Tools & Wizards About Us
rbcentralsystems.co.uk screenshot

Report Summary

  • 22

    Performance

    Renders faster than
    40% of other websites

  • 88

    Accessibility

    Visual factors better than
    that of 68% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

rbcentralsystems.co.uk

RB Central Vacuum & Ventilation Systems | South East England

Page Load Speed

3.1 sec in total

First Response

239 ms

Resources Loaded

2.4 sec

Page Rendered

460 ms

rbcentralsystems.co.uk screenshot

About Website

Visit rbcentralsystems.co.uk now to see the best up-to-date RB Central Systems content and also check out these interesting facts you probably never knew about rbcentralsystems.co.uk

Based in Kent, RB Central Vacuum & Ventilation Systems offer a wide range of Central Vacuum, Ventilation & MVHR Systems in South East England.

Visit rbcentralsystems.co.uk

Key Findings

We analyzed Rbcentralsystems.co.uk page load time and found that the first response time was 239 ms and then it took 2.9 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

rbcentralsystems.co.uk performance score

22

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.7 s

13/100

10%

LCP (Largest Contentful Paint)

Value15.3 s

0/100

25%

SI (Speed Index)

Value10.0 s

9/100

10%

TBT (Total Blocking Time)

Value1,690 ms

11/100

30%

CLS (Cumulative Layout Shift)

Value0.001

100/100

15%

TTI (Time to Interactive)

Value13.6 s

11/100

10%

Network Requests Diagram

rbcentralsystems.co.uk

239 ms

www.rbcentralsystems.co.uk

399 ms

styles.css

74 ms

iconfont-min.css

34 ms

style-min.css

41 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 81% of them (57 requests) were addressed to the original Rbcentralsystems.co.uk, 4% (3 requests) were made to Use.fontawesome.com and 4% (3 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (545 ms) belongs to the original domain Rbcentralsystems.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 582.9 kB (12%)

Content Size

4.7 MB

After Optimization

4.1 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Rbcentralsystems.co.uk main page is 4.7 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. 75% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-83%

Potential reduce by 108.2 kB

  • Original 130.6 kB
  • After minification 127.5 kB
  • After compression 22.4 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 108.2 kB or 83% of the original size.

Image Optimization

-12%

Potential reduce by 472.7 kB

  • Original 4.1 MB
  • After minification 3.6 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, RB Central Systems needs image optimization as it can save up to 472.7 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-0%

Potential reduce by 1.4 kB

  • Original 387.1 kB
  • After minification 387.1 kB
  • After compression 385.7 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

-1%

Potential reduce by 618 B

  • Original 66.7 kB
  • After minification 66.7 kB
  • After compression 66.1 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. Rbcentralsystems.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 48 (74%)

Requests Now

65

After Optimization

17

  • Images
  • JavaScript
  • CSS

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of RB Central Systems. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 29 to 1 for JavaScripts and from 21 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

rbcentralsystems.co.uk

rbcentralsystems.co.uk

239 ms

www.rbcentralsystems.co.uk

www.rbcentralsystems.co.uk

399 ms

styles.css

styles.css

74 ms

iconfont-min.css

iconfont-min.css

34 ms

style-min.css

style-min.css

41 ms

wpbf-premium.css

wpbf-premium.css

56 ms

all.css

all.css

43 ms

v4-shims.css

v4-shims.css

62 ms

custom-frontend.min.css

custom-frontend.min.css

63 ms

swiper.min.css

swiper.min.css

25 ms

e-swiper.min.css

e-swiper.min.css

28 ms

all.min.css

all.min.css

25 ms

v4-shims.min.css

v4-shims.min.css

23 ms

widget-heading.min.css

widget-heading.min.css

23 ms

custom-widget-image-box.min.css

custom-widget-image-box.min.css

23 ms

widget-divider.min.css

widget-divider.min.css

32 ms

widget-image.min.css

widget-image.min.css

33 ms

widget-text-editor.min.css

widget-text-editor.min.css

35 ms

widget-testimonial.min.css

widget-testimonial.min.css

47 ms

css

css

45 ms

smartslider.min.css

smartslider.min.css

42 ms

n2.min.js

n2.min.js

51 ms

smartslider-frontend.min.js

smartslider-frontend.min.js

49 ms

ss-simple.min.js

ss-simple.min.js

42 ms

jquery.min.js

jquery.min.js

50 ms

jquery-migrate.min.js

jquery-migrate.min.js

62 ms

v4-shims.min.js

v4-shims.min.js

65 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

27 ms

email-decode.min.js

email-decode.min.js

59 ms

widget-social-icons.min.css

widget-social-icons.min.css

90 ms

custom-apple-webkit.min.css

custom-apple-webkit.min.css

93 ms

hooks.min.js

hooks.min.js

92 ms

i18n.min.js

i18n.min.js

92 ms

index.js

index.js

93 ms

index.js

index.js

92 ms

gtm4wp-contact-form-7-tracker.js

gtm4wp-contact-form-7-tracker.js

99 ms

gtm4wp-form-move-tracker.js

gtm4wp-form-move-tracker.js

102 ms

site-min.js

site-min.js

103 ms

comment-reply.min.js

comment-reply.min.js

102 ms

site.js

site.js

102 ms

api.js

api.js

59 ms

wp-polyfill.min.js

wp-polyfill.min.js

136 ms

index.js

index.js

101 ms

webpack.runtime.min.js

webpack.runtime.min.js

138 ms

frontend-modules.min.js

frontend-modules.min.js

138 ms

core.min.js

core.min.js

140 ms

frontend.min.js

frontend.min.js

140 ms

gtm.js

gtm.js

159 ms

RB-Central-Vacuum-Ventilation-Systems.png

RB-Central-Vacuum-Ventilation-Systems.png

53 ms

AXCO-HRV-NEW-UNIT-in-situ.jpg

AXCO-HRV-NEW-UNIT-in-situ.jpg

64 ms

beam_vacuum1-1024x768.png

beam_vacuum1-1024x768.png

65 ms

familyandgirloncouch.jpg

familyandgirloncouch.jpg

136 ms

Central-Vacuum.jpg

Central-Vacuum.jpg

62 ms

Axco-Ventilation.jpg

Axco-Ventilation.jpg

67 ms

Positive-Input-Ventilation.jpg

Positive-Input-Ventilation.jpg

64 ms

Laundy.jpg

Laundy.jpg

484 ms

Beam-Final-Logo.jpg

Beam-Final-Logo.jpg

80 ms

BPEC-Certified.jpg

BPEC-Certified.jpg

88 ms

Nic-Ventilation.jpg

Nic-Ventilation.jpg

68 ms

Testimonials.jpg

Testimonials.jpg

137 ms

Beam-Brochure.jpg

Beam-Brochure.jpg

134 ms

recaptcha__en.js

recaptcha__en.js

42 ms

page-builder-framework.woff

page-builder-framework.woff

314 ms

fa-brands-400.woff

fa-brands-400.woff

545 ms

fa-brands-400.woff

fa-brands-400.woff

26 ms

js

js

86 ms

destination

destination

49 ms

74 ms

92 ms

19 ms

Accessibility Review

rbcentralsystems.co.uk accessibility score

88

Accessibility Issues

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

Buttons do not have an accessible name

High

Links do not have a discernible name

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

Best Practices

rbcentralsystems.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

rbcentralsystems.co.uk SEO score

83

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

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

Links are not crawlable

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 Rbcentralsystems.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 Rbcentralsystems.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

rbcentralsystems.co.uk

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