Tools & Wizards About Us
jemcentres.com screenshot

Report Summary

  • 54

    Performance

    Renders faster than
    71% of other websites

  • 80

    Accessibility

    Visual factors better than
    that of 49% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 90

    SEO

    Google-friendlier than
    68% of websites

jemcentres.com

Builders Merchants & DIY Supplies in Liverpool, Merseyside

Page Load Speed

3.4 sec in total

First Response

252 ms

Resources Loaded

2.5 sec

Page Rendered

652 ms

jemcentres.com screenshot

About Website

Welcome to jemcentres.com homepage info - get ready to check Jemcentres best content right away, or after learning these important things about jemcentres.com

Jem Centres are a builders merchants who offer an extensive range of professional building products & DIY supplies in and around Liverpool, Merseyside.

Visit jemcentres.com

Key Findings

We analyzed Jemcentres.com page load time and found that the first response time was 252 ms and then it took 3.1 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

jemcentres.com performance score

54

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.1 s

45/100

10%

LCP (Largest Contentful Paint)

Value4.8 s

30/100

25%

SI (Speed Index)

Value4.7 s

68/100

10%

TBT (Total Blocking Time)

Value480 ms

60/100

30%

CLS (Cumulative Layout Shift)

Value0.032

100/100

15%

TTI (Time to Interactive)

Value10.7 s

23/100

10%

Network Requests Diagram

jemcentres.com

252 ms

jemcentres.com

1080 ms

style.min.css

153 ms

styles.css

233 ms

flatsome.min.css

318 ms

Our browser made a total of 60 requests to load all elements on the main page. We found that 78% of them (47 requests) were addressed to the original Jemcentres.com, 12% (7 requests) were made to Fonts.gstatic.com and 3% (2 requests) were made to Maxcdn.bootstrapcdn.com. The less responsive or slowest element that took the longest time to load (1.1 sec) belongs to the original domain Jemcentres.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 113.4 kB (6%)

Content Size

1.8 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Jemcentres.com 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. 55% of websites need less resources to load. Images take 1.5 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 70.2 kB

  • Original 86.3 kB
  • After minification 78.3 kB
  • After compression 16.1 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 70.2 kB or 81% of the original size.

Image Optimization

-1%

Potential reduce by 15.6 kB

  • Original 1.5 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. Jemcentres images are well optimized though.

JavaScript Optimization

-6%

Potential reduce by 14.1 kB

  • Original 217.2 kB
  • After minification 217.2 kB
  • After compression 203.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-21%

Potential reduce by 13.6 kB

  • Original 63.2 kB
  • After minification 63.0 kB
  • After compression 49.6 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. Jemcentres.com needs all CSS files to be minified and compressed as it can save up to 13.6 kB or 21% of the original size.

Requests Breakdown

Number of requests can be reduced by 11 (22%)

Requests Now

49

After Optimization

38

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 49 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jemcentres. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

jemcentres.com

jemcentres.com

252 ms

jemcentres.com

jemcentres.com

1080 ms

style.min.css

style.min.css

153 ms

styles.css

styles.css

233 ms

flatsome.min.css

flatsome.min.css

318 ms

style.css

style.css

240 ms

css

css

42 ms

jquery.min.js

jquery.min.js

329 ms

jquery-migrate.min.js

jquery-migrate.min.js

243 ms

font-awesome.min.css

font-awesome.min.css

30 ms

js

js

48 ms

jquery.form.min.js

jquery.form.min.js

171 ms

scripts.js

scripts.js

239 ms

flatsome.min.js

flatsome.min.js

404 ms

stoneycroft-jem-centre.png

stoneycroft-jem-centre.png

126 ms

logo.png

logo.png

125 ms

west-derby-jem-centre.png

west-derby-jem-centre.png

125 ms

Builders-merchants-JEM.jpg

Builders-merchants-JEM.jpg

508 ms

tools-building-supplies-liverpool.jpg

tools-building-supplies-liverpool.jpg

373 ms

jem-centres-diy-supplies-slide.jpg

jem-centres-diy-supplies-slide.jpg

428 ms

jemcentres.com

jemcentres.com

340 ms

building-supplies-page.jpg

building-supplies-page.jpg

354 ms

sheet-materials-page.jpg

sheet-materials-page.jpg

354 ms

timber-supplies-page.jpg

timber-supplies-page.jpg

492 ms

plumbing-supplies-page.jpg

plumbing-supplies-page.jpg

438 ms

trade-kitchens-bathrooms-page.jpg

trade-kitchens-bathrooms-page.jpg

514 ms

dakea-windows-page.jpg

dakea-windows-page.jpg

529 ms

seasonal-building-products.jpg

seasonal-building-products.jpg

509 ms

snow1.png

snow1.png

517 ms

snow2.png

snow2.png

569 ms

DIY-sale.jpg

DIY-sale.jpg

672 ms

IMG_4515-300x225.jpg

IMG_4515-300x225.jpg

594 ms

IMG_4083-225x300.jpg

IMG_4083-225x300.jpg

598 ms

IMG_4054-225x300.jpg

IMG_4054-225x300.jpg

598 ms

Why-choose-JEM-Centres-Liverpool.png

Why-choose-JEM-Centres-Liverpool.png

687 ms

british-gypsum.png

british-gypsum.png

645 ms

dakea.png

dakea.png

677 ms

ever-build.png

ever-build.png

678 ms

john-guest.png

john-guest.png

678 ms

marshall-town.png

marshall-town.png

724 ms

mcalpine.png

mcalpine.png

752 ms

mcpherson.png

mcpherson.png

759 ms

polypipe.png

polypipe.png

758 ms

siniat.png

siniat.png

759 ms

spear-jackson.png

spear-jackson.png

767 ms

stanley.png

stanley.png

800 ms

triton.png

triton.png

831 ms

JEM-credit-cards-accepted.png

JEM-credit-cards-accepted.png

840 ms

KFOmCnqEu92Fr1Mu4mxP.ttf

KFOmCnqEu92Fr1Mu4mxP.ttf

56 ms

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

KFOlCnqEu92Fr1MmSU5fBBc9.ttf

171 ms

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

KFOlCnqEu92Fr1MmWUlfBBc9.ttf

208 ms

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

KFOlCnqEu92Fr1MmYUtfBBc9.ttf

230 ms

icomoon.woff

icomoon.woff

772 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1xZosUZiYA.ttf

231 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs1_FvsUZiYA.ttf

232 ms

TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYA.ttf

TK3_WkUHHAIjg75cFRf3bXL8LICs169vsUZiYA.ttf

231 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

34 ms

analytics.js

analytics.js

199 ms

diy-supplies-liverpool-footer2-opt.jpg

diy-supplies-liverpool-footer2-opt.jpg

738 ms

collect

collect

13 ms

Accessibility Review

jemcentres.com accessibility score

80

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

Best practices

These items highlight common accessibility best practices.

Impact

Issue

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

Best Practices

jemcentres.com 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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

SEO Factors

jemcentres.com SEO score

90

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

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 Jemcentres.com 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 Jemcentres.com 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

jemcentres.com

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