Tools & Wizards About Us
dementia.ion.ucl.ac.uk screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    77% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

dementia.ion.ucl.ac.uk

Dementia Research Centre | Dementia Research Centre - UCL – University College London

Page Load Speed

2.4 sec in total

First Response

247 ms

Resources Loaded

1.9 sec

Page Rendered

207 ms

dementia.ion.ucl.ac.uk screenshot

About Website

Visit dementia.ion.ucl.ac.uk now to see the best up-to-date Dementia Ion UCL content for United Kingdom and also check out these interesting facts you probably never knew about dementia.ion.ucl.ac.uk

The UCL Dementia Research Centre is a hub for patient-centred research into dementias. As well as clinical studies and trials in Alzheimer’s disease and other common causes of dementia, we have partic...

Visit dementia.ion.ucl.ac.uk

Key Findings

We analyzed Dementia.ion.ucl.ac.uk page load time and found that the first response time was 247 ms and then it took 2.1 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.

Performance Metrics

dementia.ion.ucl.ac.uk performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.9 s

25/100

10%

LCP (Largest Contentful Paint)

Value4.7 s

33/100

25%

SI (Speed Index)

Value5.9 s

49/100

10%

TBT (Total Blocking Time)

Value80 ms

99/100

30%

CLS (Cumulative Layout Shift)

Value0.068

96/100

15%

TTI (Time to Interactive)

Value7.9 s

44/100

10%

Network Requests Diagram

dementia.ion.ucl.ac.uk

247 ms

293 ms

281 ms

font-awesome.min.css

129 ms

screen.min.css

141 ms

Our browser made a total of 82 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Dementia.ion.ucl.ac.uk, 46% (38 requests) were made to Ucl.ac.uk and 44% (36 requests) were made to Cdn.ucl.ac.uk. The less responsive or slowest element that took the longest time to load (797 ms) relates to the external source Ucl.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 87.1 kB (13%)

Content Size

651.5 kB

After Optimization

564.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Dementia.ion.ucl.ac.uk main page is 651.5 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. 55% of websites need less resources to load. Images take 424.8 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 57.2 kB

  • Original 71.4 kB
  • After minification 68.3 kB
  • After compression 14.2 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 57.2 kB or 80% of the original size.

Image Optimization

-6%

Potential reduce by 27.4 kB

  • Original 424.8 kB
  • After minification 397.4 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. Dementia Ion UCL images are well optimized though.

JavaScript Optimization

-2%

Potential reduce by 2.4 kB

  • Original 124.3 kB
  • After minification 124.2 kB
  • After compression 121.9 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. This website has mostly compressed JavaScripts.

CSS Optimization

-0%

Potential reduce by 89 B

  • Original 31.0 kB
  • After minification 31.0 kB
  • After compression 31.0 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. Dementia.ion.ucl.ac.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 57 (73%)

Requests Now

78

After Optimization

21

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 78 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Dementia Ion UCL. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 20 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

