Tools & Wizards About Us

Report Summary

  • 9

    Performance

    Renders faster than
    23% of other websites

  • 78

    Accessibility

    Visual factors better than
    that of 45% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 91

    SEO

    Google-friendlier than
    70% of websites

roofwindows.co.uk

VELUX & Solstro Roof Windows & Blinds UK | The Roof Window Store

Page Load Speed

2.9 sec in total

First Response

151 ms

Resources Loaded

2 sec

Page Rendered

700 ms

About Website

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

We offer a selection of VELUX and Solstro roof windows, skylights, flat roof windows, sun tunnels, as well as blinds and accessories. Find inspiration, explore our products and buy now! Experience our...

Visit roofwindows.co.uk

Key Findings

We analyzed Roofwindows.co.uk page load time and found that the first response time was 151 ms and then it took 2.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 50% of websites can load faster.

Performance Metrics

roofwindows.co.uk performance score

9

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.2 s

8/100

10%

LCP (Largest Contentful Paint)

Value11.8 s

0/100

25%

SI (Speed Index)

Value12.4 s

3/100

10%

TBT (Total Blocking Time)

Value8,960 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.229

54/100

15%

TTI (Time to Interactive)

Value32.0 s

0/100

10%

Network Requests Diagram

roofwindows.co.uk

151 ms

theroofwindowstore.co.uk

405 ms

all

277 ms

7611.js

33 ms

system

347 ms

Our browser made a total of 36 requests to load all elements on the main page. We found that 3% of them (1 request) were addressed to the original Roofwindows.co.uk, 39% (14 requests) were made to Theroofwindowstore.co.uk and 36% (13 requests) were made to Reviews.admin.eu.customergauge.com. The less responsive or slowest element that took the longest time to load (614 ms) relates to the external source Theroofwindowstore.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 1.0 MB (67%)

Content Size

1.5 MB

After Optimization

507.4 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Roofwindows.co.uk main page is 1.5 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. CSS take 668.2 kB which makes up the majority of the site volume.

HTML Optimization

-88%

Potential reduce by 151.5 kB

  • Original 172.5 kB
  • After minification 128.2 kB
  • After compression 21.0 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 44.3 kB, which is 26% 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 151.5 kB or 88% of the original size.

Image Optimization

-0%

Potential reduce by 41 B

  • Original 176.0 kB
  • After minification 175.9 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. Roof Windows images are well optimized though.

JavaScript Optimization

-68%

Potential reduce by 351.8 kB

  • Original 521.1 kB
  • After minification 521.1 kB
  • After compression 169.3 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 351.8 kB or 68% of the original size.

CSS Optimization

-79%

Potential reduce by 527.0 kB

  • Original 668.2 kB
  • After minification 667.9 kB
  • After compression 141.2 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. Roofwindows.co.uk needs all CSS files to be minified and compressed as it can save up to 527.0 kB or 79% of the original size.

Requests Breakdown

Number of requests can be reduced by 18 (67%)

Requests Now

27

After Optimization

9

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 27 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Roof Windows. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 16 to 1 for JavaScripts and from 4 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

Accessibility Review

roofwindows.co.uk accessibility score

78

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

button, link, and menuitem elements do not have accessible names.

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.

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

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

High

Links do not have a discernible name

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

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>).

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

roofwindows.co.uk 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

High

Missing source maps for large first-party JavaScript

SEO Factors

roofwindows.co.uk SEO score

91

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

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

    N/A

  • Encoding

    UTF-8

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

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