Tools & Wizards About Us

Report Summary

  • 95

    Performance

    Renders faster than
    93% of other websites

  • 66

    Accessibility

    Visual factors better than
    that of 31% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

thermasys.co.uk

Ground Source Heat Pumps - Air Source Heat Pumps - Underfloor Heating - Solar Panels

Page Load Speed

1.5 sec in total

First Response

385 ms

Resources Loaded

1 sec

Page Rendered

123 ms

About Website

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

Thermasys Renewable Energy Systems - Ground and Air Source Heat Pumps, Underfloor Heating, Solar Panel Hot Water Heating systems. Thermasys offer a diverse range of renewable energy systems which are ...

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Key Findings

We analyzed Thermasys.co.uk page load time and found that the first response time was 385 ms and then it took 1.2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 25% of websites can load faster.

Performance Metrics

thermasys.co.uk performance score

95

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.4 s

71/100

10%

LCP (Largest Contentful Paint)

Value2.4 s

92/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value50 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value2.5 s

98/100

10%

Network Requests Diagram

thermasys.co.uk

385 ms

main.css

182 ms

swfobject.js

184 ms

ga.js

11 ms

site_back.gif

103 ms

Our browser made a total of 19 requests to load all elements on the main page. We found that 84% of them (16 requests) were addressed to the original Thermasys.co.uk, 16% (3 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (534 ms) belongs to the original domain Thermasys.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 177.2 kB (62%)

Content Size

284.8 kB

After Optimization

107.6 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Thermasys.co.uk main page is 284.8 kB. This result falls beyond the top 1M of websites and identifies a large and not optimized web page that may take ages to load. 20% of websites need less resources to load. Images take 239.0 kB which makes up the majority of the site volume.

HTML Optimization

-79%

Potential reduce by 15.4 kB

  • Original 19.5 kB
  • After minification 15.5 kB
  • After compression 4.1 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. This page needs HTML code to be minified as it can gain 4.0 kB, which is 20% 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 15.4 kB or 79% of the original size.

Image Optimization

-65%

Potential reduce by 155.2 kB

  • Original 239.0 kB
  • After minification 83.8 kB

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, Thermasys needs image optimization as it can save up to 155.2 kB or 65% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-20%

Potential reduce by 4.8 kB

  • Original 24.0 kB
  • After minification 23.8 kB
  • After compression 19.2 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 4.8 kB or 20% of the original size.

CSS Optimization

-79%

Potential reduce by 1.8 kB

  • Original 2.3 kB
  • After minification 1.7 kB
  • After compression 473 B

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. Thermasys.co.uk needs all CSS files to be minified and compressed as it can save up to 1.8 kB or 79% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

18

After Optimization

18

  • Images
  • JavaScript
  • CSS

The browser has sent 18 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Thermasys. According to our analytics all requests are already optimized.

Network Requests Diagram

Accessibility Review

thermasys.co.uk accessibility score

66

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.

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

Best Practices

thermasys.co.uk best practices score

67

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

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

SEO Factors

thermasys.co.uk SEO score

69

Search Engine Optimization Advices

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

    EN

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Thermasys.co.uk can be misinterpreted by Google and other search engines. Our service has detected that English is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Thermasys.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 description is not detected on the main page of Thermasys. 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: