Report Summary

  • 21

    Performance

    Renders faster than
    39% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 92

    SEO

    Google-friendlier than
    74% of websites

modularskylights.velux.co.uk

Rooflights for commercial buildings | VELUX Commercial

Page Load Speed

2.2 sec in total

First Response

146 ms

Resources Loaded

1.6 sec

Page Rendered

408 ms

modularskylights.velux.co.uk screenshot

About Website

Click here to check amazing Modularskylights VELUX content for United Kingdom. Otherwise, check out these important facts you probably never knew about modularskylights.velux.co.uk

Rooflights and glass roofs for daylight and natural ventilation in commercial buildings. Read more about our rooflight solutions here.

Visit modularskylights.velux.co.uk

Key Findings

We analyzed Modularskylights.velux.co.uk page load time and found that the first response time was 146 ms and then it took 2 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 40% of websites can load faster.

Performance Metrics

modularskylights.velux.co.uk performance score

21

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.8 s

55/100

10%

LCP (Largest Contentful Paint)

Value8.4 s

2/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value860 ms

33/100

30%

CLS (Cumulative Layout Shift)

Value1.091

1/100

15%

TTI (Time to Interactive)

Value15.9 s

6/100

10%

Network Requests Diagram

modularskylights.velux.co.uk

146 ms

commercial.velux.co.uk

680 ms

components.min.css

102 ms

swiper.min.js

136 ms

swiper.min.js

89 ms

Our browser made a total of 68 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Modularskylights.velux.co.uk, 81% (55 requests) were made to Cdn-commercial.velux.com and 7% (5 requests) were made to Weshare.23video.com. The less responsive or slowest element that took the longest time to load (680 ms) relates to the external source Commercial.velux.co.uk.

Page Optimization Overview & Recommendations

Page size can be reduced by 193.3 kB (16%)

Content Size

1.2 MB

After Optimization

1.1 MB

In fact, the total size of Modularskylights.velux.co.uk main page is 1.2 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. 60% of websites need less resources to load. Images take 975.1 kB which makes up the majority of the site volume.

HTML Optimization

-90%

Potential reduce by 115.8 kB

  • Original 128.0 kB
  • After minification 69.7 kB
  • After compression 12.2 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 58.2 kB, which is 46% 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 115.8 kB or 90% of the original size.

Image Optimization

-8%

Potential reduce by 76.3 kB

  • Original 975.1 kB
  • After minification 898.8 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. Modularskylights VELUX images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 585 B

  • Original 112.6 kB
  • After minification 112.6 kB
  • After compression 112.0 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

-2%

Potential reduce by 572 B

  • Original 27.9 kB
  • After minification 27.9 kB
  • After compression 27.3 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. Modularskylights.velux.co.uk has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 16 (25%)

Requests Now

65

After Optimization

49

The browser has sent 65 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Modularskylights VELUX. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 12 to 1 for JavaScripts and from 6 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

modularskylights.velux.co.uk accessibility score

91

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.

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

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

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

modularskylights.velux.co.uk best practices score

83

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

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

modularskylights.velux.co.uk SEO score

92

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 Modularskylights.velux.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 Modularskylights.velux.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 Modularskylights VELUX. This is the best way to make the web page social media friendly. Here is how it looks like on Facebook: