandle: AC6-ORG-ARIN
RTechName: Amazon-com Incorporated
RTechPhone: +1-206-266-2187
RTechEmail: ipmanagement@amazon.com
RTechRef: https://rdap.arin.net/registry/entity/AC6-ORG-ARIN

#
# ARIN WHOIS data and services are subject to the Terms of Use
# available at: https://www.arin.net/whois_tou.html
#
# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
#
# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
#

Caltech.edu Domain Registration and Settings

WHOIS

WHOIS Lookup Tool

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
US

Administrative Contact:
Domain Admin
California Institute of Technology
1200 E. California Blvd.
MS 1-10
Pasadena, CA 91125
US
+1.6263953500
noc@caltech.edu

Technical Contact:

California Institute of Technology
1200 E. California Blvd.
MS 1-10
Pasadena, CA 91125
US
+1.6263953500
noc@caltech.edu

Name Servers:
TYBALT.CALTECH.EDU
MERCUTIO.NI.CALTECH.EDU
NS5.CAPNET.STATE.TX.US
TEPID.NI.CALTECH.EDU
NSX.LBL.GOV

Domain record activated: 06-Jan-1986
Domain record last updated: 25-Mar-2021
Domain expires: 31-Jul-2021

DNS Records

DNS Lookup Tool

Host	A Record	TTL

Host	MX Record	Priority	TTL

Host	NS Record	TTL

Host	TXT Record	TTL

Caltech.edu HTML Check

HTML Validation Tool

Errors

A “meta” element with an “http-equiv” attribute whose value is “X-UA-Compatible” must have a “content” attribute with the value “IE=edge”.

A document must not include both a “meta” element with an “http-equiv” attribute whose value is “content-type”, and a “meta” element with a “charset” attribute.

Attribute “href” not allowed on element “div” at this point.

Bad value “100%” for attribute “width” on element “iframe”: Expected a digit but saw “%” instead.

Bad value “300px” for attribute “height” on element “iframe”: Expected a digit but saw “p” instead.

The “frameborder” attribute on the “iframe” element is obsolete. Use CSS instead.

Element “ul” not allowed as child of element “h1” in this context. (Suppressing further errors from this subtree.)

Element “ul” not allowed as child of element “span” in this context. (Suppressing further errors from this subtree.)

Warnings

The “type” attribute for the “style” element is not needed and should be omitted.

The “type” attribute is unnecessary for JavaScript resources.

Caltech.edu Desktop Performance

Last tested: 06/13/2016

Desktop Speed

58%

Enable compression

Optimize images

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Minify CSS

Minify JavaScript

Leverage browser caching

Desktop Resource Breakdown

Total Resources	96
Number of Hosts	11
Static Resources	65
JavaScript Resources	22
CSS Resources	23

Caltech.edu Mobile Insights

Last tested: 12/03/2019

Mobile Usability

99%

Size tap targets appropriately

Mobile Speed

58%

Avoid landing page redirects

Leverage browser caching

Reduce server response time

Eliminate render-blocking JavaScript and CSS in above-the-fold content

Optimize images

Minify JavaScript

Enable compression

Mobile Resource Breakdown

Total Resources	142
Number of Hosts	9
Static Resources	39
JavaScript Resources	20
CSS Resources	4

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Caltech.edu Home | www.caltech.edu

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

Caltech.edu Overview

Caltech.edu Rank Summary

Caltech.edu Website Safety

Caltech.edu Rank History

Caltech.edu Hosting Information

Caltech.edu Domain Registration and Settings

Caltech.edu HTML Check

Caltech.edu Desktop Performance

Caltech.edu Mobile Insights

Caltech.edu Similar Audits

Caltech.edu Common Typos