Tools & Wizards About Us
energylightbulbs.co.uk screenshot

Report Summary

  • 7

    Performance

    Renders faster than
    22% of other websites

  • 86

    Accessibility

    Visual factors better than
    that of 61% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 85

    SEO

    Google-friendlier than
    55% of websites

energylightbulbs.co.uk

Energy Saving Light Bulbs - Halogen Bulbs - Gu10 Bulb - LED Hut

Page Load Speed

3.7 sec in total

First Response

260 ms

Resources Loaded

3.3 sec

Page Rendered

213 ms

energylightbulbs.co.uk screenshot

About Website

Welcome to energylightbulbs.co.uk homepage info - get ready to check Energy Light Bulbs best content for United Kingdom right away, or after learning these important things about energylightbulbs.co.uk

Buy energy saving light bulbs, GU10 halogen bulbs, LED flood lights, G9 light bulbs, G9 LED bulb, LED hut and LED strip lights With FREE delivery on every order.

Visit energylightbulbs.co.uk

Key Findings

We analyzed Energylightbulbs.co.uk page load time and found that the first response time was 260 ms and then it took 3.5 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

energylightbulbs.co.uk performance score

7

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

46/100

10%

LCP (Largest Contentful Paint)

Value23.8 s

0/100

25%

SI (Speed Index)

Value8.9 s

15/100

10%

TBT (Total Blocking Time)

Value2,770 ms

3/100

30%

CLS (Cumulative Layout Shift)

Value0.894

3/100

15%

TTI (Time to Interactive)

Value26.5 s

0/100

10%

Network Requests Diagram

energylightbulbs.co.uk

260 ms

www.energylightbulbs.co.uk

284 ms

style.css

188 ms

drop_down.css

191 ms

jquery.min.js

74 ms

Our browser made a total of 90 requests to load all elements on the main page. We found that 71% of them (64 requests) were addressed to the original Energylightbulbs.co.uk, 9% (8 requests) were made to Apis.google.com and 4% (4 requests) were made to Trustlogo.com. The less responsive or slowest element that took the longest time to load (1.7 sec) belongs to the original domain Energylightbulbs.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 220.9 kB (20%)

Content Size

1.1 MB

After Optimization

894.1 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Energylightbulbs.co.uk main page is 1.1 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. 55% of websites need less resources to load. Images take 930.9 kB which makes up the majority of the site volume.

HTML Optimization

-73%

Potential reduce by 34.3 kB

  • Original 47.0 kB
  • After minification 45.3 kB
  • After compression 12.7 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 34.3 kB or 73% of the original size.

Image Optimization

-12%

Potential reduce by 114.0 kB

  • Original 930.9 kB
  • After minification 816.9 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, Energy Light Bulbs needs image optimization as it can save up to 114.0 kB or 12% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-37%

Potential reduce by 32.8 kB

  • Original 89.8 kB
  • After minification 83.5 kB
  • After compression 56.9 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 32.8 kB or 37% of the original size.

CSS Optimization

-84%

Potential reduce by 39.8 kB

  • Original 47.4 kB
  • After minification 40.8 kB
  • After compression 7.6 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. Energylightbulbs.co.uk needs all CSS files to be minified and compressed as it can save up to 39.8 kB or 84% of the original size.

Requests Breakdown

Number of requests can be reduced by 27 (32%)

Requests Now

85

After Optimization

58

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 85 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Energy Light Bulbs. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 18 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

energylightbulbs.co.uk

energylightbulbs.co.uk

260 ms

www.energylightbulbs.co.uk

www.energylightbulbs.co.uk

284 ms

style.css

style.css

188 ms

drop_down.css

drop_down.css

191 ms

jquery.min.js

jquery.min.js

74 ms

slides.min.jquery.js

slides.min.jquery.js

199 ms

menu.js

menu.js

202 ms

main.js

main.js

214 ms

validation.js

validation.js

558 ms

plusone.js

plusone.js

58 ms

cot.js

cot.js

24 ms

cot.js

cot.js

62 ms

logo.jpg

logo.jpg

282 ms

search_box.gif

search_box.gif

191 ms

Search.gif

Search.gif

190 ms

my_shopping.gif

my_shopping.gif

203 ms

checkout.gif

checkout.gif

221 ms

main_nav.gif

main_nav.gif

374 ms

toggle.png

toggle.png

374 ms

green_x.jpg

green_x.jpg

415 ms

BlockArrow.gif

BlockArrow.gif

432 ms

red_x.jpg

red_x.jpg

433 ms

blue_x.jpg

blue_x.jpg

470 ms

NewsletterSubscribe.gif

NewsletterSubscribe.gif

572 ms

f8b81e7f10d2d9171d0ce961a8979724BANNER-WITH-PRICE-CHANGE-GU105W.jpg

f8b81e7f10d2d9171d0ce961a8979724BANNER-WITH-PRICE-CHANGE-GU105W.jpg

675 ms

b927e89004dbf09c50804db5ad8aed14GU10-6W-WITH-CHANGED-PRICE.jpg

b927e89004dbf09c50804db5ad8aed14GU10-6W-WITH-CHANGED-PRICE.jpg

718 ms

cbff3e931bfe82a3352704060acc92a8Banner0310v4.jpg

cbff3e931bfe82a3352704060acc92a8Banner0310v4.jpg

940 ms

1da500c38a786c4a3162219e539e4d7fBanner0710v6.jpg

1da500c38a786c4a3162219e539e4d7fBanner0710v6.jpg

950 ms

f360d7317733b40bd654e4042f7b7f64Banner1210v4.jpg

f360d7317733b40bd654e4042f7b7f64Banner1210v4.jpg

1038 ms

f41ccc125a4cb5f6b50ee6dc70f2e83c0712v5.jpg

f41ccc125a4cb5f6b50ee6dc70f2e83c0712v5.jpg

1134 ms

thumb_ea68e9d50d298adf84805614f00c6cd5Leds1.jpg

thumb_ea68e9d50d298adf84805614f00c6cd5Leds1.jpg

888 ms

thumb_eee37d285db2efc9adcb3064440a4f845v2.jpg

thumb_eee37d285db2efc9adcb3064440a4f845v2.jpg

908 ms

thumb_2ca3732900b0d45da487fb7a094f94262v1.jpg

thumb_2ca3732900b0d45da487fb7a094f94262v1.jpg

1073 ms

thumb_1d90dde9a996b0171455a3c96e189b662.jpg

thumb_1d90dde9a996b0171455a3c96e189b662.jpg

1097 ms

thumb_aee80bbc9a4bf249be0250e46a9052472v1.jpg

thumb_aee80bbc9a4bf249be0250e46a9052472v1.jpg

1139 ms

thumb_771fcdd9695e8e61c4f319311260996f2v2.jpg

thumb_771fcdd9695e8e61c4f319311260996f2v2.jpg

1146 ms

thumb_20f6e596303ceaf89e6bc66b59fb04b12v2.jpg

thumb_20f6e596303ceaf89e6bc66b59fb04b12v2.jpg

1229 ms

thumb_76535d5b818def1c97b7c7067c1908c42.jpg

thumb_76535d5b818def1c97b7c7067c1908c42.jpg

1274 ms

thumb_076e225d62ea3a43a116b3d1b89d29693.jpg

thumb_076e225d62ea3a43a116b3d1b89d29693.jpg

1297 ms

thumb_abb3e7154ecb34714c520bd84f791c2b3.jpg

thumb_abb3e7154ecb34714c520bd84f791c2b3.jpg

1318 ms

thumb_0605ece3cd50f67198f52d67ff7030232.jpg

thumb_0605ece3cd50f67198f52d67ff7030232.jpg

1328 ms

thumb_8c73b7ae6dea64d7523a79431640eb9d3.jpg

thumb_8c73b7ae6dea64d7523a79431640eb9d3.jpg

1332 ms

thumb_38416dd576ae589f9629e2d490f356c31.jpg

thumb_38416dd576ae589f9629e2d490f356c31.jpg

1432 ms

thumb_0be7047487eb4cb0055104a15318e0731v1.jpg

thumb_0be7047487eb4cb0055104a15318e0731v1.jpg

1476 ms

thumb_125e00322f53479fc4e2d7970e2c746d1.jpg

thumb_125e00322f53479fc4e2d7970e2c746d1.jpg

1486 ms

thumb_56e21f5ab81ed58285ad74273ce75a9d1.jpg

thumb_56e21f5ab81ed58285ad74273ce75a9d1.jpg

1522 ms

thumb_3bcd8fd6a882b078b32796b1f38adc461.jpg

thumb_3bcd8fd6a882b078b32796b1f38adc461.jpg

1515 ms

supertag.php

supertag.php

302 ms

