Tools & Wizards About Us
cooke.co.uk screenshot

Report Summary

  • 34

    Performance

    Renders faster than
    54% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 79

    SEO

    Google-friendlier than
    40% of websites

cooke.co.uk

Cooke Fuels - Red Diesel, Heating Oil & Lubricant Suppliers

Page Load Speed

3.1 sec in total

First Response

388 ms

Resources Loaded

1.7 sec

Page Rendered

1 sec

cooke.co.uk screenshot

About Website

Click here to check amazing Cooke content for United Kingdom. Otherwise, check out these important facts you probably never knew about cooke.co.uk

Cooke Fuels is one of the UK's oldest heating oil, lubricant and red diesel suppliers, fueling your success since 1845.

Visit cooke.co.uk

Key Findings

We analyzed Cooke.co.uk page load time and found that the first response time was 388 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

cooke.co.uk performance score

34

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.4 s

36/100

10%

LCP (Largest Contentful Paint)

Value4.5 s

36/100

25%

SI (Speed Index)

Value5.8 s

50/100

10%

TBT (Total Blocking Time)

Value3,530 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.005

100/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

www.crownoil.co.uk

388 ms

gtm.js

87 ms

css2

49 ms

app.css

139 ms

front-page.css

210 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 0% of them (0 request) were addressed to the original Cooke.co.uk, 16% (7 requests) were made to Cdn.crownoil.co.uk and 7% (3 requests) were made to Tree-nation.com. The less responsive or slowest element that took the longest time to load (641 ms) relates to the external source Crownoil.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 499.5 kB (24%)

Content Size

2.0 MB

After Optimization

1.5 MB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Cooke.co.uk main page is 2.0 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. 50% of websites need less resources to load. Images take 2.0 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 63.2 kB

  • Original 81.5 kB
  • After minification 81.5 kB
  • After compression 18.3 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. 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 63.2 kB or 78% of the original size.

Image Optimization

-22%

Potential reduce by 436.2 kB

  • Original 2.0 MB
  • After minification 1.5 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, Cooke needs image optimization as it can save up to 436.2 kB or 22% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-41%

Potential reduce by 162 B

  • Original 396 B
  • After minification 396 B
  • After compression 234 B

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 162 B or 41% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

43

After Optimization

43

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 43 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Cooke. According to our analytics all requests are already optimized.

Network Requests Diagram

www.crownoil.co.uk

www.crownoil.co.uk

388 ms

gtm.js

gtm.js

87 ms

css2

css2

49 ms

app.css

app.css

139 ms

front-page.css

front-page.css

210 ms

google-reviews-april-2024.png

google-reviews-april-2024.png

111 ms

carbon-neutral.webp

carbon-neutral.webp

111 ms

logo.jpg

logo.jpg

365 ms

scene11-320.jpg

scene11-320.jpg

361 ms

truck1-300.png

truck1-300.png

371 ms

truck15-300.png

truck15-300.png

369 ms

truck4-300.png

truck4-300.png

429 ms

truck3-300.png

truck3-300.png

364 ms

truck2-300.png

truck2-300.png

420 ms

hvo-fuel-circle-leaf.png

hvo-fuel-circle-leaf.png

310 ms

Crown-Oil-old-tanker.jpg

Crown-Oil-old-tanker.jpg

425 ms

Paper-Mill.jpg

Paper-Mill.jpg

500 ms

crown-oil-renewable-fuels-supplier.jpg

crown-oil-renewable-fuels-supplier.jpg

377 ms

Tanker-green-road.jpg

Tanker-green-road.jpg

444 ms

label-co2-website-white-en.png

label-co2-website-white-en.png

77 ms

track.js

track.js

78 ms

Fleet-3.jpg

Fleet-3.jpg

72 ms

HVO-Tanker-back.jpg

HVO-Tanker-back.jpg

59 ms

Account-Management.jpg

Account-Management.jpg

58 ms

HVO-tanker.jpg

HVO-tanker.jpg

62 ms

co2-savings.png

co2-savings.png

561 ms

CS-History-NG-01.png

CS-History-NG-01.png

501 ms

crown-enviro.png

crown-enviro.png

437 ms

beesley-fuels.svg

beesley-fuels.svg

486 ms

speedy-fuels.svg

speedy-fuels.svg

504 ms

crown-oil-sustainability.png

crown-oil-sustainability.png

507 ms

carbon-neutral-2023.webp

carbon-neutral-2023.webp

556 ms

zemo-partnership.png

zemo-partnership.png

558 ms

rfas-co.jpg

rfas-co.jpg

570 ms

iscc.jpg

iscc.jpg

573 ms

ccss.png

ccss.png

574 ms

oftec.png

oftec.png

625 ms

uvdb.png

uvdb.png

627 ms

ukifda-new.jpg

ukifda-new.jpg

628 ms

bsi.webp

bsi.webp

637 ms

ukifda-winner.jpg

ukifda-winner.jpg

641 ms

business-champion-award.png

business-champion-award.png

641 ms

history-bg.jpg

history-bg.jpg

127 ms

64a413d526be2

64a413d526be2

130 ms

Accessibility Review

cooke.co.uk accessibility score

91

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.

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

Image elements do not have [alt] attributes

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

cooke.co.uk 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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

cooke.co.uk SEO score

79

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

High

Image elements do not have [alt] attributes

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

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 Cooke.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 Cooke.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

cooke.co.uk

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