4 sec in total
1.2 sec
2.6 sec
167 ms
Visit caltech.com now to see the best up-to-date Caltech content for United States and also check out these interesting facts you probably never knew about caltech.com
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Visit caltech.comWe analyzed Caltech.com page load time and found that the first response time was 1.2 sec and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.
caltech.com performance score
name
value
score
weighting
Value2.8 s
56/100
10%
Value10.1 s
0/100
25%
Value7.9 s
22/100
10%
Value3,870 ms
1/100
30%
Value0.369
29/100
15%
Value18.3 s
3/100
10%
1245 ms
102 ms
70 ms
38 ms
72 ms
Our browser made a total of 52 requests to load all elements on the main page. We found that 69% of them (36 requests) were addressed to the original Caltech.com, 8% (4 requests) were made to Fast.fonts.com and 8% (4 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Caltech.com.
Page size can be reduced by 663.0 kB (41%)
1.6 MB
962.1 kB
In fact, the total size of Caltech.com main page is 1.6 MB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 40% of websites need less resources to load. Images take 764.9 kB which makes up the majority of the site volume.
Potential reduce by 16.0 kB
HTML content can be minified and compressed by a website’s server. The most efficient way is to compress content using GZIP which reduces data amount travelling through the network between server and browser. This page needs HTML code to be minified as it can gain 4.6 kB, which is 22% of the original size. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 16.0 kB or 78% of the original size.
Potential reduce by 11.3 kB
Image size optimization can help to speed up a website loading time. The chart above shows the difference between the size before and after optimization. Caltech images are well optimized though.
Potential reduce by 372.6 kB
It’s better to minify JavaScript in order to improve website performance. The diagram shows the current total size of all JavaScript files against the prospective JavaScript size after its minification and compression. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 372.6 kB or 71% of the original size.
Potential reduce by 263.2 kB
CSS files minification is very important to reduce a web page rendering time. The faster CSS files can load, the earlier a page can be rendered. Caltech.com needs all CSS files to be minified and compressed as it can save up to 263.2 kB or 84% of the original size.
Number of requests can be reduced by 22 (51%)
43
21
The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Caltech. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and from 14 to 1 for CSS and as a result speed up the page load time.
caltech.com
1245 ms
bootstrap.min.css
102 ms
bootstrap-responsive.min.css
70 ms
font-awesome.min.css
38 ms
zetta-menu.css
72 ms
font-awesome.css
73 ms
animate.css
88 ms
style.min.css
87 ms
style.css
110 ms
748a4487-7e13-443d-8ce9-02b7564603a4.css
83 ms
jquery.min.js
43 ms
jquery.min.js
26 ms
responsive-nav.css
110 ms
responsive-nav.js
110 ms
masterslider.css
137 ms
style.css
138 ms
ms-layers-style.css
138 ms
css
38 ms
jquery.min.js
170 ms
jquery.easing.min.js
137 ms
masterslider.min.js
190 ms
bootstrap.min.js
147 ms
site.js
129 ms
3fbbd6b1-cfa7-4ff0-97ea-af1b2c489f15.woff
56 ms
hotjar-69830.js
139 ms
logo.png
19 ms
blank.gif
20 ms
icon_itexpert.png
35 ms
icon_workingsolutions.png
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icon_service.png
35 ms
icon_teeth.png
35 ms
msp501-150x152_alt.jpg
48 ms
BestCos_alt.png
49 ms
Best-Co-2015-Logo.png
68 ms
MSPmentor501_Logo2015_150x150.jpg
216 ms
loading-2.gif
69 ms
banner_1.jpg
96 ms
managedservice+.png
79 ms
btn.gif
80 ms
fontawesome-webfont.woff
589 ms
fontawesome-webfont.woff
2 ms
e2ade8a9-bd48-45e7-95e6-9dc917ba4f74.woff
55 ms
9k-RPmcnxYEPm8CNFsH2gg.woff
11 ms
KT3KS9Aol4WfR6Vas8kNcg.woff
16 ms
wkfQbvfT_02e2IWO3yYueQ.woff
21 ms
BVtM30trf7q_jfqYeHfjtA.woff
21 ms
2a004a53-ac5c-43b3-9eeb-9f74ae4c1609.woff
131 ms
modules-043c1e6abe660c48857202e419ff9d8a.js
28 ms
banner_everspace.jpg
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logo_everspace.png
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visit-data
211 ms
fontawesome-webfont.ttf
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caltech.com accessibility score
Names and labels
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
caltech.com best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
Page has valid source maps
caltech.com SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Image elements do not have [alt] attributes
Mobile Friendly
Make sure your pages are mobile friendly so users don’t have to pinch or zoom in order to read the content pages. [Learn more](https://developers.google.com/search/mobile-sites/).
Impact
Issue
Document uses legible font sizes
Tap targets are not sized appropriately
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Caltech.com can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Caltech.com main page’s claimed encoding is utf-8. Use of this encoding format is the best practice as the main page visitors from all over the world won’t have any issues with symbol transcription.
caltech.com
Open Graph description is not detected on the main page of Caltech. Lack of Open Graph description can be counter-productive for their social media presence, as such a description allows converting a website homepage (or other pages) into good-looking, rich and well-structured posts, when it is being shared on Facebook and other social media. For example, adding the following code snippet into HTML <head> tag will help to represent this web page correctly in social networks: