Tools & Wizards About Us
vitalenergi.co.uk screenshot

Report Summary

  • 38

    Performance

    Renders faster than
    57% of other websites

  • 81

    Accessibility

    Visual factors better than
    that of 51% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 98

    SEO

    Google-friendlier than
    92% of websites

vitalenergi.co.uk

Heat Pumps | Solar | Energy Storage | Vital Energi

Page Load Speed

4.8 sec in total

First Response

780 ms

Resources Loaded

3.8 sec

Page Rendered

287 ms

vitalenergi.co.uk screenshot

About Website

Visit vitalenergi.co.uk now to see the best up-to-date Vital Energi content for United Kingdom and also check out these interesting facts you probably never knew about vitalenergi.co.uk

Vital Energi provides low carbon energy generation, energy distribution & energy management solutions across sectors. Heat networks, commercial heat pumps, solar and battery storage energy services.

Visit vitalenergi.co.uk

Key Findings

We analyzed Vitalenergi.co.uk page load time and found that the first response time was 780 ms and then it took 4.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

vitalenergi.co.uk performance score

38

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.8 s

4/100

10%

LCP (Largest Contentful Paint)

Value14.6 s

0/100

25%

SI (Speed Index)

Value14.4 s

1/100

10%

TBT (Total Blocking Time)

Value340 ms

74/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value18.5 s

3/100

10%

Network Requests Diagram

www.vitalenergi.co.uk

780 ms

kln3xwy.js

223 ms

main.min.css

120 ms

font-awesome.min.css

201 ms

api.js

71 ms

Our browser made a total of 59 requests to load all elements on the main page. We found that 2% of them (1 request) were addressed to the original Vitalenergi.co.uk, 47% (28 requests) were made to Vitalenergi-prod.s3.amazonaws.com and 8% (5 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (780 ms) belongs to the original domain Vitalenergi.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.4 MB (54%)

Content Size

2.6 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Vitalenergi.co.uk main page is 2.6 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. 40% of websites need less resources to load. Images take 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-77%

Potential reduce by 42.8 kB

  • Original 55.7 kB
  • After minification 46.5 kB
  • After compression 12.9 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 9.2 kB, which is 16% 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 42.8 kB or 77% of the original size.

Image Optimization

-50%

Potential reduce by 889.9 kB

  • Original 1.8 MB
  • After minification 896.4 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, Vital Energi needs image optimization as it can save up to 889.9 kB or 50% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-61%

Potential reduce by 257.9 kB

  • Original 424.3 kB
  • After minification 422.5 kB
  • After compression 166.4 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 257.9 kB or 61% of the original size.

CSS Optimization

-61%

Potential reduce by 192.1 kB

  • Original 312.7 kB
  • After minification 312.0 kB
  • After compression 120.7 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. Vitalenergi.co.uk needs all CSS files to be minified and compressed as it can save up to 192.1 kB or 61% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (36%)

Requests Now

50

After Optimization

32

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 50 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Vital Energi. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.vitalenergi.co.uk

www.vitalenergi.co.uk

780 ms

kln3xwy.js

kln3xwy.js

223 ms

main.min.css

main.min.css

120 ms

font-awesome.min.css

font-awesome.min.css

201 ms

api.js

api.js

71 ms

jquery.min.js

jquery.min.js

141 ms

scripts.min.js

scripts.min.js

99 ms

jquery.cookie.min.js

jquery.cookie.min.js

61 ms

jquery.bxslider.min.js

jquery.bxslider.min.js

127 ms

conversion.js

conversion.js

73 ms

d

d

82 ms

analytics.js

analytics.js

80 ms

top-header_help.png

top-header_help.png

109 ms

top-header_staff.png

top-header_staff.png

65 ms

logo.svg

logo.svg

95 ms

home-page-slider-1.jpg.1600x450_q85_crop.jpg

home-page-slider-1.jpg.1600x450_q85_crop.jpg

143 ms

slider_overlay.png

slider_overlay.png

66 ms

home-page-slider-2.jpg.1600x450_q85_crop.jpg

home-page-slider-2.jpg.1600x450_q85_crop.jpg

143 ms

CGAVarenaVE.jpg.1600x450_q85_crop.jpg

CGAVarenaVE.jpg.1600x450_q85_crop.jpg

144 ms

MediaCityUK.jpg.1600x450_q85_crop.jpg

MediaCityUK.jpg.1600x450_q85_crop.jpg

203 ms

royalarsenalthumbnail.jpg.555x300_q85_crop.jpg

royalarsenalthumbnail.jpg.555x300_q85_crop.jpg

155 ms

haggerstonthumbnail.jpg.555x300_q85_crop.jpg

haggerstonthumbnail.jpg.555x300_q85_crop.jpg

142 ms

MediaCityUK.jpg.555x300_q85_crop.jpg

MediaCityUK.jpg.555x300_q85_crop.jpg

238 ms

footer-email.png

footer-email.png

175 ms

footer-phone.png

footer-phone.png

151 ms

cta-phone-icon.png

cta-phone-icon.png

191 ms

recaptcha__en.js

recaptcha__en.js

95 ms

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4s8y2w0CKLLbHUMsutsNIqq2VbY6111ttgo002y7HFVttstyPswS677bHXPvsdcNAhhx1x1DHHnXDSqbA3Z5x1znkXXHTJZVdcdc11N9x0q7gn7rrnvgceeuSxJ3I9DbuX75nnXnipwCuFXnvjrXfe++CjIp989uUPc+hxIgA=

