Tools & Wizards About Us
crai.ub.edu screenshot

Report Summary

  • 40

    Performance

    Renders faster than
    59% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

crai.ub.edu

Centre de Recursos per a l'Aprenentatge i la Investigació (CRAI UB)

Page Load Speed

6.6 sec in total

First Response

621 ms

Resources Loaded

4.9 sec

Page Rendered

1.1 sec

crai.ub.edu screenshot

About Website

Visit crai.ub.edu now to see the best up-to-date CRAI UB content for Spain and also check out these interesting facts you probably never knew about crai.ub.edu

Integra els serveis de biblioteca, suport a la docència i a la recerca, i està format pels CRAI biblioteques i les unitats tècniques i pel CeDocBiV i el CEDI.

Visit crai.ub.edu

Key Findings

We analyzed Crai.ub.edu page load time and found that the first response time was 621 ms and then it took 6 sec to load all DOM resources and completely render a web page. This is a poor result, as 80% of websites can load faster.

Performance Metrics

crai.ub.edu performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value11.7 s

0/100

10%

LCP (Largest Contentful Paint)

Value30.3 s

0/100

25%

SI (Speed Index)

Value14.7 s

1/100

10%

TBT (Total Blocking Time)

Value280 ms

81/100

30%

CLS (Cumulative Layout Shift)

Value0.021

100/100

15%

TTI (Time to Interactive)

Value20.2 s

2/100

10%

Network Requests Diagram

crai.ub.edu

621 ms

js

64 ms

slick.css

260 ms

slick.module.css

350 ms

ajax-progress.module.css

400 ms

Our browser made a total of 163 requests to load all elements on the main page. We found that 94% of them (153 requests) were addressed to the original Crai.ub.edu, 2% (3 requests) were made to Static.addtoany.com and 1% (2 requests) were made to Cdnjs.cloudflare.com. The less responsive or slowest element that took the longest time to load (1.8 sec) belongs to the original domain Crai.ub.edu.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.6 MB (17%)

Content Size

9.9 MB

After Optimization

8.3 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Crai.ub.edu main page is 9.9 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. 50% of websites need less resources to load. Images take 8.8 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 70.3 kB

  • Original 85.4 kB
  • After minification 80.9 kB
  • After compression 15.1 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 70.3 kB or 82% of the original size.

Image Optimization

-9%

Potential reduce by 802.7 kB

  • Original 8.8 MB
  • After minification 8.0 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. CRAI UB images are well optimized though.

JavaScript Optimization

-64%

Potential reduce by 273.3 kB

  • Original 427.4 kB
  • After minification 420.0 kB
  • After compression 154.1 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 273.3 kB or 64% of the original size.

CSS Optimization

-84%

Potential reduce by 501.2 kB

  • Original 599.9 kB
  • After minification 543.1 kB
  • After compression 98.7 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. Crai.ub.edu needs all CSS files to be minified and compressed as it can save up to 501.2 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 148 (95%)

Requests Now

156

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 156 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CRAI UB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 53 to 1 for JavaScripts and from 81 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

crai.ub.edu

crai.ub.edu

621 ms

js

js

64 ms

slick.css

slick.css

260 ms

slick.module.css

slick.module.css

350 ms

ajax-progress.module.css

ajax-progress.module.css

400 ms

align.module.css

align.module.css

391 ms

autocomplete-loading.module.css

autocomplete-loading.module.css

382 ms

fieldgroup.module.css

fieldgroup.module.css

394 ms

container-inline.module.css

container-inline.module.css

396 ms

clearfix.module.css

clearfix.module.css

439 ms

details.module.css

details.module.css

471 ms

hidden.module.css

hidden.module.css

480 ms

item-list.module.css

item-list.module.css

482 ms

js.module.css

js.module.css

483 ms

nowrap.module.css

nowrap.module.css

487 ms

position-container.module.css

position-container.module.css

528 ms

progress.module.css

progress.module.css

558 ms

reset-appearance.module.css

reset-appearance.module.css

567 ms

resize.module.css

resize.module.css

573 ms

sticky-header.module.css

sticky-header.module.css

574 ms

system-status-counter.css

system-status-counter.css

576 ms

system-status-report-counters.css

system-status-report-counters.css

615 ms

system-status-report-general-info.css

system-status-report-general-info.css

646 ms

tabledrag.module.css

tabledrag.module.css

656 ms

tablesort.module.css

tablesort.module.css

664 ms

tree-child.module.css

tree-child.module.css

666 ms

blazy.css

blazy.css

664 ms

blazy.loading.css

blazy.loading.css

704 ms

views.module.css

views.module.css

733 ms

eu_cookie_compliance.bare.css

eu_cookie_compliance.bare.css

743 ms

slick-theme.css

slick-theme.css

755 ms

addtoany.css

addtoany.css

764 ms

back_to_top.css

back_to_top.css

754 ms

calendar.css

calendar.css

792 ms

calendar_multiday.css

calendar_multiday.css

822 ms

ckeditor.indentblock.css

ckeditor.indentblock.css

833 ms

all.min.css

all.min.css

1018 ms

page.js

page.js

65 ms

MathJax.js

MathJax.js

50 ms

v4-shims.min.css

v4-shims.min.css

770 ms

accordion.frontend.css

accordion.frontend.css

603 ms

slick.theme.css

slick.theme.css

540 ms

slick.theme--full.css

slick.theme--full.css

537 ms

slick.theme--fullwidth.css

slick.theme--fullwidth.css

537 ms

variables.css

variables.css

560 ms

user.css

user.css

586 ms

progress.css

progress.css

612 ms

node.css

node.css

579 ms

book.css

book.css

562 ms

contextual.css

contextual.css

566 ms

feed-icon.css

feed-icon.css

592 ms

field.css

field.css

617 ms

header.css

header.css

619 ms

help.css

help.css

587 ms

icons.css

icons.css

561 ms

image-button.css

image-button.css

568 ms

item-list.css

item-list.css

590 ms

list-group.css

list-group.css

615 ms

media.css

media.css

621 ms

page.css

page.css

590 ms

search-form.css

search-form.css

563 ms

shortcut.css

shortcut.css

570 ms

sidebar.css

sidebar.css

588 ms

site-footer.css

site-footer.css

614 ms

skip-link.css

skip-link.css

618 ms

table.css

table.css

593 ms

tabledrag.css

tabledrag.css

567 ms

tableselect.css

tableselect.css

572 ms

tablesort-indicator.css

tablesort-indicator.css

588 ms

ui.widget.css

ui.widget.css

613 ms

tabs.css

tabs.css

608 ms

toolbar.css

toolbar.css

595 ms

vertical-tabs.css

vertical-tabs.css

567 ms

views.css

views.css

574 ms

webform.css

webform.css

574 ms

ui-dialog.css

ui-dialog.css

569 ms

bootstrap.min.css

bootstrap.min.css

768 ms

style.css

style.css

693 ms

victor.css

victor.css

635 ms

colors.css

colors.css

554 ms

bootstrap-icons.css

bootstrap-icons.css

548 ms

messages-white.css

messages-white.css

548 ms

affix.css

affix.css

582 ms

bootstrap.bundle.min.js

bootstrap.bundle.min.js

732 ms

blazy.polyfill.min.js

blazy.polyfill.min.js

629 ms

jquery.min.js

jquery.min.js

753 ms

element.matches.js

element.matches.js

663 ms

blazy.classlist.min.js

blazy.classlist.min.js

657 ms

blazy.promise.min.js

blazy.promise.min.js

709 ms

blazy.raf.min.js

blazy.raf.min.js

707 ms

array.find.js

array.find.js

700 ms

es6-promise.auto.min.js

es6-promise.auto.min.js

673 ms

object.assign.js

object.assign.js

657 ms

once.min.js

