Access uhdb.nhs.uk. Home | University Hospitals of Derby and Burton (UHDB) | University Hospitals of Derby and Burton NH...

name

value

score

weighting

FCP (First Contentful Paint)

Value4.0 s

23/100

10%

LCP (Largest Contentful Paint)

Value5.9 s

14/100

25%

SI (Speed Index)

Value7.0 s

33/100

10%

TBT (Total Blocking Time)

Value180 ms

92/100

30%

CLS (Cumulative Layout Shift)

Value0.084

93/100

15%

TTI (Time to Interactive)

Value13.4 s

11/100

10%

uhdb.nhs.uk

261 ms

uhdb.nhs.uk

353 ms

www.uhdb.nhs.uk

812 ms

styles.css

175 ms

support-styles.css

237 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 85% of them (51 requests) were addressed to the original Uhdb.nhs.uk, 7% (4 requests) were made to Browsealoud.com and 5% (3 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Uhdb.nhs.uk.

Content Size

8.4 MB

After Optimization

6.2 MB

In fact, the total size of Uhdb.nhs.uk main page is 8.4 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. 55% of websites need less resources to load. Images take 7.8 MB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 64.1 kB

Original 80.2 kB
After minification 80.2 kB
After compression 16.1 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 64.1 kB or 80% of the original size.

Image Optimization

-27%

Potential reduce by 2.1 MB

Original 7.8 MB
After minification 5.7 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. Obviously, UHDB needs image optimization as it can save up to 2.1 MB or 27% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-1%

Potential reduce by 2.2 kB

Original 424.9 kB
After minification 424.9 kB
After compression 422.6 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

-2%

Potential reduce by 802 B

Original 46.4 kB
After minification 46.3 kB
After compression 45.6 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. Uhdb.nhs.uk has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 51 CSS, Javascripts, AJAX and image requests in order to completely render the main page of UHDB. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 26 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.