2.7 sec in total
314 ms
1.9 sec
412 ms
Welcome to vsl3.co.uk homepage info - get ready to check VSL 3 best content for United Kingdom right away, or after learning these important things about vsl3.co.uk
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Visit vsl3.co.ukWe analyzed Vsl3.co.uk page load time and found that the first response time was 314 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.
vsl3.co.uk performance score
name
value
score
weighting
Value3.0 s
49/100
10%
Value8.9 s
1/100
25%
Value6.9 s
34/100
10%
Value810 ms
36/100
30%
Value0.549
13/100
15%
Value12.5 s
14/100
10%
314 ms
155 ms
244 ms
160 ms
26 ms
Our browser made a total of 43 requests to load all elements on the main page. We found that 84% of them (36 requests) were addressed to the original Vsl3.co.uk, 7% (3 requests) were made to Google-analytics.com and 5% (2 requests) were made to Vjs.zencdn.net. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Vsl3.co.uk.
Page size can be reduced by 167.3 kB (14%)
1.2 MB
994.7 kB
In fact, the total size of Vsl3.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. 25% of websites need less resources to load. Images take 938.2 kB which makes up the majority of the site volume.
Potential reduce by 11.8 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 3.4 kB, which is 22% 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 11.8 kB or 75% of the original size.
Potential reduce by 29.5 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. VSL 3 images are well optimized though.
Potential reduce by 97.2 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 97.2 kB or 57% of the original size.
Potential reduce by 28.8 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. Vsl3.co.uk needs all CSS files to be minified and compressed as it can save up to 28.8 kB or 76% of the original size.
Number of requests can be reduced by 15 (36%)
42
27
The browser has sent 42 CSS, Javascripts, AJAX and image requests in order to completely render the main page of VSL 3. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.
vsl3.co.uk
314 ms
reset.css
155 ms
style.css
244 ms
flexslider.css
160 ms
css
26 ms
video-js.css
30 ms
jquery-1.10.2.min.js
388 ms
iosFix.js
164 ms
jquery.flexslider-min.js
352 ms
vsl3.js
310 ms
video.js
30 ms
banner_02.png
795 ms
banner_03.png
832 ms
banner_04.png
849 ms
icon_heart.png
467 ms
button_hcp_login.png
511 ms
widgets.js
129 ms
bg_main.png
292 ms
penant_order_now_small.png
373 ms
bg_green_tint_25.png
417 ms
logo_vsl3_main.png
445 ms
bg_menu_basket.png
525 ms
bg_white_tint_55.png
572 ms
bg_order_button_large.png
596 ms
button_order_now_large.png
754 ms
poster_small.jpg
779 ms
bg_right_col.png
729 ms
bg_progress_bar.png
734 ms
feature_icon_question.jpg
751 ms
feature_icon_asclepius.jpg
765 ms
feature_icon_stethoscope.jpg
887 ms
bg_bottom_logo.png
887 ms
image_dancer_large.png
1370 ms
bg_footer_shadow.png
907 ms
bg_footer.png
933 ms
icon_contact_phone.png
937 ms
icon_contact_email.png
1040 ms
__utm.gif
23 ms
ga.js
22 ms
bg_menu_home.png
878 ms
scroll_left.jpg
884 ms
scroll_right.jpg
908 ms
__utm.gif
12 ms
vsl3.co.uk accessibility score
ARIA
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.
Impact
Issue
[aria-*] attributes are not valid or misspelled
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
Buttons do not have an accessible name
Contrast
These are opportunities to improve the legibility of your content.
Impact
Issue
Background and foreground colors do not have a sufficient contrast ratio.
Navigation
These are opportunities to improve keyboard navigation in your application.
Impact
Issue
Heading elements are not in a sequentially-descending order
vsl3.co.uk best practices score
Trust and Safety
Impact
Issue
Does not use HTTPS
Includes front-end JavaScript libraries with known security vulnerabilities
Ensure CSP is effective against XSS attacks
User Experience
Impact
Issue
Serves images with low resolution
General
Impact
Issue
Detected JavaScript libraries
Page has valid source maps
vsl3.co.uk SEO score
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Impact
Issue
Links do not have descriptive text
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
Document uses legible font sizes
EN
N/A
UTF-8
Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Vsl3.co.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Vsl3.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.
vsl3.co.uk
Open Graph description is not detected on the main page of VSL 3. 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: