Caltech.edu Home | www.caltech.edu
The California Institute of Technology aims to expand human knowledge and benefit society through research integrated with education.
Server IP address resolved: Yes
Http response code: 200
Response time: 0.18 sec.
Last Checked: 01/20/2023
Over the time caltech.edu has been ranked as high as 880 in the world, while most of its traffic comes from United States, where it reached as high as 3,229 position.
Caltech.edu receives about 30,279 unique visitors and 83,267 pageviews per day. The estimated value of caltech.edu is 1,090,620 USD. Each unique visitor makes about 2.75 pageviews on average.
Caltech.edu is registered under .EDU top-level domain. Check other websites in .EDU zone.
At the time of the last check (November 28, 2019) caltech.edu has an expired SSL certificate issued by Internet2 (expired on April 15, 2020). Check other websites using SSL certificates issued by Internet2.
According to Google Safe Browsing, Google Safe Search, Symantec and Web of Trust caltech.edu is quite a safe domain.
Mobile-Friendly test indicates that caltech.edu is well optimized for mobile and tablet devices, however website page loading time could be improved.
Audience Geography. Where are caltech.edu visitors located?
| 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 |
| Country | Percent of 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 | Percent of 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% |
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?
| 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% |
| 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% |
| Period | Global Rank | Global Rank Delta |
|---|---|---|
| past 3 months | 8163 | 1881 |
| past month | 8287 | 308 |
| past week | 8039 | 650 |
| yesterday | 10564 | 2170 |
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.
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 ConnectSafe evaluates caltech.edu for any unsafe and insecure content. The results are critical for families with young children.
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.
"caltech.edu" is not a phishing page.
"caltech.edu" does not install unwanted software.
"caltech.edu" does not contain harmfull applications.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.
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.
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.
| 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 |
Not Found
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
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# 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
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# If you see inaccuracies in the results, please report at
# https://www.arin.net/resources/whois_reporting/index.html
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# Copyright 1997-2018, American Registry for Internet Numbers, Ltd.
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-------------------------------------------------------------
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
| Host | A Record | TTL |
|---|
| Host | MX Record | Priority | TTL |
|---|
| Host | NS Record | TTL |
|---|
| Host | TXT Record | TTL |
|---|
Last tested: 06/13/2016
| Total Resources | 96 |
| Number of Hosts | 11 |
| Static Resources | 65 |
| JavaScript Resources | 22 |
| CSS Resources | 23 |
Last tested: 12/03/2019
| Total Resources | 142 |
| Number of Hosts | 9 |
| Static Resources | 39 |
| JavaScript Resources | 20 |
| CSS Resources | 4 |
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