2.8 sec in total
623 ms
2 sec
160 ms
Click here to check amazing Sustain Ucsd content for United States. Otherwise, check out these important facts you probably never knew about sustain.ucsd.edu
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Visit sustain.ucsd.eduWe analyzed Sustain.ucsd.edu page load time and found that the first response time was 623 ms and then it took 2.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.
sustain.ucsd.edu performance score
name
value
score
weighting
Value4.7 s
13/100
10%
Value11.1 s
0/100
25%
Value5.5 s
55/100
10%
Value20 ms
100/100
30%
Value0.812
4/100
15%
Value6.7 s
56/100
10%
623 ms
784 ms
840 ms
672 ms
795 ms
Our browser made a total of 34 requests to load all elements on the main page. We found that 18% of them (6 requests) were addressed to the original Sustain.ucsd.edu, 29% (10 requests) were made to Use.typekit.net and 26% (9 requests) were made to Cdn.ucsd.edu. The less responsive or slowest element that took the longest time to load (840 ms) relates to the external source Cdn.ucsd.edu.
Page size can be reduced by 228.0 kB (28%)
822.4 kB
594.3 kB
In fact, the total size of Sustain.ucsd.edu main page is 822.4 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 25% of websites need less resources to load. Images take 518.3 kB which makes up the majority of the site volume.
Potential reduce by 21.9 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 11.6 kB, which is 43% 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 21.9 kB or 81% of the original size.
Potential reduce by 29.4 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. Sustain Ucsd images are well optimized though.
Potential reduce by 51.2 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 51.2 kB or 41% of the original size.
Potential reduce by 125.5 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. Sustain.ucsd.edu needs all CSS files to be minified and compressed as it can save up to 125.5 kB or 82% of the original size.
Number of requests can be reduced by 12 (50%)
24
12
The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Sustain Ucsd. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 8 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.
sustain.ucsd.edu
623 ms
bootstrap.css
784 ms
base-min.css
840 ms
homepage-wide-min.css
672 ms
modernizr.js
795 ms
jquery.min.js
44 ms
message.js
377 ms
zqx2vjc.js
206 ms
slim-081711.css
6 ms
decorator.js
445 ms
vendor.js
593 ms
base-min.js
520 ms
css
24 ms
sustain.ucsd.edu
102 ms
RecycleMania2016.jpg
448 ms
DavidWoodruff.jpg
577 ms
CNSummit-UCTV.jpg
449 ms
COP21.jpg
497 ms
CCC-winner.jpg
557 ms
sprite_base.png
186 ms
sprite_social.png
181 ms
glyphicons-halflings-regular.woff
220 ms
Hgo13k-tfSpn0qi1SFdUfaCWcynf_cDxXwCLxiixG1c.ttf
8 ms
ga.js
7 ms
KVSoBhzrCzhjzIizNeqz2Ck5az7a_Mahp7A59cHuNQtffHV3gsMdeMJ6Mk6f5Mb.woff
58 ms
HtoYSVzeXRfn1VHNmwd0wQ_KH8H5OYRuB9zzbqrn0ejffH13gsMdeMJ6Mk6f5MS.woff
69 ms
R7UTr_j6EKiw-8hCx-y9gZnF-8KVzEJd8Ea_yRdrgiCffHQ3gsMdeMJ6Mk6f5Mt.woff
99 ms
3NlFWmbzGapCDT6wT1c-yClzS_f72QKyjZmCeruLmQSffHn3gsMdeMJ6Mk6f5gI.woff
118 ms
UWrACyGUIl1fGzfmMmDEwpZb0NaEfi9ah3kOU7DPhSXffOQ3gsMdeMJ6Mk6f5Mt.woff
118 ms
9zKO6bhalZEYr8MPWPJVE2aLdDUev_BG0vDEgIRSiwtffOn3gsMdeMJ6Mk6f5gI.woff
129 ms
zvdMvFFQFe3rltcHlT-wyQ9doPMS27PEb9SA06RJMQvffOV3gsMdeMJ6Mk6f5Mb.woff
128 ms
zLs_Kfu-iwQHHCiEe401Hl1cUPYAYcmqBFpbuZxZXN6ffO13gsMdeMJ6Mk6f5MS.woff
128 ms
__utm.gif
15 ms
p.gif
135 ms
sustain.ucsd.edu accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
ARIA IDs are not unique
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
Some elements have a [tabindex] value greater than 0
sustain.ucsd.edu 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
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
sustain.ucsd.edu SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Sustain.ucsd.edu can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and it matches the claimed language. Our system also found out that Sustain.ucsd.edu 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.
sustain.ucsd.edu
Open Graph description is not detected on the main page of Sustain Ucsd. 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: