Report Summary

  • 40

    Performance

    Renders faster than
    60% of other websites

  • 94

    Accessibility

    Visual factors better than
    that of 84% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    81% of websites

  • 99

    SEO

    Google-friendlier than
    93% of websites

cleanairltd.co.uk

Clean Air - Advanced Fume Cupboards - Extract Systems

Page Load Speed

4.3 sec in total

First Response

842 ms

Resources Loaded

2.7 sec

Page Rendered

726 ms

cleanairltd.co.uk screenshot

About Website

Welcome to cleanairltd.co.uk homepage info - get ready to check Clean Air Ltd best content right away, or after learning these important things about cleanairltd.co.uk

Clean Air designs, manufactures & installs innovative, safe, compliant fume cupboards & extract systems. Type tested to BSEN14175.

Visit cleanairltd.co.uk

Key Findings

We analyzed Cleanairltd.co.uk page load time and found that the first response time was 842 ms and then it took 3.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

cleanairltd.co.uk performance score

40

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value8.1 s

2/100

25%

SI (Speed Index)

Value3.6 s

86/100

10%

TBT (Total Blocking Time)

Value1,200 ms

20/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value7.9 s

44/100

10%

Network Requests Diagram

www.cleanairltd.co.uk

842 ms

css2

28 ms

style.css

245 ms

jquery.min.js

322 ms

jquery-migrate.min.js

244 ms

Our browser made a total of 37 requests to load all elements on the main page. We found that 78% of them (29 requests) were addressed to the original Cleanairltd.co.uk, 8% (3 requests) were made to Fonts.gstatic.com and 5% (2 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Cleanairltd.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 209.5 kB (8%)

Content Size

2.8 MB

After Optimization

2.5 MB

In fact, the total size of Cleanairltd.co.uk main page is 2.8 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. 65% of websites need less resources to load. Images take 2.4 MB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 66.5 kB

  • Original 84.1 kB
  • After minification 81.1 kB
  • After compression 17.6 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 66.5 kB or 79% of the original size.

Image Optimization

-5%

Potential reduce by 131.8 kB

  • Original 2.4 MB
  • After minification 2.3 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. Clean Air Ltd images are well optimized though.

JavaScript Optimization

-3%

Potential reduce by 7.5 kB

  • Original 253.0 kB
  • After minification 253.0 kB
  • After compression 245.5 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

-30%

Potential reduce by 3.7 kB

  • Original 12.4 kB
  • After minification 12.4 kB
  • After compression 8.7 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. Cleanairltd.co.uk needs all CSS files to be minified and compressed as it can save up to 3.7 kB or 30% of the original size.

Requests Breakdown

Number of requests can be reduced by 6 (18%)

Requests Now

33

After Optimization

27

The browser has sent 33 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Clean Air Ltd. 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 as a result speed up the page load time.

Accessibility Review

cleanairltd.co.uk accessibility score

94

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

Links do not have a discernible name

Best Practices

cleanairltd.co.uk best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

General

Impact

Issue

Low

Detected JavaScript libraries

SEO Factors

cleanairltd.co.uk SEO score

99

Search Engine Optimization Advices

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 Cleanairltd.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 Cleanairltd.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

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