thumb_3523eddac4916014b885cd21d25635a31.jpg

thumb_3523eddac4916014b885cd21d25635a31.jpg

1340 ms

thumb_a7fb2176c6eaa83543897252a6a94e2d1.jpg

thumb_a7fb2176c6eaa83543897252a6a94e2d1.jpg

1451 ms

thumb_3600e823bd7c8377d98cfdf6d3b1e651white-back.png

thumb_3600e823bd7c8377d98cfdf6d3b1e651white-back.png

1471 ms

42daa771b7349d7f044b324c3ae1bc948WLedTwinWall.jpg

42daa771b7349d7f044b324c3ae1bc948WLedTwinWall.jpg

1553 ms

254f4c06aa4f282e00ceb60dac71df7f35WSpriral.jpg

254f4c06aa4f282e00ceb60dac71df7f35WSpriral.jpg

1566 ms

944fe29ab9ccf2c863d24af0fe852cafGLS800B22.jpg

944fe29ab9ccf2c863d24af0fe852cafGLS800B22.jpg

1545 ms

client.php

client.php

91 ms

supertagphp.php

supertagphp.php

185 ms

fef817beae8e22bb9702fdeb5e496047GU1050Wv1.jpg

fef817beae8e22bb9702fdeb5e496047GU1050Wv1.jpg

1475 ms

17284b6300c86ef0aa8a994c6f3a5a84Led5WCandle.jpg

17284b6300c86ef0aa8a994c6f3a5a84Led5WCandle.jpg

1595 ms

energy_calculator.jpg

energy_calculator.jpg

1601 ms

143415114409

143415114409

299 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

5 ms

ga.js

ga.js

26 ms

base_finder.jpg

base_finder.jpg

1677 ms

payment_methods.jpg

payment_methods.jpg

1659 ms

__utm.gif

__utm.gif

24 ms

cot_bgf0.gif

cot_bgf0.gif

21 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

9 ms

fastbutton

fastbutton

58 ms

close.jpg

close.jpg

1521 ms

cot_bgf0.gif

cot_bgf0.gif

9 ms

postmessageRelay

postmessageRelay

49 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

11 ms

cb=gapi.loaded_1

cb=gapi.loaded_1

11 ms

3193398744-postmessagerelay.js

3193398744-postmessagerelay.js

37 ms

rpc:shindig_random.js

rpc:shindig_random.js

66 ms

W5F8_SL0XFawnjxHGsZjJA.ttf

W5F8_SL0XFawnjxHGsZjJA.ttf

39 ms

tooltip_img.jpg

tooltip_img.jpg

1463 ms

cb=gapi.loaded_0

cb=gapi.loaded_0

4 ms

continue_shopping2.jpg

continue_shopping2.jpg

1480 ms

jquery.min.js

jquery.min.js

31 ms

newsletter_bg.gif

newsletter_bg.gif

1483 ms

scripts

scripts

187 ms

green_bg.gif

green_bg.gif

1322 ms

red_bar.jpg

red_bar.jpg

1311 ms

verisign_logo.jpg

verisign_logo.jpg

425 ms

f8b81e7f10d2d9171d0ce961a8979724BANNER-WITH-PRICE-CHANGE-GU105W.jpg

f8b81e7f10d2d9171d0ce961a8979724BANNER-WITH-PRICE-CHANGE-GU105W.jpg

1419 ms

socket.io-1.3.5.js

socket.io-1.3.5.js

30 ms

loading.gif

loading.gif

1255 ms

pagination.png

pagination.png

1266 ms

roundtrip.js

roundtrip.js

8 ms

Accessibility Review

energylightbulbs.co.uk accessibility score

86

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.

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 IDs are not unique

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

Links do not have a discernible name

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>).

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Best Practices

energylightbulbs.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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

energylightbulbs.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

High

robots.txt is not valid

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

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Energylightbulbs.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 Energylightbulbs.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

energylightbulbs.co.uk

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