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onboardenergy.co.uk screenshot

Report Summary

  • 12

    Performance

    Renders faster than
    25% of other websites

  • 60

    Accessibility

    Visual factors better than
    that of 26% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 77

    SEO

    Google-friendlier than
    36% of websites

onboardenergy.co.uk

Onboard Energy – Onboardenergydirect

Page Load Speed

3.8 sec in total

First Response

246 ms

Resources Loaded

2.6 sec

Page Rendered

1 sec

onboardenergy.co.uk screenshot

About Website

Visit onboardenergy.co.uk now to see the best up-to-date Onboard Energy content and also check out these interesting facts you probably never knew about onboardenergy.co.uk

Visit onboardenergy.co.uk

Key Findings

We analyzed Onboardenergy.co.uk page load time and found that the first response time was 246 ms and then it took 3.6 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

onboardenergy.co.uk performance score

12

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value8.5 s

2/100

25%

SI (Speed Index)

Value8.0 s

22/100

10%

TBT (Total Blocking Time)

Value1,280 ms

18/100

30%

CLS (Cumulative Layout Shift)

Value0.491

17/100

15%

TTI (Time to Interactive)

Value18.8 s

3/100

10%

Network Requests Diagram

onboardenergy.co.uk

246 ms

onboardenergydirect.co.uk

394 ms

webfont.js

41 ms

timber.scss.css

40 ms

bootstrap.min.css

83 ms

Our browser made a total of 92 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Onboardenergy.co.uk, 79% (73 requests) were made to Onboardenergydirect.co.uk and 10% (9 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (1.4 sec) relates to the external source Onboardenergydirect.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 502.1 kB (17%)

Content Size

2.9 MB

After Optimization

2.4 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Onboardenergy.co.uk main page is 2.9 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. 75% 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 2.1 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 104.2 kB

  • Original 126.4 kB
  • After minification 97.6 kB
  • After compression 22.2 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. This page needs HTML code to be minified as it can gain 28.8 kB, which is 23% 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 104.2 kB or 82% of the original size.

Image Optimization

-2%

Potential reduce by 47.1 kB

  • Original 2.1 MB
  • After minification 2.0 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. Onboard Energy images are well optimized though.

JavaScript Optimization

-29%

Potential reduce by 96.8 kB

  • Original 331.1 kB
  • After minification 331.1 kB
  • After compression 234.4 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 96.8 kB or 29% of the original size.

CSS Optimization

-78%

Potential reduce by 254.0 kB

  • Original 326.3 kB
  • After minification 73.5 kB
  • After compression 72.3 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. Onboardenergy.co.uk needs all CSS files to be minified and compressed as it can save up to 254.0 kB or 78% of the original size.

Requests Breakdown

Number of requests can be reduced by 42 (55%)

Requests Now

76

After Optimization

34

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 76 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Onboard 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 31 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

onboardenergy.co.uk

onboardenergy.co.uk

246 ms

onboardenergydirect.co.uk

onboardenergydirect.co.uk

394 ms

webfont.js

webfont.js

41 ms

timber.scss.css

timber.scss.css

40 ms

bootstrap.min.css

bootstrap.min.css

83 ms

owl.theme.min.css

owl.theme.min.css

46 ms

owl.transitions.min.css

owl.transitions.min.css

47 ms

owl.carousel.min.css

owl.carousel.min.css

45 ms

jquery.fancybox.min.css

jquery.fancybox.min.css

81 ms

threesixty.css

threesixty.css

89 ms

theme.css

theme.css

158 ms

ionicons.css

ionicons.css

90 ms

icomoon.css

icomoon.css

89 ms

engo-customize.scss.css

engo-customize.scss.css

98 ms

preloads.js

preloads.js

108 ms

load_feature-9f951eb7d8d53973c719de211f807d63af81c644e5b9a6ae72661ac408d472f6.js

load_feature-9f951eb7d8d53973c719de211f807d63af81c644e5b9a6ae72661ac408d472f6.js

108 ms

features-1c0b396bd4d054b94abae1eb6a1bd6ba47beb35525c57a217c77a862ff06d83f.js

features-1c0b396bd4d054b94abae1eb6a1bd6ba47beb35525c57a217c77a862ff06d83f.js

107 ms

styles.css

styles.css

107 ms

jquery.min.js

jquery.min.js

44 ms

api.jquery-b0af070cfe3f5cf7c92f9e2a5da2665ee07ed2aad63bb408f8d6672f894a5996.js

api.jquery-b0af070cfe3f5cf7c92f9e2a5da2665ee07ed2aad63bb408f8d6672f894a5996.js

117 ms

modernizr-2.8.3.min.js

modernizr-2.8.3.min.js

119 ms

option_selection-86cdd286ddf3be7e25d68b9fc5965d7798a3ff6228ff79af67b3f4e41d6a34be.js

option_selection-86cdd286ddf3be7e25d68b9fc5965d7798a3ff6228ff79af67b3f4e41d6a34be.js

115 ms

fastclick.js

fastclick.js

111 ms

currencies.js

currencies.js

412 ms

jquery.currencies.min.js

jquery.currencies.min.js

137 ms

timber.js

timber.js

134 ms

handlebars.min.js

handlebars.min.js

135 ms

ajax-cart.js

ajax-cart.js

134 ms

bootstrap.min.js

bootstrap.min.js

408 ms

slick.min.js

slick.min.js

408 ms

instafeed.min.js

instafeed.min.js

406 ms

owl.carousel.min.js

owl.carousel.min.js

406 ms

jquery.fancybox.min.js

jquery.fancybox.min.js

409 ms

engo-plugins.js

engo-plugins.js

410 ms

quickview.js

quickview.js

409 ms

collection.js

collection.js

411 ms

threesixty.min.js

threesixty.min.js

412 ms

engo-scripts.js

engo-scripts.js

411 ms

css

css

72 ms

gtm.js

gtm.js

302 ms

trekkie.storefront.dd626a6a6fbdab104f8779acc4331c330134c832.min.js

trekkie.storefront.dd626a6a6fbdab104f8779acc4331c330134c832.min.js

118 ms

shop_events_listener-61fa9e0a912c675e178777d2b27f6cbd482f8912a6b0aa31fa3515985a8cd626.js

shop_events_listener-61fa9e0a912c675e178777d2b27f6cbd482f8912a6b0aa31fa3515985a8cd626.js

119 ms

shopify-boomerang-1.0.0.min.js

shopify-boomerang-1.0.0.min.js

117 ms

FOOTER-LOGO.png

FOOTER-LOGO.png

408 ms

onboard-energy.jpg

onboard-energy.jpg

272 ms

victron-hero.jpg

victron-hero.jpg

270 ms

100766_ABC_Onboard_website_banner_Installation_1400x600_3f341a5f-b1fb-4002-996d-e549551992a5.png

100766_ABC_Onboard_website_banner_Installation_1400x600_3f341a5f-b1fb-4002-996d-e549551992a5.png

273 ms

victron.png

victron.png

343 ms

renewables.png

renewables.png

271 ms

installation.png

installation.png

345 ms

DC51140_Image.webp

DC51140_Image.webp

344 ms

DB22200_Ext.jpg

DB22200_Ext.jpg

343 ms

DF95121_Image.png

DF95121_Image.png

725 ms

DC33102_ZoomExt.jpg

DC33102_ZoomExt.jpg

343 ms

DC36160_Image.png

DC36160_Image.png

1353 ms

DA72115_Image.png

DA72115_Image.png

368 ms

DC54350_Image.webp

DC54350_Image.webp

367 ms

DD00259_Ext.jpg

DD00259_Ext.jpg

508 ms

DD00258_Ext.jpg

DD00258_Ext.jpg

398 ms

DD00256_Ext.jpg

DD00256_Ext.jpg

507 ms

DC51143_Image.webp

DC51143_Image.webp

412 ms

DC41110_Ext.jpg

DC41110_Ext.jpg

561 ms

DC39105_Image.png

DC39105_Image.png

574 ms

DC33108_Ext.jpg

DC33108_Ext.jpg

508 ms

DC35090_ZoomExt.jpg

DC35090_ZoomExt.jpg

508 ms

DC35066_Ext.jpg

DC35066_Ext.jpg

474 ms

DC35060_Ext.jpg

DC35060_Ext.jpg

482 ms

DC33109_ZoomExt.jpg

DC33109_ZoomExt.jpg

495 ms

Proud_Member_of_British_Marine_logo_-_RGB_for_web.jpg

Proud_Member_of_British_Marine_logo_-_RGB_for_web.jpg

752 ms

bmea.png

bmea.png

750 ms

victron-energy.png

victron-energy.png

560 ms

favicon.png

favicon.png

546 ms

pxiGyp8kv8JHgFVrLPTucHtG.woff

pxiGyp8kv8JHgFVrLPTucHtG.woff

93 ms

pxiByp8kv8JHgFVrLFj_Z1xlEw.woff

pxiByp8kv8JHgFVrLFj_Z1xlEw.woff

92 ms

pxiByp8kv8JHgFVrLDz8Z1xlEw.woff

pxiByp8kv8JHgFVrLDz8Z1xlEw.woff

162 ms

pxiEyp8kv8JHgFVrJJfedA.woff

pxiEyp8kv8JHgFVrJJfedA.woff

185 ms

pxiByp8kv8JHgFVrLGT9Z1xlEw.woff

pxiByp8kv8JHgFVrLGT9Z1xlEw.woff

188 ms

pxiByp8kv8JHgFVrLEj6Z1xlEw.woff

pxiByp8kv8JHgFVrLEj6Z1xlEw.woff

186 ms

pxiByp8kv8JHgFVrLCz7Z1xlEw.woff

pxiByp8kv8JHgFVrLCz7Z1xlEw.woff

185 ms

pxiByp8kv8JHgFVrLDD4Z1xlEw.woff

pxiByp8kv8JHgFVrLDD4Z1xlEw.woff

187 ms

pxiByp8kv8JHgFVrLBT5Z1xlEw.woff

pxiByp8kv8JHgFVrLBT5Z1xlEw.woff

187 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

607 ms

ionicons.ttf

ionicons.ttf

574 ms

select-arrow.png

select-arrow.png

602 ms

js

js

65 ms

analytics.js

analytics.js

19 ms

collect

collect

14 ms

ionicons.woff

ionicons.woff

88 ms

fontawesome-webfont.ttf

fontawesome-webfont.ttf

74 ms

fontawesome-webfont.svg

fontawesome-webfont.svg

79 ms

ionicons.svg

ionicons.svg

137 ms

script.js

script.js

97 ms

Accessibility Review

onboardenergy.co.uk accessibility score

60

Accessibility Issues

ARIA

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

Impact

Issue

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

ARIA input fields do not have accessible names

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[aria-*] attributes do not have valid values

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

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

Best Practices

onboardenergy.co.uk best practices score

75

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

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

onboardenergy.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

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 Onboardenergy.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 Onboardenergy.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

onboardenergy.co.uk

Open Graph description is not detected on the main page of Onboard 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: