Tools & Wizards About Us
chemengdayuk.co.uk screenshot

Report Summary

  • 64

    Performance

    Renders faster than
    77% of other websites

  • 99

    Accessibility

    Visual factors better than
    that of 96% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

chemengdayuk.co.uk

ChemEngDayUK 2022 | UCL Department of Chemical Engineering - UCL – University College London

Page Load Speed

2.9 sec in total

First Response

354 ms

Resources Loaded

2.3 sec

Page Rendered

293 ms

chemengdayuk.co.uk screenshot

About Website

Welcome to chemengdayuk.co.uk homepage info - get ready to check Chem Eng DayUK best content right away, or after learning these important things about chemengdayuk.co.uk

We are delighted to announce that ChemEngDayUK 2022 will be hosted jointly by the UCL Department of Chemical Engineering and the UCL Department of Biochemical Engineering between 7-8 April 2022. The e...

Visit chemengdayuk.co.uk

Key Findings

We analyzed Chemengdayuk.co.uk page load time and found that the first response time was 354 ms and then it took 2.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

chemengdayuk.co.uk performance score

64

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

30/100

10%

LCP (Largest Contentful Paint)

Value4.4 s

38/100

25%

SI (Speed Index)

Value6.2 s

44/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.067

97/100

15%

TTI (Time to Interactive)

Value8.5 s

38/100

10%

Network Requests Diagram

chemengdayuk-2022

354 ms

font-awesome.min.css

143 ms

screen.min.css

159 ms

brightgreen.min.css

164 ms

uclSearch.min.css

174 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Chemengdayuk.co.uk, 43% (33 requests) were made to Ucl.ac.uk and 3% (2 requests) were made to Platform.twitter.com. The less responsive or slowest element that took the longest time to load (833 ms) relates to the external source Ucl.ac.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 107.2 kB (9%)

Content Size

1.2 MB

After Optimization

1.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Chemengdayuk.co.uk main page is 1.2 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. 65% of websites need less resources to load. Images take 945.4 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 70.2 kB

  • Original 90.3 kB
  • After minification 87.8 kB
  • After compression 20.1 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 70.2 kB or 78% of the original size.

Image Optimization

-4%

Potential reduce by 34.6 kB

  • Original 945.4 kB
  • After minification 910.8 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. Chem Eng DayUK 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 31.1 kB
  • After minification 31.1 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. Chemengdayuk.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 58 (78%)

Requests Now

74

After Optimization

16

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 74 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Chem Eng DayUK. 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

chemengdayuk-2022

chemengdayuk-2022

354 ms

font-awesome.min.css

font-awesome.min.css

143 ms

screen.min.css

screen.min.css

159 ms

brightgreen.min.css

brightgreen.min.css

164 ms

uclSearch.min.css

uclSearch.min.css

174 ms

system.base.css

system.base.css

173 ms

system.messages.css

system.messages.css

177 ms

field.css

field.css

201 ms

node.css

node.css

191 ms

ucl-culture-feed-panes.css

ucl-culture-feed-panes.css

178 ms

views.css

views.css

195 ms

entity_embed.css

entity_embed.css

327 ms

media_wysiwyg.base.css

media_wysiwyg.base.css

348 ms

ctools.css

ctools.css

351 ms

panels.css

panels.css

337 ms

admin_theme.css

admin_theme.css

335 ms

eu_cookie_compliance.css

eu_cookie_compliance.css

365 ms

field_collection.theme.css

field_collection.theme.css

473 ms

cross.css

cross.css

465 ms

e39e0ed4872d6f618f3ae832e880c679.css

e39e0ed4872d6f618f3ae832e880c679.css

461 ms

google_tag.script.js

google_tag.script.js

833 ms

jquery.min.js

jquery.min.js

22 ms

jquery-extend-3.4.0.js

jquery-extend-3.4.0.js

458 ms

jquery-html-prefilter-3.5.0-backport.js

jquery-html-prefilter-3.5.0-backport.js

482 ms

jquery.once.js

jquery.once.js

590 ms

drupal.js

drupal.js

556 ms

modernizr-custom.js

modernizr-custom.js

172 ms

cuttingTheMustard.js

cuttingTheMustard.js

174 ms

jquery.cookie-1.4.1.min.js

jquery.cookie-1.4.1.min.js

608 ms

require.min.js

require.min.js

181 ms

form-single-submit.js

form-single-submit.js

608 ms

eu_cookie_compliance_hooks.js

eu_cookie_compliance_hooks.js

680 ms

embed.js

embed.js

673 ms

main.js

main.js

172 ms

platform.js

platform.js

21 ms

media_wysiwyg.filter.js

media_wysiwyg.filter.js

725 ms

eu_cookie_compliance.js

eu_cookie_compliance.js

794 ms

print.min.css

print.min.css

14 ms

widgets.js

widgets.js

17 ms

sdk.js

sdk.js

16 ms

sdk.js

sdk.js

11 ms

80 ms

close.png

close.png

69 ms

ucl-logo.svg

ucl-logo.svg

70 ms

blank.gif

blank.gif

70 ms

twitter-x.png

twitter-x.png

68 ms

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

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

68 ms

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

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

68 ms

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

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

71 ms

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

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

74 ms

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

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

72 ms

tiktok.png

tiktok.png

72 ms

chemengdayuk2022programmecover_0.png

chemengdayuk2022programmecover_0.png

140 ms

professor-claire-adjiman-200-200.png

professor-claire-adjiman-200-200.png

140 ms

dr-alexander-sandy-douglas-200-200.png

dr-alexander-sandy-douglas-200-200.png

141 ms

chemengdayukteaser-1_0.png

chemengdayukteaser-1_0.png

152 ms

chemengdayukteaser-2_0.png

chemengdayukteaser-2_0.png

156 ms

verticalSpriteIncTwitterX.png

verticalSpriteIncTwitterX.png

57 ms

edit.gif

edit.gif

58 ms

chemengdayuk2022-banner_0.png

chemengdayuk2022-banner_0.png

809 ms

general.js

general.js

56 ms

tabs.js

tabs.js

56 ms

searchWithAutoComplete.js

searchWithAutoComplete.js

58 ms

carousel.js

carousel.js

58 ms

map.js

map.js

57 ms

lightbox.js

lightbox.js

57 ms

og.js

og.js

58 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

16 ms

jquery-no-conflict.js

jquery-no-conflict.js

46 ms

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

widget_iframe.2f70fb173b9000da126c79afe2098f02.html

22 ms

jquery-2.1.1.min.js

jquery-2.1.1.min.js

18 ms

settings

settings

99 ms

all-site-no-ga.min.js

all-site-no-ga.min.js

20 ms

owl.carousel.min.js

owl.carousel.min.js

34 ms

mob-nav.png

mob-nav.png

14 ms

fastclick.min.js

fastclick.min.js

32 ms

Accessibility Review

chemengdayuk.co.uk accessibility score

99

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

chemengdayuk.co.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

chemengdayuk.co.uk SEO score

91

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

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 Chemengdayuk.co.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 Chemengdayuk.co.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

chemengdayuk.co.uk

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