Access londonbuildingsupplies.co.uk. London based Building Insulation Materials

name

value

score

weighting

FCP (First Contentful Paint)

Value3.7 s

29/100

10%

LCP (Largest Contentful Paint)

Value22.1 s

0/100

25%

SI (Speed Index)

Value22.9 s

0/100

10%

TBT (Total Blocking Time)

Value6,360 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.321

36/100

15%

TTI (Time to Interactive)

Value30.4 s

0/100

10%

londonbuildingsupplies.co.uk

90 ms

londonbuildingsupplies.co.uk

540 ms

css

117 ms

theme-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

119 ms

nextgen-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

156 ms

Our browser made a total of 122 requests to load all elements on the main page. We found that 6% of them (7 requests) were addressed to the original Londonbuildingsupplies.co.uk, 48% (58 requests) were made to Cdn11.bigcommerce.com and 10% (12 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.5 sec) relates to the external source Cdn11.bigcommerce.com.

Content Size

61.3 MB

After Optimization

52.1 MB

In fact, the total size of Londonbuildingsupplies.co.uk main page is 61.3 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. Only a small number of websites need less resources to load. Images take 60.0 MB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 723.0 kB

Original 819.9 kB
After minification 716.7 kB
After compression 96.9 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 103.2 kB, which is 13% 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 723.0 kB or 88% of the original size.

Image Optimization

-14%

Potential reduce by 8.4 MB

Original 60.0 MB
After minification 51.6 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, London Building Supplies needs image optimization as it can save up to 8.4 MB or 14% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-15%

Potential reduce by 64.0 kB

Original 421.1 kB
After minification 421.1 kB
After compression 357.1 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 64.0 kB or 15% of the original size.

CSS Optimization

-0%

Potential reduce by 0 B

Original 29.6 kB
After minification 29.6 kB
After compression 29.6 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. Londonbuildingsupplies.co.uk has all CSS files already compressed.

Requests Now

102

After Optimization

The browser has sent 102 CSS, Javascripts, AJAX and image requests in order to completely render the main page of London Building Supplies. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 32 to 1 for JavaScripts and from 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

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.

High

ARIA IDs are not unique

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.

High

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

Lists do not contain only <li> elements and script supporting elements (<script> and <template>).

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Serves images with low resolution

Low

Detected JavaScript libraries

High

Browser errors were logged to the console

High

Missing source maps for large first-party JavaScript

Search Engine Optimization Advices

Format your HTML in a way that enables crawlers to better understand your app’s content.

High

Image elements do not have [alt] attributes

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/).

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 Londonbuildingsupplies.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 Londonbuildingsupplies.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

londonbuildingsupplies.co.uk

Open Graph description is not detected on the main page of London Building Supplies. 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:

Report Summary

Performance

Accessibility

Best Practices

SEO

London based Building Insulation Materials

Page Load Speed

First Response

Resources Loaded

Page Rendered

About Website

Key Findings

Performance Metrics

Measured Metrics

FCP (First Contentful Paint)

LCP (Largest Contentful Paint)

SI (Speed Index)

TBT (Total Blocking Time)

CLS (Cumulative Layout Shift)

TTI (Time to Interactive)

Network Requests Diagram

londonbuildingsupplies.co.uk

londonbuildingsupplies.co.uk

css

theme-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

nextgen-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

CSS Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

londonbuildingsupplies.co.uk

londonbuildingsupplies.co.uk

css

theme-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

nextgen-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

cards-simple-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

cards-quicksearch-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

theme-editor-responsive-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

custom-4fe640e0-8f97-013d-9a77-46d71cd79e52.css

loader.js

index.js

all.css

platform.js

jquery.min.js

platform.js

theme-bundle.main.js

jquery.min.js

csrf-protection-header-5eeddd5de78d98d146ef4fd71b2aedce4161903e.js

platform.js

visitor_stencil.js

init.js

1h6oruhi8.js

super_pay_bc.js

jquery-3.6.4.min.js

js

css2

platform.js

css2

fbevents.js

gtm.js

ns.html

basketwhite.png

lbs-sticky-logo.png

image-2.png

image-10.png

image_2022_12_23t06_03_39_248z_1671778346__17017.original.png

image-21.png

image-22.png

vector-8.png

timber-sheet.png

cavity-insulation.png

plasterboard.png

acoustic-materials.png