Tools & Wizards About Us
nhsdentallab.co.uk screenshot

Report Summary

  • 55

    Performance

    Renders faster than
    73% of other websites

  • 52

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 42

    Best Practices

    More advanced features
    available than in
    18% of websites

  • 54

    SEO

    Google-friendlier than
    19% of websites

nhsdentallab.co.uk

Page Load Speed

2.2 sec in total

First Response

123 ms

Resources Loaded

1.1 sec

Page Rendered

1.1 sec

nhsdentallab.co.uk screenshot

About Website

Visit nhsdentallab.co.uk now to see the best up-to-date Nhsdentallab content and also check out these interesting facts you probably never knew about nhsdentallab.co.uk

NHS Dental Lab and the NHS Dental Laboratory LONDON, based in London UK. We offers high quality NHS dental laboratory products and services in partnership with London dentists, london dental laborator...

Visit nhsdentallab.co.uk

Key Findings

We analyzed Nhsdentallab.co.uk page load time and found that the first response time was 123 ms and then it took 2.1 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.

Performance Metrics

nhsdentallab.co.uk performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value0.7 s

100/100

10%

LCP (Largest Contentful Paint)

Value8.9 s

1/100

25%

SI (Speed Index)

Value3.3 s

90/100

10%

TBT (Total Blocking Time)

Value530 ms

55/100

30%

CLS (Cumulative Layout Shift)

Value0.015

100/100

15%

TTI (Time to Interactive)

Value7.8 s

44/100

10%

Network Requests Diagram

nhsdentallab.co.uk

123 ms

style.css

37 ms

slider.css

65 ms

jquery-1.7.1.min.js

115 ms

jquery.form.js

72 ms

Our browser made a total of 80 requests to load all elements on the main page. We found that 59% of them (47 requests) were addressed to the original Nhsdentallab.co.uk, 21% (17 requests) were made to W.sharethis.com and 4% (3 requests) were made to L.sharethis.com. The less responsive or slowest element that took the longest time to load (349 ms) belongs to the original domain Nhsdentallab.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 536.8 kB (17%)

Content Size

3.2 MB

After Optimization

2.6 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Nhsdentallab.co.uk main page is 3.2 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. 70% of websites need less resources to load. Images take 2.9 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 49.3 kB

  • Original 59.2 kB
  • After minification 52.6 kB
  • After compression 9.9 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 6.6 kB, which is 11% 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 49.3 kB or 83% of the original size.

Image Optimization

-14%

Potential reduce by 413.4 kB

  • Original 2.9 MB
  • After minification 2.5 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, Nhsdentallab needs image optimization as it can save up to 413.4 kB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-35%

Potential reduce by 72.6 kB

  • Original 206.8 kB
  • After minification 206.8 kB
  • After compression 134.2 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 72.6 kB or 35% of the original size.

CSS Optimization

-14%

Potential reduce by 1.5 kB

  • Original 10.7 kB
  • After minification 10.7 kB
  • After compression 9.1 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. Nhsdentallab.co.uk needs all CSS files to be minified and compressed as it can save up to 1.5 kB or 14% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (28%)

Requests Now

65

After Optimization

47

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Nhsdentallab. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 15 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

nhsdentallab.co.uk

nhsdentallab.co.uk

123 ms

style.css

style.css

37 ms

slider.css

slider.css

65 ms

jquery-1.7.1.min.js

jquery-1.7.1.min.js

115 ms

jquery.form.js

jquery.form.js

72 ms

jquery.cycle.min.js

jquery.cycle.min.js

71 ms

general.js

general.js

72 ms

refineslide.css

refineslide.css

71 ms

jquery.easing.js

jquery.easing.js

94 ms

script.js

script.js

103 ms

jquery.ui.totop.js

jquery.ui.totop.js

100 ms

jquery.refineslide.min.js

jquery.refineslide.min.js

98 ms

js

js

48 ms

gmap3.js

gmap3.js

104 ms

buttons.js

buttons.js

174 ms

our_gallery.jpg

our_gallery.jpg

170 ms

facebook_icon.jpg

facebook_icon.jpg

167 ms

youtube_icon.jpg

youtube_icon.jpg

167 ms

vert_hr_400.png

vert_hr_400.png

168 ms

direction.png

direction.png

169 ms

119.png

119.png

202 ms

120.png

120.png

205 ms

121.png

121.png

179 ms

224.png

224.png

220 ms

225.png

225.png

221 ms

17.png

17.png

205 ms

21.png

21.png

205 ms

122.png

122.png

228 ms

9.png

9.png

346 ms

15.png

15.png

348 ms

19.png

19.png

231 ms

12.png

12.png

349 ms

113.png

113.png

347 ms

gen_204

gen_204

24 ms

css

css

58 ms

pview

pview

55 ms

checkOAuth.esi

checkOAuth.esi

10 ms

BRUXZIRBRIDGE.jpg

BRUXZIRBRIDGE.jpg

216 ms

cbct-global.jpg

cbct-global.jpg

121 ms

dentallablondon.jpg

dentallablondon.jpg

216 ms

londondental-implants.jpg

londondental-implants.jpg

185 ms

NANOCERAMIC.jpg

NANOCERAMIC.jpg

101 ms

obsidian-b-a.jpg

obsidian-b-a.jpg

102 ms

Teeth-Closeup-WEB.jpg

Teeth-Closeup-WEB.jpg

215 ms

customer%20service.jpg

customer%20service.jpg

218 ms

zcrown_dental_lab_pr.jpg

zcrown_dental_lab_pr.jpg

215 ms

IMG_0730_807.jpg

IMG_0730_807.jpg

215 ms

IMG_0738_780.jpg

IMG_0738_780.jpg

257 ms

IMG_0739_450.jpg

IMG_0739_450.jpg

269 ms

IMG_0123_982.jpg

IMG_0123_982.jpg

269 ms

IMG_0126_982.jpg

IMG_0126_982.jpg

268 ms

ui.totop.png

ui.totop.png

267 ms

checkOAuth.esi

checkOAuth.esi

17 ms

index.9935f4384e7373d9fcbc9c18dd8d165e.html

index.9935f4384e7373d9fcbc9c18dd8d165e.html

24 ms

buttons.20a85a6a67053717023e8d12a9dba430.css

buttons.20a85a6a67053717023e8d12a9dba430.css

22 ms

all.js

all.js

17 ms

getCount2.php

getCount2.php

18 ms

pview

pview

177 ms

buttons.20a85a6a67053717023e8d12a9dba430.css

buttons.20a85a6a67053717023e8d12a9dba430.css

69 ms

index.9935f4384e7373d9fcbc9c18dd8d165e.html

index.9935f4384e7373d9fcbc9c18dd8d165e.html

132 ms

getCount2.php

getCount2.php

161 ms

all.js

all.js

72 ms

check-big.png

check-big.png

116 ms

googleplus_16.png

googleplus_16.png

91 ms

bubble_arrow.png

bubble_arrow.png

92 ms

twitter_counter.png

twitter_counter.png

93 ms

linkedin_counter.png

linkedin_counter.png

98 ms

email_counter.png

email_counter.png

98 ms

sharethis_counter.png

sharethis_counter.png

97 ms

st.da2f6a88d7bfe891c2a6f4578518e3f4.js

st.da2f6a88d7bfe891c2a6f4578518e3f4.js

43 ms

googleplus_16.png

googleplus_16.png

11 ms

bubble_arrow.png

bubble_arrow.png

10 ms

twitter_counter.png

twitter_counter.png

10 ms

sharethis_counter.png

sharethis_counter.png

10 ms

st.da2f6a88d7bfe891c2a6f4578518e3f4.js

st.da2f6a88d7bfe891c2a6f4578518e3f4.js

17 ms

email_counter.png

email_counter.png

16 ms

linkedin_counter.png

linkedin_counter.png

26 ms

sc

sc

23 ms

like.php

like.php

305 ms

FEppCFCt76d.png

FEppCFCt76d.png

99 ms

Accessibility Review

nhsdentallab.co.uk accessibility score

52

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

[id] attributes on active, focusable elements are not unique

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Tables and lists

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

Impact

Issue

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

nhsdentallab.co.uk best practices score

42

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

nhsdentallab.co.uk SEO score

54

Search Engine Optimization Advices

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

High

Image elements do not have [alt] attributes

Language and Encoding

  • Language Detected

    N/A

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Nhsdentallab.co.uk can be misinterpreted by Google and other search engines. Unfortunately we cannot identify language used on the page (probably there is a mix of languages, too little text or something else) and no language is claimed in <html> or <meta> tags either. Our system also found out that Nhsdentallab.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

nhsdentallab.co.uk

Open Graph description is not detected on the main page of Nhsdentallab. 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: