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carbonlights.co.uk screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 68

    Accessibility

    Visual factors better than
    that of 33% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 84

    SEO

    Google-friendlier than
    52% of websites

carbonlights.co.uk

Page Load Speed

11 sec in total

First Response

873 ms

Resources Loaded

9.9 sec

Page Rendered

266 ms

carbonlights.co.uk screenshot

About Website

Welcome to carbonlights.co.uk homepage info - get ready to check Carbonlights best content right away, or after learning these important things about carbonlights.co.uk

LED lights designed to perform. We are dedicated to providing ground breaking light solutions designed and manufactured in the UK. The best led lighting

Visit carbonlights.co.uk

Key Findings

We analyzed Carbonlights.co.uk page load time and found that the first response time was 873 ms and then it took 10.2 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

carbonlights.co.uk performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.8 s

11/100

10%

LCP (Largest Contentful Paint)

Value8.3 s

2/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value330 ms

75/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value8.0 s

42/100

10%

Network Requests Diagram

www.carbonlights.co.uk

873 ms

styles.css

308 ms

royalslider.css

349 ms

rs-minimal-white.css

355 ms

css

5031 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 91% of them (40 requests) were addressed to the original Carbonlights.co.uk, 7% (3 requests) were made to Google-analytics.com and 2% (1 request) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (5 sec) relates to the external source Fonts.googleapis.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 127.9 kB (6%)

Content Size

2.2 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Carbonlights.co.uk main page is 2.2 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. 35% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-76%

Potential reduce by 17.2 kB

  • Original 22.6 kB
  • After minification 19.2 kB
  • After compression 5.3 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. This page needs HTML code to be minified as it can gain 3.4 kB, which is 15% 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 17.2 kB or 76% of the original size.

Image Optimization

-5%

Potential reduce by 97.2 kB

  • Original 2.0 MB
  • After minification 1.9 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. Carbonlights images are well optimized though.

JavaScript Optimization

-11%

Potential reduce by 10.2 kB

  • Original 94.5 kB
  • After minification 94.5 kB
  • After compression 84.4 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 10.2 kB or 11% of the original size.

CSS Optimization

-15%

Potential reduce by 3.3 kB

  • Original 22.0 kB
  • After minification 22.0 kB
  • After compression 18.7 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. Carbonlights.co.uk needs all CSS files to be minified and compressed as it can save up to 3.3 kB or 15% of the original size.

Requests Breakdown

Number of requests can be reduced by 12 (29%)

Requests Now

41

After Optimization

29

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Carbonlights. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 9 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.carbonlights.co.uk

www.carbonlights.co.uk

873 ms

styles.css

styles.css

308 ms

royalslider.css

royalslider.css

349 ms

rs-minimal-white.css

rs-minimal-white.css

355 ms

css

css

5031 ms

genericons.css

genericons.css

405 ms

style.css

style.css

405 ms

jquery.js

jquery.js

407 ms

jquery-migrate.min.js

jquery-migrate.min.js

568 ms

jquery.form.min.js

jquery.form.min.js

625 ms

scripts.js

scripts.js

661 ms

main.js

main.js

666 ms

jquery.royalslider.min.js

jquery.royalslider.min.js

720 ms

comment-reply.min.js

comment-reply.min.js

682 ms

functions.js

functions.js

837 ms

analytics.js

analytics.js

89 ms

logo.png

logo.png

556 ms

bullet.png

bullet.png

570 ms

banner.jpg

banner.jpg

867 ms

P4020460-e1512471113189.jpg

P4020460-e1512471113189.jpg

915 ms

Newark-and-Sherwood-20141008-01012-e1512471341997.jpg

Newark-and-Sherwood-20141008-01012-e1512471341997.jpg

842 ms

IMG_0955-e1512471387296.jpg

IMG_0955-e1512471387296.jpg

916 ms

Picture1-e1512471428253.png

Picture1-e1512471428253.png

1401 ms

Zeta-SL-Master-e1512474081630.jpg

Zeta-SL-Master-e1512474081630.jpg

841 ms

seperator.gif

seperator.gif

1108 ms

designed-in-britian-tick.jpg

designed-in-britian-tick.jpg

1226 ms

food.png

food.png

1381 ms

pharmaceutical.png

pharmaceutical.png

1391 ms

manufacturing.png

manufacturing.png

1489 ms

retail.png

retail.png

1542 ms

revolution-seperator.png

revolution-seperator.png

1485 ms

quote.png

quote.png

1643 ms

read-more.png

read-more.png

1669 ms

nmc1.gif

nmc1.gif

1689 ms

footer-logo.png

footer-logo.png

1738 ms

carbon-trust.png

carbon-trust.png

1798 ms

in-britain.png

in-britain.png

1834 ms

urs.png

urs.png

1940 ms

lighting-industry-association.png

lighting-industry-association.png

1938 ms

eca.png

eca.png

1940 ms

preloader-white.gif

preloader-white.gif

2435 ms

rs-minimal-white.png

rs-minimal-white.png

1997 ms

collect

collect

32 ms

collect

collect

10 ms

Accessibility Review

carbonlights.co.uk accessibility score

68

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

Heading elements are not in a sequentially-descending order

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

Best Practices

carbonlights.co.uk best practices score

75

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

Browser errors were logged to the console

SEO Factors

carbonlights.co.uk SEO score

84

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

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

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

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Carbonlights.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 Carbonlights.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

carbonlights.co.uk

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