Report Summary

  • 63

    Performance

    Renders faster than
    77% of other websites

  • 84

    Accessibility

    Visual factors better than
    that of 57% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

Page Load Speed

5.3 sec in total

First Response

472 ms

Resources Loaded

4.1 sec

Page Rendered

725 ms

scw.ucsd.edu screenshot

About Website

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Key Findings

We analyzed Scw.ucsd.edu page load time and found that the first response time was 472 ms and then it took 4.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 70% of websites can load faster.

Performance Metrics

scw.ucsd.edu performance score

63

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.1 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.2 s

23/100

25%

SI (Speed Index)

Value6.6 s

37/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.2 s

74/100

10%

Network Requests Diagram

scw.ucsd.edu

472 ms

ksdt.ucsd.edu

609 ms

style.css

131 ms

font-awesome.min.css

37 ms

jquery.js

397 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Scw.ucsd.edu, 16% (11 requests) were made to Ksdt.ucsd.edu and 9% (6 requests) were made to Abs.twimg.com. The less responsive or slowest element that took the longest time to load (1.3 sec) relates to the external source Connect.facebook.net.

Page Optimization Overview & Recommendations

Page size can be reduced by 695.7 kB (68%)

Content Size

1.0 MB

After Optimization

323.8 kB

In fact, the total size of Scw.ucsd.edu main page is 1.0 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. 60% of websites need less resources to load. CSS take 490.6 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 53.1 kB

  • Original 64.3 kB
  • After minification 59.1 kB
  • After compression 11.3 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 53.1 kB or 82% of the original size.

Image Optimization

-1%

Potential reduce by 784 B

  • Original 70.6 kB
  • After minification 69.9 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. Scw Ucsd images are well optimized though.

JavaScript Optimization

-62%

Potential reduce by 244.2 kB

  • Original 393.9 kB
  • After minification 393.2 kB
  • After compression 149.7 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 244.2 kB or 62% of the original size.

CSS Optimization

-81%

Potential reduce by 397.6 kB

  • Original 490.6 kB
  • After minification 486.7 kB
  • After compression 93.0 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. Scw.ucsd.edu needs all CSS files to be minified and compressed as it can save up to 397.6 kB or 81% of the original size.

Requests Breakdown

Number of requests can be reduced by 41 (72%)

Requests Now

57

After Optimization

16

The browser has sent 57 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Scw 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 25 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

scw.ucsd.edu accessibility score

84

Accessibility Issues

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

High

[role] values are not valid

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

High

Links do not have a discernible name

Best Practices

scw.ucsd.edu best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

scw.ucsd.edu SEO score

86

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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

High

Document uses legible font sizes

Language and Encoding

  • Language Detected

    EN

  • Language Claimed

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Scw.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 Scw.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.

Social Sharing Optimization

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