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d-energi.com screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 90

    Accessibility

    Visual factors better than
    that of 74% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

d-energi.com

Business Electricity & Gas | UK Business Energy Supplier

Page Load Speed

3.1 sec in total

First Response

730 ms

Resources Loaded

1.9 sec

Page Rendered

444 ms

d-energi.com screenshot

About Website

Welcome to d-energi.com homepage info - get ready to check D Energi best content right away, or after learning these important things about d-energi.com

D-ENERGi is an Ofgem registered business gas shipper, business gas supplier & business electricity supplier. Switch business energy supplier for cheaper cost.

Visit d-energi.com

Key Findings

We analyzed D-energi.com page load time and found that the first response time was 730 ms and then it took 2.4 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 45% of websites can load faster.

Performance Metrics

d-energi.com performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

32/100

10%

LCP (Largest Contentful Paint)

Value3.7 s

58/100

25%

SI (Speed Index)

Value4.0 s

80/100

10%

TBT (Total Blocking Time)

Value120 ms

97/100

30%

CLS (Cumulative Layout Shift)

Value0.002

100/100

15%

TTI (Time to Interactive)

Value3.8 s

89/100

10%

Network Requests Diagram

www.d-energi.com

730 ms

pylons-blue-4.jpg

1050 ms

icomoon.ttf

144 ms

8a378ab12259f587ffd08a3e840545ae.icomoon.ttf

249 ms

862f4c5c9473e45860e3893b6a5f46f0.fontawesome-webfont.ttf

273 ms

Our browser made a total of 5 requests to load all elements on the main page. We found that 40% of them (2 requests) were addressed to the original D-energi.com, 60% (3 requests) were made to Cdn-iladmip.nitrocdn.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain D-energi.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 580.2 kB (46%)

Content Size

1.3 MB

After Optimization

675.1 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of D-energi.com main page is 1.3 MB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only a small number of websites need less resources to load. Javascripts take 572.4 kB which makes up the majority of the site volume.

HTML Optimization

-80%

Potential reduce by 249.1 kB

  • Original 311.2 kB
  • After minification 311.2 kB
  • After compression 62.2 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 249.1 kB or 80% of the original size.

Image Optimization

-7%

Potential reduce by 27.4 kB

  • Original 371.7 kB
  • After minification 344.2 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. D Energi images are well optimized though.

JavaScript Optimization

-53%

Potential reduce by 303.7 kB

  • Original 572.4 kB
  • After minification 572.3 kB
  • After compression 268.6 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 303.7 kB or 53% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

0

After Optimization

0

Besides the initial HTML request, no CSS, Javascripts, AJAX or image files were requested in the course of web page rendering.

Network Requests Diagram

www.d-energi.com

www.d-energi.com

730 ms

pylons-blue-4.jpg

pylons-blue-4.jpg

1050 ms

icomoon.ttf

icomoon.ttf

144 ms

8a378ab12259f587ffd08a3e840545ae.icomoon.ttf

8a378ab12259f587ffd08a3e840545ae.icomoon.ttf

249 ms

862f4c5c9473e45860e3893b6a5f46f0.fontawesome-webfont.ttf

862f4c5c9473e45860e3893b6a5f46f0.fontawesome-webfont.ttf

273 ms

Accessibility Review

d-energi.com accessibility score

90

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.

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

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

Best Practices

d-energi.com best practices score

83

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

Browser errors were logged to the console

SEO Factors

d-energi.com SEO score

93

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

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise D-energi.com 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 D-energi.com 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

d-energi.com

Open Graph data is detected on the main page of PARSED_DOMAIN, but there is no image specified in description. It would be a good idea for the website admin to select a nice image that can properly represent the website in Open Graph data, otherwise the first found image will be taken for this purpose and social media information block will look like this: