Tools & Wizards About Us
cbgheating.co.uk screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 87

    Accessibility

    Visual factors better than
    that of 66% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

cbgheating.co.uk

Expert Heating Engineers in Nottinghamshire | CBG Heating

Page Load Speed

2.9 sec in total

First Response

304 ms

Resources Loaded

2 sec

Page Rendered

597 ms

cbgheating.co.uk screenshot

About Website

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

With over 20 years of experience, we provide expert boiler installation, repair, maintenance, and servicing to domestic, commercial, and public sectors in Nottinghamshire, Lincolnsire and South Yorksh...

Visit cbgheating.co.uk

Key Findings

We analyzed Cbgheating.co.uk page load time and found that the first response time was 304 ms and then it took 2.6 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

cbgheating.co.uk performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.5 s

35/100

10%

LCP (Largest Contentful Paint)

Value5.7 s

16/100

25%

SI (Speed Index)

Value6.3 s

41/100

10%

TBT (Total Blocking Time)

Value520 ms

56/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value6.3 s

61/100

10%

Network Requests Diagram

cbgheating.co.uk

304 ms

www.cbgheating.co.uk

857 ms

styles.css

153 ms

all.js

71 ms

rnh7cyb.css

125 ms

Our browser made a total of 33 requests to load all elements on the main page. We found that 79% of them (26 requests) were addressed to the original Cbgheating.co.uk, 6% (2 requests) were made to Fontlibrary.org and 3% (1 request) were made to Use.fontawesome.com. The less responsive or slowest element that took the longest time to load (857 ms) belongs to the original domain Cbgheating.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 725.4 kB (35%)

Content Size

2.1 MB

After Optimization

1.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Cbgheating.co.uk main page is 2.1 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 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 45.2 kB

  • Original 54.9 kB
  • After minification 40.0 kB
  • After compression 9.7 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 14.9 kB, which is 27% 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 45.2 kB or 82% of the original size.

Image Optimization

-38%

Potential reduce by 623.6 kB

  • Original 1.6 MB
  • After minification 1.0 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, CBG Heating needs image optimization as it can save up to 623.6 kB or 38% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-15%

Potential reduce by 56.5 kB

  • Original 371.3 kB
  • After minification 371.3 kB
  • After compression 314.8 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 56.5 kB or 15% of the original size.

CSS Optimization

-0%

Potential reduce by 157 B

  • Original 34.2 kB
  • After minification 34.2 kB
  • After compression 34.1 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. Cbgheating.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 4 (13%)

Requests Now

30

After Optimization

26

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of CBG 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 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

cbgheating.co.uk

cbgheating.co.uk

304 ms

www.cbgheating.co.uk

www.cbgheating.co.uk

857 ms

styles.css

styles.css

153 ms

all.js

all.js

71 ms

rnh7cyb.css

rnh7cyb.css

125 ms

hk-grotesk

hk-grotesk

270 ms

jquery.min.js

jquery.min.js

38 ms

jquery.form.min.js

jquery.form.min.js

47 ms

plugins-min.js

plugins-min.js

229 ms

onload-min.js

onload-min.js

243 ms

cbg_logo_blue.svg

cbg_logo_blue.svg

319 ms

btn-arrow.png

btn-arrow.png

243 ms

oil_boiler.gif

oil_boiler.gif

316 ms

gas_boiler.gif

gas_boiler.gif

316 ms

service.gif

service.gif

420 ms

which_white.jpg

which_white.jpg

607 ms

checkatrade-logo.png

checkatrade-logo.png

423 ms

chas-logo.png

chas-logo.png

546 ms

worcester-logo.png

worcester-logo.png

547 ms

notts-trading-standards-logo.png

notts-trading-standards-logo.png

547 ms

Group_164.png

Group_164.png

476 ms

Group_165.png

Group_165.png

477 ms

Group_166.png

Group_166.png

545 ms

5-stars.png

5-stars.png

547 ms

Mask_Group_3.png

Mask_Group_3.png

601 ms

Heat_Pumps_920_636_80_s_c1.jpg

Heat_Pumps_920_636_80_s_c1.jpg

685 ms

Oil_tank_920_636_80_s_c1.jpg

Oil_tank_920_636_80_s_c1.jpg

686 ms

Gas_Boiler_CBG_Heating_Lincolnshire_920_636_80_s_c1.jpg

Gas_Boiler_CBG_Heating_Lincolnshire_920_636_80_s_c1.jpg

621 ms

footer-square-bg.png

footer-square-bg.png

848 ms

p.css

p.css

27 ms

news

news

64 ms

5-star-mask.png

5-star-mask.png

318 ms

banner-50-50-bg.png

banner-50-50-bg.png

397 ms

Accessibility Review

cbgheating.co.uk accessibility score

87

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

button, link, and menuitem elements do not have accessible names.

High

[role]s are not contained by their required parent element

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

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

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Best Practices

cbgheating.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

High

Page has valid source maps

SEO Factors

cbgheating.co.uk SEO score

93

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

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 Cbgheating.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 Cbgheating.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

cbgheating.co.uk

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