once.min.js

671 ms

ca_i7ttL0saslSooPQ_CgEZNiR2Zk0yKT2I2n-PwT63VWw.js

ca_i7ttL0saslSooPQ_CgEZNiR2Zk0yKT2I2n-PwT63VWw.js

720 ms

drupalSettingsLoader.js

drupalSettingsLoader.js

707 ms

drupal.js

drupal.js

702 ms

drupal.init.js

drupal.init.js

675 ms

debounce.js

debounce.js

641 ms

dblazy.min.js

dblazy.min.js

670 ms

blazy.once.min.js

blazy.once.min.js

713 ms

blazy.sanitizer.min.js

blazy.sanitizer.min.js

709 ms

blazy.dom.min.js

blazy.dom.min.js

698 ms

blazy.base.min.js

blazy.base.min.js

675 ms

blazy.dataset.min.js

blazy.dataset.min.js

652 ms

blazy.viewport.min.js

blazy.viewport.min.js

673 ms

blazy.xlazy.min.js

blazy.xlazy.min.js

715 ms

blazy.observer.min.js

blazy.observer.min.js

706 ms

blazy.loading.min.js

blazy.loading.min.js

698 ms

blazy.webp.min.js

blazy.webp.min.js

676 ms

blazy.min.js

blazy.min.js

659 ms

bio.min.js

bio.min.js

635 ms

slick.min.js

slick.min.js

753 ms

bio.media.min.js

bio.media.min.js

640 ms

css2

css2

39 ms

blazy.drupal.min.js

blazy.drupal.min.js

622 ms

blazy.load.min.js

blazy.load.min.js

603 ms

slick.vanilla.min.js

slick.vanilla.min.js

588 ms

addtoany.js

addtoany.js

606 ms

back_to_top.js

back_to_top.js

621 ms

google_analytics.js

google_analytics.js

541 ms

barrio.js

barrio.js

534 ms

popper.min.js

popper.min.js

631 ms

KFOmCnqEu92Fr1Me5Q.ttf

KFOmCnqEu92Fr1Me5Q.ttf

81 ms

KFOlCnqEu92Fr1MmWUlvAw.ttf

KFOlCnqEu92Fr1MmWUlvAw.ttf

83 ms

global.js

global.js

651 ms

js.cookie.min.js

js.cookie.min.js

553 ms

eu_cookie_compliance.min.js

eu_cookie_compliance.min.js

639 ms

accordion.frontend.min.js

accordion.frontend.min.js

556 ms

config.js

config.js

556 ms

setup.js

setup.js

630 ms

slick.load.min.js

slick.load.min.js

637 ms

affix.js

affix.js

620 ms

fa-brands-400.ttf

fa-brands-400.ttf

693 ms

fa-regular-400.ttf

fa-regular-400.ttf

689 ms

fa-solid-900.ttf

fa-solid-900.ttf

924 ms

slick.woff

slick.woff

682 ms

crai_20_1%402x_0.png

crai_20_1%402x_0.png

675 ms

primo_logo.png

primo_logo.png

653 ms

twitter-x.svg

twitter-x.svg

675 ms

Horaris%20Estiu%202024_Vitrina_Definitiu.png

Horaris%20Estiu%202024_Vitrina_Definitiu.png

1461 ms

Recursos%20electr%C3%B2nics_Vitrina.png

Recursos%20electr%C3%B2nics_Vitrina.png

1111 ms

20%20Anys_Vitrina.gif

20%20Anys_Vitrina.gif

1346 ms

acces%20en%20linia%20portada.png

acces%20en%20linia%20portada.png

778 ms

prestec%20portada.png

prestec%20portada.png

851 ms

Formaci%C3%B3.png

Formaci%C3%B3.png

961 ms

67f6d140-f6be-4732-97ce-9fe881aea07d.png

67f6d140-f6be-4732-97ce-9fe881aea07d.png

927 ms

mostra%20donatius%20clinic%202.png

mostra%20donatius%20clinic%202.png

974 ms

adhesius0.png

adhesius0.png

1099 ms

element5-digital-jCIMcOpFHig-unsplash.jpg

element5-digital-jCIMcOpFHig-unsplash.jpg

1468 ms

jose-aljovin-JZMdGltAHMo-unsplash.jpg

jose-aljovin-JZMdGltAHMo-unsplash.jpg

1842 ms

thisisengineering-raeng-8yS04veb1TQ-unsplash_0.jpg

thisisengineering-raeng-8yS04veb1TQ-unsplash_0.jpg

1834 ms

quadras_bordes_0.jpg

quadras_bordes_0.jpg

1101 ms

2congres_cat_cuina1_0.jpg

2congres_cat_cuina1_0.jpg

1188 ms

torquatnoto_0.jpg

torquatnoto_0.jpg

1334 ms

Catala%20Poch.png

Catala%20Poch.png

1420 ms

sm.25.html

sm.25.html

16 ms

eso.D0Uc7kY6.js

eso.D0Uc7kY6.js

32 ms

logo-ub-footer.png

logo-ub-footer.png

1366 ms

TeX-AMS-MML_HTMLorMML.js

TeX-AMS-MML_HTMLorMML.js

22 ms

accessibility-menu.js

accessibility-menu.js

135 ms

ajax-loader.gif

ajax-loader.gif

1061 ms

print.css

print.css

90 ms

Accessibility Review

crai.ub.edu accessibility score

96

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

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

crai.ub.edu best practices score

83

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

High

Browser errors were logged to the console

High

Page has valid source maps

SEO Factors

crai.ub.edu SEO score

90

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

    UTF-8

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

crai.ub.edu

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