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nuffieldhealth.co.uk screenshot

Report Summary

  • 19

    Performance

    Renders faster than
    36% of other websites

  • 96

    Accessibility

    Visual factors better than
    that of 88% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

nuffieldhealth.co.uk

How you feel tomorrow starts today | Nuffield Health

Page Load Speed

10.9 sec in total

First Response

300 ms

Resources Loaded

4.6 sec

Page Rendered

6 sec

nuffieldhealth.co.uk screenshot

About Website

Click here to check amazing Nuffield Health content. Otherwise, check out these important facts you probably never knew about nuffieldhealth.co.uk

As the UK's largest healthcare charity, Nuffield Health exists to build a healthier nation through our hospitals, fitness & wellbeing clubs, healthcare clinics and workplace wellbeing services.

Visit nuffieldhealth.co.uk

Key Findings

We analyzed Nuffieldhealth.co.uk page load time and found that the first response time was 300 ms and then it took 10.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 90% of websites can load faster.

Performance Metrics

nuffieldhealth.co.uk performance score

19

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.4 s

7/100

10%

LCP (Largest Contentful Paint)

Value6.9 s

6/100

25%

SI (Speed Index)

Value9.5 s

11/100

10%

TBT (Total Blocking Time)

Value5,180 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.017

100/100

15%

TTI (Time to Interactive)

Value19.1 s

3/100

10%

Network Requests Diagram

www.nuffieldhealth.com

300 ms

www.nuffieldhealth.com

786 ms

application-00b3c560.css

57 ms

js

166 ms

application.min-fd32142b.js

135 ms

Our browser made a total of 38 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Nuffieldhealth.co.uk, 16% (6 requests) were made to Youtube.com and 5% (2 requests) were made to Maps.googleapis.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Nuffieldhealth.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 675.7 kB (25%)

Content Size

2.7 MB

After Optimization

2.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nuffieldhealth.co.uk main page is 2.7 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. Only a small number of websites need less resources to load. Images take 1.7 MB which makes up the majority of the site volume.

HTML Optimization

-92%

Potential reduce by 341.5 kB

  • Original 369.4 kB
  • After minification 246.1 kB
  • After compression 27.9 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 123.3 kB, which is 33% 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 341.5 kB or 92% of the original size.

Image Optimization

-0%

Potential reduce by 80 B

  • Original 1.7 MB
  • After minification 1.7 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. Nuffield Health images are well optimized though.

JavaScript Optimization

-10%

Potential reduce by 24.3 kB

  • Original 253.8 kB
  • After minification 253.8 kB
  • After compression 229.5 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

-73%

Potential reduce by 309.8 kB

  • Original 425.5 kB
  • After minification 425.3 kB
  • After compression 115.7 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. Nuffieldhealth.co.uk needs all CSS files to be minified and compressed as it can save up to 309.8 kB or 73% of the original size.

Requests Breakdown

Number of requests can be reduced by 9 (29%)

Requests Now

31

After Optimization

22

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 31 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nuffield Health. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 10 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

www.nuffieldhealth.com

www.nuffieldhealth.com

300 ms

www.nuffieldhealth.com

www.nuffieldhealth.com

786 ms

application-00b3c560.css

application-00b3c560.css

57 ms

js

js

166 ms

application.min-fd32142b.js

application.min-fd32142b.js

135 ms

gen_204

gen_204

554 ms

cookieControl-9.x.min.js

cookieControl-9.x.min.js

904 ms

gtm.js

gtm.js

901 ms

logo_inverse.svg

logo_inverse.svg

528 ms

tADaSl_HtqA

tADaSl_HtqA

999 ms

how-you-feel-tomorrow-starts-today.jpg

how-you-feel-tomorrow-starts-today.jpg

597 ms

gyms-tile-small.jpg

gyms-tile-small.jpg

609 ms

hospitals-tile-small.jpg

hospitals-tile-small.jpg

715 ms

physiotherapy-tile-small.jpg

physiotherapy-tile-small.jpg

714 ms

emotional-wellbeing-tile-small.jpg

emotional-wellbeing-tile-small.jpg

700 ms

health-assessments-tile-small.jpg

health-assessments-tile-small.jpg

718 ms

nuffield-health-24-7-tile-small.jpg

nuffield-health-24-7-tile-small.jpg

700 ms

jobs-for-gps-tile-small.png

jobs-for-gps-tile-small.png

800 ms

nurseries-tile-small.jpg

nurseries-tile-small.jpg

716 ms

beauty-treatments-tile-small.jpg

beauty-treatments-tile-small.jpg

738 ms

pathology-direct-tile-small.jpg

pathology-direct-tile-small.jpg

715 ms

personal-training-tile-small.jpg

personal-training-tile-small.jpg

738 ms

our-flagships-tile-small.jpg

our-flagships-tile-small.jpg

799 ms

chevron.svg

chevron.svg

1389 ms

AvenirLTStd-Roman-128d9b86.woff

AvenirLTStd-Roman-128d9b86.woff

621 ms

nuffieldicons-d0b7a4cd.woff

nuffieldicons-d0b7a4cd.woff

620 ms

AvenirLTStd-Black-280891c6.woff

AvenirLTStd-Black-280891c6.woff

617 ms

www-player.css

www-player.css

626 ms

www-embed-player.js

www-embed-player.js

694 ms

base.js

base.js

837 ms

fetch-polyfill.js

fetch-polyfill.js

668 ms

ad_status.js

ad_status.js

276 ms

NAdTarfwBmmVN2jO9_ZDZXbW2JobdXK1pZJ09rC2Bcw.js

NAdTarfwBmmVN2jO9_ZDZXbW2JobdXK1pZJ09rC2Bcw.js

233 ms

embed.js

embed.js

24 ms

id

id

29 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

174 ms

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

KFOlCnqEu92Fr1MmEU9fBBc9.ttf

175 ms

Create

Create

134 ms

Accessibility Review

nuffieldhealth.co.uk accessibility score

96

Accessibility Issues

Contrast

These are opportunities to improve the legibility of your content.

Impact

Issue

High

Background and foreground colors do not have a sufficient contrast ratio.

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

High

<frame> or <iframe> elements do not have a title

Best Practices

nuffieldhealth.co.uk best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

nuffieldhealth.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

    N/A

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nuffieldhealth.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 Nuffieldhealth.co.uk main page’s claimed encoding is . Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

nuffieldhealth.co.uk

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