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Report Summary

  • 0

    Performance

  • 0

    Accessibility

  • 0

    Best Practices

  • 0

    SEO

crbs.ucsd.edu

Center for Research in Biological Systems - Home

Page Load Speed

2.7 sec in total

First Response

976 ms

Resources Loaded

1.6 sec

Page Rendered

123 ms

crbs.ucsd.edu screenshot

About Website

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Key Findings

We analyzed Crbs.ucsd.edu page load time and found that the first response time was 976 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

crbs.ucsd.edu performance score

0

Network Requests Diagram

crbs.ucsd.edu

976 ms

main.css

144 ms

background.jpg

142 ms

backgroundblue3.jpg

144 ms

crbsbannerE.jpg

349 ms

Our browser made a total of 13 requests to load all elements on the main page. We found that all of those requests were addressed to Crbs.ucsd.edu and no external sources were called. The less responsive or slowest element that took the longest time to load (976 ms) belongs to the original domain Crbs.ucsd.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 93.2 kB (25%)

Content Size

378.5 kB

After Optimization

285.4 kB

  • HTML
  • Images
  • CSS

In fact, the total size of Crbs.ucsd.edu main page is 378.5 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. 15% of websites need less resources to load. Images take 361.3 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 6.7 kB

  • Original 9.2 kB
  • After minification 6.0 kB
  • After compression 2.5 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 3.2 kB, which is 34% 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 6.7 kB or 73% of the original size.

Image Optimization

-22%

Potential reduce by 79.7 kB

  • Original 361.3 kB
  • After minification 281.6 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. Obviously, Crbs Ucsd needs image optimization as it can save up to 79.7 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

CSS Optimization

-84%

Potential reduce by 6.7 kB

  • Original 8.0 kB
  • After minification 4.4 kB
  • After compression 1.2 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. Crbs.ucsd.edu needs all CSS files to be minified and compressed as it can save up to 6.7 kB or 84% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

  • Images
  • CSS

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Crbs Ucsd. According to our analytics all requests are already optimized.

Network Requests Diagram

crbs.ucsd.edu

crbs.ucsd.edu

976 ms

main.css

main.css

144 ms

background.jpg

background.jpg

142 ms

backgroundblue3.jpg

backgroundblue3.jpg

144 ms

crbsbannerE.jpg

crbsbannerE.jpg

349 ms

menugreygradient3.jpg

menugreygradient3.jpg

213 ms

cbuttonmenu.jpg

cbuttonmenu.jpg

431 ms

bluegradient3.jpg

bluegradient3.jpg

216 ms

UCSD.jpg

UCSD.jpg

350 ms

button-xhtml.png

button-xhtml.png

280 ms

button-css.png

button-css.png

352 ms

button-wai.png

button-wai.png

356 ms

print.css

print.css

71 ms

SEO Factors

crbs.ucsd.edu SEO score

0

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Crbs.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 Crbs.ucsd.edu main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

crbs.ucsd.edu

Open Graph description is not detected on the main page of Crbs 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: