Tools & Wizards About Us

Report Summary

  • 65

    Performance

    Renders faster than
    78% of other websites

  • 65

    Accessibility

    Visual factors better than
    that of 30% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

deltagasandpower.co.uk

Green Energy Provider in London UK | Delta Gas and Power Limited

Page Load Speed

1.7 sec in total

First Response

395 ms

Resources Loaded

980 ms

Page Rendered

367 ms

About Website

Welcome to deltagasandpower.co.uk homepage info - get ready to check Delta Gas And Power best content right away, or after learning these important things about deltagasandpower.co.uk

Delta Gas and Power Limited is the Best Green Energy Provider in UK. We deliver you green energy for Domestic as well as for Business purpose. We strictly use renewable resources to make your life gre...

Visit deltagasandpower.co.uk

Key Findings

We analyzed Deltagasandpower.co.uk page load time and found that the first response time was 395 ms and then it took 1.3 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 30% of websites can load faster.

Performance Metrics

deltagasandpower.co.uk performance score

65

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.8 s

90/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

28/100

25%

SI (Speed Index)

Value4.2 s

77/100

10%

TBT (Total Blocking Time)

Value140 ms

95/100

30%

CLS (Cumulative Layout Shift)

Value0.282

43/100

15%

TTI (Time to Interactive)

Value6.0 s

64/100

10%

Network Requests Diagram

deltagasandpower.co.uk

395 ms

bootstrap.min.css

162 ms

base.css

169 ms

style.css

235 ms

font-awesome.min.css

59 ms

Our browser made a total of 32 requests to load all elements on the main page. We found that 66% of them (21 requests) were addressed to the original Deltagasandpower.co.uk, 16% (5 requests) were made to Cdnjs.cloudflare.com and 13% (4 requests) were made to Cdn.jsdelivr.net. The less responsive or slowest element that took the longest time to load (563 ms) belongs to the original domain Deltagasandpower.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 79.0 kB (13%)

Content Size

609.7 kB

After Optimization

530.7 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Deltagasandpower.co.uk main page is 609.7 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. 45% of websites need less resources to load. Images take 432.7 kB which makes up the majority of the site volume.

HTML Optimization

-85%

Potential reduce by 47.3 kB

  • Original 55.7 kB
  • After minification 41.2 kB
  • After compression 8.4 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. This page needs HTML code to be minified as it can gain 14.6 kB, which is 26% 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 47.3 kB or 85% of the original size.

Image Optimization

-0%

Potential reduce by 109 B

  • Original 432.7 kB
  • After minification 432.6 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. Delta Gas And Power images are well optimized though.

JavaScript Optimization

-23%

Potential reduce by 18.5 kB

  • Original 79.2 kB
  • After minification 79.2 kB
  • After compression 60.8 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 18.5 kB or 23% of the original size.

CSS Optimization

-31%

Potential reduce by 13.1 kB

  • Original 42.1 kB
  • After minification 42.1 kB
  • After compression 29.0 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. Deltagasandpower.co.uk needs all CSS files to be minified and compressed as it can save up to 13.1 kB or 31% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (58%)

Requests Now

24

After Optimization

10

  • Images
  • JavaScript
  • CSS

The browser has sent 24 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Delta Gas And Power. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

deltagasandpower.co.uk accessibility score

65

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

Image elements do not have [alt] attributes

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

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

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

deltagasandpower.co.uk best practices score

83

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

Page has valid source maps

SEO Factors

deltagasandpower.co.uk SEO score

85

Search Engine Optimization Advices

Crawling and Indexing

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

Impact

Issue

High

Links are not crawlable

Content Best Practices

Format your HTML in a way that enables crawlers to better understand your app’s content.

Impact

Issue

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

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 Deltagasandpower.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 Deltagasandpower.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 description is not detected on the main page of Delta Gas And Power. 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: