Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 89% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 97

    SEO

    Google-friendlier than
    91% of websites

uab.cat

Universitat Autònoma de Barcelona - UAB Barcelona

Page Load Speed

5 sec in total

First Response

453 ms

Resources Loaded

4.2 sec

Page Rendered

282 ms

uab.cat screenshot

About Website

Visit uab.cat now to see the best up-to-date UAB content for Spain and also check out these interesting facts you probably never knew about uab.cat

La UAB és una universitat jove, pública i capdavantera. Líder als rànquings i referent en recerca. Barcelonina, catalana i internacional. Transformadora, solidària, diversa, sostenible i participativa...

Visit uab.cat

Key Findings

We analyzed Uab.cat page load time and found that the first response time was 453 ms and then it took 4.5 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

uab.cat performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.5 s

6/100

10%

LCP (Largest Contentful Paint)

Value23.9 s

0/100

25%

SI (Speed Index)

Value10.4 s

8/100

10%

TBT (Total Blocking Time)

Value4,790 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.425

22/100

15%

TTI (Time to Interactive)

Value13.8 s

10/100

10%

Network Requests Diagram

uab.cat

453 ms

www.uab.cat

888 ms

estilo.css

889 ms

mqueries.css

337 ms

fontello.css

227 ms

Our browser made a total of 84 requests to load all elements on the main page. We found that 93% of them (78 requests) were addressed to the original Uab.cat, 2% (2 requests) were made to Google-analytics.com and 1% (1 request) were made to Videosdigitals.uab.es. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Uab.cat.

Page Optimization Overview & Recommendations

Page size can be reduced by 886.5 kB (32%)

Content Size

2.8 MB

After Optimization

1.9 MB

In fact, the total size of Uab.cat main page is 2.8 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. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 92.1 kB

  • Original 118.5 kB
  • After minification 95.5 kB
  • After compression 26.5 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 23.1 kB, which is 19% 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 92.1 kB or 78% of the original size.

Image Optimization

-8%

Potential reduce by 138.3 kB

  • Original 1.8 MB
  • After minification 1.6 MB

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. UAB images are well optimized though.

JavaScript Optimization

-74%

Potential reduce by 500.8 kB

  • Original 676.1 kB
  • After minification 556.9 kB
  • After compression 175.2 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 500.8 kB or 74% of the original size.

CSS Optimization

-86%

Potential reduce by 155.3 kB

  • Original 181.3 kB
  • After minification 145.3 kB
  • After compression 26.0 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. Uab.cat needs all CSS files to be minified and compressed as it can save up to 155.3 kB or 86% of the original size.

Requests Breakdown

Number of requests can be reduced by 17 (22%)

Requests Now

77

After Optimization

60

The browser has sent 77 CSS, Javascripts, AJAX and image requests in order to completely render the main page of UAB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

uab.cat accessibility score

96

Accessibility Issues

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

uab.cat best practices score

75

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

User Experience

Impact

Issue

High

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

uab.cat SEO score

97

Search Engine Optimization Advices

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

High

Tap targets are not sized appropriately

Language and Encoding

  • Language Detected

    CA

  • Language Claimed

    CA

  • Encoding

    ISO-8859-15

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Uab.cat can be misinterpreted by Google and other search engines. Our service has detected that Catalan is used on the page, and it matches the claimed language. Our system also found out that Uab.cat main page’s claimed encoding is iso-8859-15. 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

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