dementia.ion.ucl.ac.uk

dementia.ion.ucl.ac.uk

247 ms

293 ms

281 ms

font-awesome.min.css

font-awesome.min.css

129 ms

screen.min.css

screen.min.css

141 ms

brightpink.min.css

brightpink.min.css

167 ms

uclSearch.min.css

uclSearch.min.css

162 ms

system.base.css

system.base.css

180 ms

system.messages.css

system.messages.css

180 ms

field.css

field.css

168 ms

node.css

node.css

241 ms

ucl-culture-feed-panes.css

ucl-culture-feed-panes.css

192 ms

views.css

views.css

176 ms

entity_embed.css

entity_embed.css

290 ms

media_wysiwyg.base.css

media_wysiwyg.base.css

319 ms

ctools.css

ctools.css

339 ms

panels.css

panels.css

329 ms

admin_theme.css

admin_theme.css

368 ms

eu_cookie_compliance.css

eu_cookie_compliance.css

398 ms

field_collection.theme.css

field_collection.theme.css

387 ms

cross.css

cross.css

439 ms

e39e0ed4872d6f618f3ae832e880c679.css

e39e0ed4872d6f618f3ae832e880c679.css

439 ms

google_tag.script.js

google_tag.script.js

797 ms

jquery.min.js

jquery.min.js

25 ms

jquery-extend-3.4.0.js

jquery-extend-3.4.0.js

501 ms

jquery-html-prefilter-3.5.0-backport.js

jquery-html-prefilter-3.5.0-backport.js

478 ms

jquery.once.js

jquery.once.js

531 ms

drupal.js

drupal.js

546 ms

modernizr-custom.js

modernizr-custom.js

176 ms

cuttingTheMustard.js

cuttingTheMustard.js

162 ms

jquery.cookie-1.4.1.min.js

jquery.cookie-1.4.1.min.js

582 ms

require.min.js

require.min.js

157 ms

form-single-submit.js

form-single-submit.js

584 ms

eu_cookie_compliance_hooks.js

eu_cookie_compliance_hooks.js

631 ms

embed.js

embed.js

681 ms

main.js

main.js

157 ms

platform.js

platform.js

29 ms

media_wysiwyg.filter.js

media_wysiwyg.filter.js

681 ms

eu_cookie_compliance.js

eu_cookie_compliance.js

652 ms

print.min.css

print.min.css

16 ms

widgets.js

widgets.js

54 ms

sdk.js

sdk.js

54 ms

close.png

close.png

49 ms

ucl-logo.svg

ucl-logo.svg

48 ms

blank.gif

blank.gif

48 ms

twitter-x.png

twitter-x.png

48 ms

35x35xfacebook.png.pagespeed.ic.-VUStBF1gm.png

35x35xfacebook.png.pagespeed.ic.-VUStBF1gm.png

46 ms

35x35xyoutube-icon-square.png.pagespeed.ic.GcRcZjQawu.png

35x35xyoutube-icon-square.png.pagespeed.ic.GcRcZjQawu.png

48 ms

35x35xsoundcloud.png.pagespeed.ic.BdtBaqtDmd.jpg

35x35xsoundcloud.png.pagespeed.ic.BdtBaqtDmd.jpg

65 ms

35x35xflickr.png.pagespeed.ic.KdAnMQjbrP.png

35x35xflickr.png.pagespeed.ic.KdAnMQjbrP.png

66 ms

35x35xinstagram-badge.png.pagespeed.ic.OPAzj9OMyV.png

35x35xinstagram-badge.png.pagespeed.ic.OPAzj9OMyV.png

65 ms

tiktok.png

tiktok.png

65 ms

adapt_news_schott_keshavan_2024.png

adapt_news_schott_keshavan_2024.png

130 ms

drc_teaser_about_ucl.jpg

drc_teaser_about_ucl.jpg

129 ms

drc_teaser_cogn_disorders_ucl.jpg

drc_teaser_cogn_disorders_ucl.jpg

133 ms

drc_teaser_info_ucl.jpg

drc_teaser_info_ucl.jpg

102 ms

drc_teaser_research_ucl.jpg

drc_teaser_research_ucl.jpg

128 ms

drc_teaser_work_study_ucl.jpg

drc_teaser_work_study_ucl.jpg

177 ms

drc_teaser_support_ucl.jpg

drc_teaser_support_ucl.jpg

223 ms

drc_green_impact_gold_logo_sml.png

drc_green_impact_gold_logo_sml.png

244 ms

athena_swan_silver_award_logo.png

athena_swan_silver_award_logo.png

251 ms

verticalSpriteIncTwitterX.png

verticalSpriteIncTwitterX.png

58 ms

edit.gif

edit.gif

56 ms

hero_image_1.jpg

hero_image_1.jpg

365 ms

general.js

general.js

55 ms

tabs.js

tabs.js

57 ms

searchWithAutoComplete.js

searchWithAutoComplete.js

55 ms

carousel.js

carousel.js

55 ms

map.js

map.js

59 ms

lightbox.js

lightbox.js

55 ms

og.js

og.js

57 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

58 ms

sdk.js

sdk.js

12 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

35 ms

settings

settings

102 ms

jquery-no-conflict.js

jquery-no-conflict.js

29 ms

ajax-loader.gif

ajax-loader.gif

211 ms

jquery-2.1.1.min.js

jquery-2.1.1.min.js

14 ms

all-site-no-ga.min.js

all-site-no-ga.min.js

17 ms

owl.carousel.min.js

owl.carousel.min.js

15 ms

mob-nav.png

mob-nav.png

17 ms

fastclick.min.js

fastclick.min.js

21 ms

Accessibility Review

dementia.ion.ucl.ac.uk accessibility score

100

Accessibility Issues

Best Practices

dementia.ion.ucl.ac.uk 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

dementia.ion.ucl.ac.uk SEO score

77

Search Engine Optimization Advices

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Links do not have descriptive text

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

High

Tap targets are not sized appropriately

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 Dementia.ion.ucl.ac.uk 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 Dementia.ion.ucl.ac.uk 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

dementia.ion.ucl.ac.uk

Open Graph data is detected on the main page of Dementia Ion UCL. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: