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esso.co.uk screenshot

Report Summary

  • 44

    Performance

    Renders faster than
    63% of other websites

  • 100

    Accessibility

    Visual factors better than
    that of 97% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

esso.co.uk

Petrol and Diesel Service Stations in the United Kingdom | Esso

Page Load Speed

16.9 sec in total

First Response

474 ms

Resources Loaded

16.1 sec

Page Rendered

304 ms

esso.co.uk screenshot

About Website

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

Find your nearest petrol service station, learn fuel efficiency tips, and read more about the quality petrol and diesel available at Esso in the United Kingdom.

Visit esso.co.uk

Key Findings

We analyzed Esso.co.uk page load time and found that the first response time was 474 ms and then it took 16.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 95% of websites can load faster.

Performance Metrics

esso.co.uk performance score

44

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value9.4 s

1/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value350 ms

73/100

30%

CLS (Cumulative Layout Shift)

Value0.311

38/100

15%

TTI (Time to Interactive)

Value8.3 s

39/100

10%

Network Requests Diagram

www.esso.co.uk

474 ms

en-gb

5236 ms

all.min.css

46 ms

optimized-min.css

58 ms

optimized-min.css

40 ms

Our browser made a total of 40 requests to load all elements on the main page. We found that 78% of them (31 requests) were addressed to the original Esso.co.uk, 8% (3 requests) were made to Cdn.cookielaw.org and 8% (3 requests) were made to Cdn.appdynamics.com. The less responsive or slowest element that took the longest time to load (9.2 sec) belongs to the original domain Esso.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 997.6 kB (56%)

Content Size

1.8 MB

After Optimization

773.2 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Esso.co.uk main page is 1.8 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. 70% of websites need less resources to load. Javascripts take 1.4 MB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 68.6 kB

  • Original 88.2 kB
  • After minification 82.9 kB
  • After compression 19.6 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 68.6 kB or 78% of the original size.

Image Optimization

-24%

Potential reduce by 36.0 kB

  • Original 150.0 kB
  • After minification 114.0 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. Obviously, Esso needs image optimization as it can save up to 36.0 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-64%

Potential reduce by 891.2 kB

  • Original 1.4 MB
  • After minification 1.4 MB
  • After compression 500.7 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 891.2 kB or 64% of the original size.

CSS Optimization

-1%

Potential reduce by 1.8 kB

  • Original 140.7 kB
  • After minification 140.7 kB
  • After compression 139.0 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. Esso.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 22 (73%)

Requests Now

30

After Optimization

8

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 30 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Esso. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 19 to 1 for JavaScripts and from 5 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

www.esso.co.uk

www.esso.co.uk

474 ms

en-gb

en-gb

5236 ms

all.min.css

all.min.css

46 ms

optimized-min.css

optimized-min.css

58 ms

optimized-min.css

optimized-min.css

40 ms

VisitorIdentification.js

VisitorIdentification.js

23 ms

otSDKStub.js

otSDKStub.js

41 ms

onetrust-pagereload.js

onetrust-pagereload.js

106 ms

adrum-20.6.0.3177.js

adrum-20.6.0.3177.js

29 ms

jquery.min.js

jquery.min.js

41 ms

jquery-ui.min.js

jquery-ui.min.js

149 ms

51e05984-4653-408c-b457-da404d6626bd.json

51e05984-4653-408c-b457-da404d6626bd.json

105 ms

icons.png

icons.png

69 ms

esso-fuels-en-gb.png

esso-fuels-en-gb.png

70 ms

popper.min.js

popper.min.js

175 ms

bootstrap.min.js

bootstrap.min.js

66 ms

optimized-min.js

optimized-min.js

68 ms

jquery.validate.unobtrusive.min.js

jquery.validate.unobtrusive.min.js

70 ms

jquery.unobtrusive-ajax.min.js

jquery.unobtrusive-ajax.min.js

66 ms

form.validate.js

form.validate.js

68 ms

form.tracking.js

form.tracking.js

68 ms

sitecore.forms.customFields.js

sitecore.forms.customFields.js

70 ms

form.conditions.js

form.conditions.js

76 ms

mobil_grey.png

mobil_grey.png

68 ms

esso_grey.png

esso_grey.png

68 ms

footer-logos.svg

footer-logos.svg

378 ms

otBannerSdk.js

otBannerSdk.js

23 ms

web-vitals

web-vitals

97 ms

optimized-min.css

optimized-min.css

62 ms

fa-regular-400.woff

fa-regular-400.woff

297 ms

fa-solid-900.woff

fa-solid-900.woff

89 ms

web-vitals@4.2.2

web-vitals@4.2.2

17 ms

web-vitals.iife.js

web-vitals.iife.js

13 ms

english.min.css

english.min.css

100 ms

adrum-ext.a5c406ae5697070ded3eee8312968928.js

adrum-ext.a5c406ae5697070ded3eee8312968928.js

5 ms

EMPrint-Regular.woff

EMPrint-Regular.woff

9177 ms

EMprint-Semibold.woff

EMprint-Semibold.woff

81 ms

EMPrint-Light.woff

EMPrint-Light.woff

9124 ms

em.woff

em.woff

8832 ms

adrum-xd.a5c406ae5697070ded3eee8312968928.html

adrum-xd.a5c406ae5697070ded3eee8312968928.html

6 ms

Accessibility Review

esso.co.uk accessibility score

100

Accessibility Issues

Best Practices

esso.co.uk best practices score

75

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

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

SEO Factors

esso.co.uk SEO score

77

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

Document doesn't have a valid hreflang

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 doesn't use 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 Esso.co.uk 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 Esso.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

esso.co.uk

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