31 ms

kf+LPMtsNAiiy2x1DLLrbDSKqtlW2OtddbbYKNNNsuxxVbbbLcj7MEuu+2x1z77HXDQIYcdcdQxx51w0qmwN2ecdc55F1x0yWVXXHXNdTfcdKu4J+66574HHnrksSdyPQ27l++Z5154qcArhV5746133vvgoyKffPblD3PocSIA

kf+LPMtsNAiiy2x1DLLrbDSKqtlW2OtddbbYKNNNsuxxVbbbLcj7MEuu+2x1z77HXDQIYcdcdQxx51w0qmwN2ecdc55F1x0yWVXXHXNdTfcdKu4J+66574HHnrksSdyPQ27l++Z5154qcArhV5746133vvgoyKffPblD3PocSIA

30 ms

izzLbDQIostsdQyy62w0iqrZVtjrXXW22CjTTbLscVW22y3I+zBLrvtsdc++x1w0CGHHXHUMcedcNKpsDdnnHXOeRdcdMllV1x1zXU33HSruCfuuue+Bx565LEncj0Nu5fvmedeeKnAK4Vee+Otd9774KMin3z25Q9z6HEiAA==

izzLbDQIostsdQyy62w0iqrZVtjrXXW22CjTTbLscVW22y3I+zBLrvtsdc++x1w0CGHHXHUMcedcNKpsDdnnHXOeRdcdMllV1x1zXU33HSruCfuuue+Bx565LEncj0Nu5fvmedeeKnAK4Vee+Otd9774KMin3z25Q9z6HEiAA==

29 ms

izzLbDQIostsdQyy62w0iqrZVtjrXXW22CjTTbLscVW22y3I+zBLrvtsdc++x1w0CGHHXHUMcedcNKpsDdnnHXOeRdcdMllV1x1zXU33HSruCfuuue+Bx565LEncj0Nu5fvmedeeKnAK4Vee+Otd9774KMin3z25Q9z6HEiAA==

izzLbDQIostsdQyy62w0iqrZVtjrXXW22CjTTbLscVW22y3I+zBLrvtsdc++x1w0CGHHXHUMcedcNKpsDdnnHXOeRdcdMllV1x1zXU33HSruCfuuue+Bx565LEncj0Nu5fvmedeeKnAK4Vee+Otd9774KMin3z25Q9z6HEiAA==

29 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

180 ms

getVisitorParams.js

getVisitorParams.js

454 ms

0890.js

0890.js

82 ms

collect

collect

8 ms

collect

collect

77 ms

visitorHeartbeat.js

visitorHeartbeat.js

237 ms

getVisitorNumber.php

getVisitorNumber.php

368 ms

ra-bootstrap.min.js

ra-bootstrap.min.js

618 ms

GaryFielding.jpg.70x70_q85_crop.jpg

GaryFielding.jpg.70x70_q85_crop.jpg

74 ms

s

s

135 ms

anchor

anchor

71 ms

IanWhitelock.jpg.70x70_q85_crop.jpg

IanWhitelock.jpg.70x70_q85_crop.jpg

26 ms

StephenBeckett.jpg.70x70_q85_crop.jpg

StephenBeckett.jpg.70x70_q85_crop.jpg

29 ms

NickGosling.jpg.70x70_q85_crop.jpg

NickGosling.jpg.70x70_q85_crop.jpg

34 ms

PaulKay.jpg.70x70_q85_crop.jpg

PaulKay.jpg.70x70_q85_crop.jpg

38 ms

GaryLeSeur.jpg.70x70_q85_crop.jpg

GaryLeSeur.jpg.70x70_q85_crop.jpg

33 ms

StevenDaniels.jpg.70x70_q85_crop.jpg

StevenDaniels.jpg.70x70_q85_crop.jpg

116 ms

bx_loader.gif

bx_loader.gif

117 ms

u

u

40 ms

p.gif

p.gif

187 ms

28 ms

styles__ltr.css

styles__ltr.css

5 ms

s5G5viF55Zd620FDUE2o6cwnsrT1pToaK6kVmkloWvE.js

s5G5viF55Zd620FDUE2o6cwnsrT1pToaK6kVmkloWvE.js

12 ms

webworker.js

webworker.js

53 ms

logo_48.png

logo_48.png

11 ms

zN7GBFwfMP4uA6AR0HCoLQ.ttf

zN7GBFwfMP4uA6AR0HCoLQ.ttf

64 ms

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

RxZJdnzeo3R5zSexge8UUaCWcynf_cDxXwCLxiixG1c.ttf

67 ms

recaptcha__en.js

recaptcha__en.js

4 ms

Accessibility Review

vitalenergi.co.uk accessibility score

81

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

Form elements do not have associated labels

High

Links do not have a discernible name

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best Practices

vitalenergi.co.uk best practices score

67

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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

vitalenergi.co.uk SEO score

98

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 Vitalenergi.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 Vitalenergi.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

vitalenergi.co.uk

Open Graph description is not detected on the main page of Vital Energi. 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: