Access bristol-energy.co.uk. Bristol Energy: Electricity and Gas for Social Good

name

value

score

weighting

FCP (First Contentful Paint)

Value8.0 s

0/100

10%

LCP (Largest Contentful Paint)

Value16.3 s

0/100

25%

SI (Speed Index)

Value11.3 s

5/100

10%

TBT (Total Blocking Time)

Value1,250 ms

19/100

30%

CLS (Cumulative Layout Shift)

Value0.013

100/100

15%

TTI (Time to Interactive)

Value18.7 s

3/100

10%

www.bristol-energy.co.uk

204 ms

system.base.css

19 ms

comment.css

32 ms

date.css

36 ms

datepicker.1.7.css

26 ms

Our browser made a total of 93 requests to load all elements on the main page. We found that 74% of them (69 requests) were addressed to the original Bristol-energy.co.uk, 5% (5 requests) were made to Bristol-web-live.s3-eu-west-1.amazonaws.com and 5% (5 requests) were made to Youtube.com. The less responsive or slowest element that took the longest time to load (683 ms) relates to the external source Bristol-web-live.s3-eu-west-1.amazonaws.com.

Content Size

976.9 kB

After Optimization

858.2 kB

In fact, the total size of Bristol-energy.co.uk main page is 976.9 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. 80% 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 530.0 kB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 39.1 kB

Original 48.4 kB
After minification 40.0 kB
After compression 9.3 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 8.4 kB, which is 17% 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 39.1 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 6.0 kB

Original 530.0 kB
After minification 524.0 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. Bristol Energy images are well optimized though.

JavaScript Optimization

-22%

Potential reduce by 73.5 kB

Original 331.8 kB
After minification 328.7 kB
After compression 258.2 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 73.5 kB or 22% of the original size.

CSS Optimization

-0%

Potential reduce by 64 B

Original 66.8 kB
After minification 66.8 kB
After compression 66.7 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. Bristol-energy.co.uk has all CSS files already compressed.

Requests Now

After Optimization

The browser has sent 81 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Bristol Energy. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 27 to 1 for JavaScripts and from 35 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

<frame> or <iframe> elements do not have a title

High

Links do not have a discernible name

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

High

Some elements have a [tabindex] value greater than 0

Areas of Improvement

High

Does not use HTTPS

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

High

Page has valid source maps

Search Engine Optimization Advices

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

High

Links do not have descriptive text

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

High

Links are not crawlable

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/).

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 Bristol-energy.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 Bristol-energy.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

bristol-energy.co.uk

Open Graph description is not detected on the main page of Bristol Energy. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

Bristol Energy: Electricity and Gas for Social Good

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

www.bristol-energy.co.uk

system.base.css

comment.css

date.css

datepicker.1.7.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

www.bristol-energy.co.uk

system.base.css

comment.css

date.css

datepicker.1.7.css

field.css

logintoboggan.css

node.css

search.css

user.css

views.css

ckeditor.css

ctools.css

panels.css

taxonomy_access.css

absolute_messages.css

eu_cookie_compliance.css

styles.css

google_tag.script.js

jquery.js

jquery-migrate-1.2.1.js

jquery-extend-3.4.0.js

jquery-html-prefilter-3.5.0-backport.js

jquery.once.js

drupal.js

jquery.cookie-1.4.1.min.js

absolute_messages.js

field_group.js

3988552ea6.js

script.js

jquery.inview.js

animations.js

postcode.js

mtiFontTrackingCode.js

datatable.js

dashboard.js

switch-test.js

banner.js

email-decode.min.js

normalize.css

fonts.css

portal.css

misc.css