2.2 sec in total
484 ms
1.6 sec
120 ms
Click here to check amazing Discovery UCL content for United Kingdom. Otherwise, check out these important facts you probably never knew about discovery.ucl.ac.uk
UCL Discovery is UCL's open access repository, showcasing and providing access to UCL research outputs from all UCL disciplines.
Visit discovery.ucl.ac.ukWe analyzed Discovery.ucl.ac.uk page load time and found that the first response time was 484 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.
discovery.ucl.ac.uk performance score
name
value
score
weighting
Value3.6 s
32/100
10%
Value7.6 s
4/100
25%
Value6.2 s
43/100
10%
Value430 ms
65/100
30%
Value0.006
100/100
15%
Value9.1 s
33/100
10%
484 ms
402 ms
640 ms
335 ms
264 ms
Our browser made a total of 41 requests to load all elements on the main page. We found that 37% of them (15 requests) were addressed to the original Discovery.ucl.ac.uk, 15% (6 requests) were made to Platform.twitter.com and 12% (5 requests) were made to Ucl.ac.uk. The less responsive or slowest element that took the longest time to load (766 ms) belongs to the original domain Discovery.ucl.ac.uk.
Page size can be reduced by 985.2 kB (72%)
1.4 MB
377.4 kB
In fact, the total size of Discovery.ucl.ac.uk main page is 1.4 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. 40% of websites need less resources to load. Javascripts take 1.2 MB which makes up the majority of the site volume.
Potential reduce by 41.3 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 41.3 kB or 69% of the original size.
Potential reduce by 3.7 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. Discovery UCL images are well optimized though.
Potential reduce by 852.4 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 852.4 kB or 73% of the original size.
Potential reduce by 87.9 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. Discovery.ucl.ac.uk needs all CSS files to be minified and compressed as it can save up to 87.9 kB or 85% of the original size.
Number of requests can be reduced by 31 (78%)
40
9
The browser has sent 40 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Discovery 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 16 to 1 for JavaScripts and from 8 to 1 for CSS and as a result speed up the page load time.
discovery.ucl.ac.uk
484 ms
jquery-1.4.1.min.js
402 ms
jquery-ui.min.js
640 ms
jquery-ui.css
335 ms
accordion.css
264 ms
jsapi
17 ms
auto-3.3.14.css
385 ms
auto-3.3.14.js
766 ms
addthis_widget.js
11 ms
jquery.funnelback-completion.js
459 ms
jquery.tmpl.min.js
385 ms
jquery-ui-1.8.2.custom.min.js
459 ms
15 ms
ui+en.css
4 ms
format+en,default+en,ui+en,geochart+en,corechart+en.I.js
13 ms
widgets.js
83 ms
ga.js
83 ms
bg-search.png
225 ms
ucl0004.gif
101 ms
div-main-home-bg.gif
175 ms
home-search-bg2.jpg
202 ms
browse-by-bg.gif
201 ms
rss-feed.gif
201 ms
more-arrow-everyone.gif
201 ms
more-arrow-author.gif
236 ms
dna.jpg
407 ms
follow-icon-disco.png
317 ms
follow-icon-oa.png
315 ms
__utm.gif
54 ms
300lo.json
23 ms
timeline.1b43d11859b7663a2225b885f87704a5.js
7 ms
loading.gif
174 ms
closelabel.gif
171 ms
sh.7c7179124ea24ac6ba46caac.html
45 ms
syndication
106 ms
455641354861682688
169 ms
396240570059739136
202 ms
timeline.4d087f49a21e27038d9769d7c976b8fa.default.css
3 ms
timeline.4d087f49a21e27038d9769d7c976b8fa.default.css
6 ms
timeline.4d087f49a21e27038d9769d7c976b8fa.default.css
23 ms
timeline.4d087f49a21e27038d9769d7c976b8fa.default.css
18 ms
discovery.ucl.ac.uk accessibility score
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
discovery.ucl.ac.uk best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Browser errors were logged to the console
discovery.ucl.ac.uk SEO score
Crawling and Indexing
To appear in search results, crawlers need access to your app.
Impact
Issue
Links are not crawlable
EN
EN
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Discovery.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 Discovery.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.
discovery.ucl.ac.uk
Open Graph description is not detected on the main page of Discovery UCL. 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: