Tools & Wizards About Us

Report Summary

  • 15

    Performance

    Renders faster than
    27% of other websites

  • 79

    Accessibility

    Visual factors better than
    that of 47% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 86

    SEO

    Google-friendlier than
    60% of websites

jwheating.co.uk

Heating and Plumbing Specialists serving Chippenham

Page Load Speed

2.7 sec in total

First Response

271 ms

Resources Loaded

2.1 sec

Page Rendered

362 ms

About Website

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

Heating and Plumbing Specialists serving Chippenham and the surrounding area providing all types of boiler servicing and central heating systems

Visit jwheating.co.uk

Key Findings

We analyzed Jwheating.co.uk page load time and found that the first response time was 271 ms and then it took 2.5 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

jwheating.co.uk performance score

15

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.6 s

13/100

10%

LCP (Largest Contentful Paint)

Value6.3 s

10/100

25%

SI (Speed Index)

Value9.0 s

14/100

10%

TBT (Total Blocking Time)

Value1,470 ms

14/100

30%

CLS (Cumulative Layout Shift)

Value0.418

23/100

15%

TTI (Time to Interactive)

Value11.1 s

20/100

10%

Network Requests Diagram

jwheating.co.uk

271 ms

jwheating.co.uk

537 ms

style.min.css

85 ms

cleantalk-public.min.css

170 ms

front.min.css

251 ms

Our browser made a total of 67 requests to load all elements on the main page. We found that 84% of them (56 requests) were addressed to the original Jwheating.co.uk, 10% (7 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Fonts.googleapis.com. The less responsive or slowest element that took the longest time to load (939 ms) belongs to the original domain Jwheating.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 114.3 kB (29%)

Content Size

391.1 kB

After Optimization

276.8 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Jwheating.co.uk main page is 391.1 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. 65% of websites need less resources to load. Images take 203.1 kB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 106.9 kB

  • Original 131.2 kB
  • After minification 129.0 kB
  • After compression 24.2 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 106.9 kB or 82% of the original size.

Image Optimization

-4%

Potential reduce by 7.4 kB

  • Original 203.1 kB
  • After minification 195.7 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. Jw Heating images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 0 B

  • Original 56.9 kB
  • After minification 56.9 kB
  • After compression 56.9 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.

Requests Breakdown

Number of requests can be reduced by 49 (89%)

Requests Now

55

After Optimization

6

  • Images
  • JavaScript
  • CSS

The browser has sent 55 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jw Heating. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 25 to 1 for JavaScripts and from 26 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

jwheating.co.uk accessibility score

79

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jwheating.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

High

Page has valid source maps

SEO Factors

jwheating.co.uk SEO score

86

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

Links do not have descriptive text

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

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 Jwheating.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 Jwheating.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 Jw Heating. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: