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velux.pl screenshot

Report Summary

  • 6

    Performance

    Renders faster than
    21% of other websites

  • 77

    Accessibility

    Visual factors better than
    that of 44% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 82

    SEO

    Google-friendlier than
    44% of websites

velux.pl

Okna dachowe, rolety i markizy - VELUX

Page Load Speed

2 sec in total

First Response

148 ms

Resources Loaded

1.6 sec

Page Rendered

223 ms

velux.pl screenshot

About Website

Welcome to velux.pl homepage info - get ready to check VELUX best content for Poland right away, or after learning these important things about velux.pl

Największy na świecie producent okien dachowych, wyłazów, rolet na okna dachowe, markiz i świetlików dachowych. ➔ Sprawdź rozwiązania VELUX!

Visit velux.pl

Key Findings

We analyzed Velux.pl page load time and found that the first response time was 148 ms and then it took 1.8 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

velux.pl performance score

6

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.9 s

11/100

10%

LCP (Largest Contentful Paint)

Value10.7 s

0/100

25%

SI (Speed Index)

Value9.8 s

10/100

10%

TBT (Total Blocking Time)

Value5,690 ms

0/100

30%

CLS (Cumulative Layout Shift)

Value0.403

25/100

15%

TTI (Time to Interactive)

Value28.5 s

0/100

10%

Network Requests Diagram

velux.pl

148 ms

www.velux.pl

564 ms

tailwind.min.css

55 ms

marketing.min.css

148 ms

jquery-3.3.0.min.js

21 ms

Our browser made a total of 70 requests to load all elements on the main page. We found that 4% of them (3 requests) were addressed to the original Velux.pl, 84% (59 requests) were made to Cdn-marketing.velux.com and 6% (4 requests) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (567 ms) relates to the external source Googletagmanager.com.

Page Optimization Overview & Recommendations

Page size can be reduced by 216.8 kB (10%)

Content Size

2.2 MB

After Optimization

2.0 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Velux.pl main page is 2.2 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. 80% of websites need less resources to load and that’s why Accessify’s recommendations for optimization and resource minification can be helpful for this project. Images take 1.6 MB which makes up the majority of the site volume.

HTML Optimization

-91%

Potential reduce by 195.6 kB

  • Original 215.8 kB
  • After minification 108.1 kB
  • After compression 20.2 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 107.7 kB, which is 50% 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 195.6 kB or 91% of the original size.

Image Optimization

-1%

Potential reduce by 21.1 kB

  • Original 1.6 MB
  • After minification 1.6 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. VELUX images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 13 B

  • Original 77.2 kB
  • After minification 77.2 kB
  • After compression 77.2 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

-0%

Potential reduce by 89 B

  • Original 280.0 kB
  • After minification 280.0 kB
  • After compression 279.9 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. Velux.pl has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 7 (11%)

Requests Now

61

After Optimization

54

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 61 CSS, Javascripts, AJAX and image requests in order to completely render the main page of 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 8 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

velux.pl

velux.pl

148 ms

www.velux.pl

www.velux.pl

564 ms

tailwind.min.css

tailwind.min.css

55 ms

marketing.min.css

marketing.min.css

148 ms

jquery-3.3.0.min.js

jquery-3.3.0.min.js

21 ms

jquery-migrate-3.3.2.js

jquery-migrate-3.3.2.js

23 ms

common.min.js

common.min.js

217 ms

components.min.js

components.min.js

222 ms

686777ed6d.js

686777ed6d.js

306 ms

gtm.js

gtm.js

437 ms

gtm.js

gtm.js

567 ms

header-bottom-bg.png

header-bottom-bg.png

70 ms

velux-okna-dachowe.png

velux-okna-dachowe.png

78 ms

bg_global_menu.png

bg_global_menu.png

78 ms

replacement-campaign-1280x600-pl.jpg

replacement-campaign-1280x600-pl.jpg

140 ms

velux-sprite.png

velux-sprite.png

174 ms

eshop-spring-campaign-pl.jpg

eshop-spring-campaign-pl.jpg

216 ms

icon-chevron-small-right.png

icon-chevron-small-right.png

174 ms

facebook.png

facebook.png

217 ms

youtube.png

youtube.png

216 ms

instagram.png

instagram.png

215 ms

veluxgothic-light.woff

veluxgothic-light.woff

145 ms

veluxgothic-black.woff

veluxgothic-black.woff

110 ms

veluxgothic-bold.woff

veluxgothic-bold.woff

152 ms

veluxgothic-regular.woff

veluxgothic-regular.woff

152 ms

veluxgothic-light.woff

veluxgothic-light.woff

154 ms

veluxgothic-bold.woff

veluxgothic-bold.woff

154 ms

rooms.jpg

rooms.jpg

85 ms

projects.jpg

projects.jpg

89 ms

get-started.jpg

get-started.jpg

89 ms

inspiration-home.jpg

inspiration-home.jpg

91 ms

products2.jpg

products2.jpg

89 ms

contact.jpg

contact.jpg

91 ms

combi-solutions-banner-home.jpg

combi-solutions-banner-home.jpg

90 ms

dodatkowe-wyposazenie-glowna-strona2-460-320.jpg

dodatkowe-wyposazenie-glowna-strona2-460-320.jpg

91 ms

bezplatne-konsultacje-velux-610-110.jpg

bezplatne-konsultacje-velux-610-110.jpg

93 ms

rolety-i-markizy-255-255.jpg

rolety-i-markizy-255-255.jpg

91 ms

okna-do-dachow-plaskich-255-255.jpg

okna-do-dachow-plaskich-255-255.jpg

91 ms

255-255roleta-zewnetrzna-218-218.jpg

255-255roleta-zewnetrzna-218-218.jpg

93 ms

smart-home-255-255.jpg

smart-home-255-255.jpg

93 ms

swietlik-dachowe-255-255.jpg

swietlik-dachowe-255-255.jpg

94 ms

promotion-menu.jpg

promotion-menu.jpg

93 ms

inspiracje-rooms-menu.jpg

inspiracje-rooms-menu.jpg

93 ms

inspiration-new-build-menu.jpg

inspiration-new-build-menu.jpg

95 ms

inspiration-renovation-menu.jpg

inspiration-renovation-menu.jpg

94 ms

inspiration-replacement-menu.jpg

inspiration-replacement-menu.jpg

93 ms

inspiration-articles-menu.jpg

inspiration-articles-menu.jpg

96 ms

inspiration-case-hub-menu.jpg

inspiration-case-hub-menu.jpg

96 ms

inspiration-transformation-gallery.jpg

inspiration-transformation-gallery.jpg

95 ms

inspiration-3d-walk-menu.jpg

inspiration-3d-walk-menu.jpg

96 ms

WindowTypes

WindowTypes

182 ms

user-stories-menu.jpg

user-stories-menu.jpg

65 ms

inspiration-hhb-menu.jpg

inspiration-hhb-menu.jpg

61 ms

inspiration-configurator-menu.jpg

inspiration-configurator-menu.jpg

61 ms

inspiration-before-you-buy-menu.jpg

inspiration-before-you-buy-menu.jpg

60 ms

przewodnik-uzytkownika-255-255.jpg

przewodnik-uzytkownika-255-255.jpg

66 ms

wyposazenie-dodatkowe-255-255.jpg

wyposazenie-dodatkowe-255-255.jpg

64 ms

wymiana-z-dofinansowaniem-255-255.jpg

wymiana-z-dofinansowaniem-255-255.jpg

64 ms

wirtunalny-showroom-255-255.jpg

wirtunalny-showroom-255-255.jpg

66 ms

gwarancja-255-255.jpg

gwarancja-255-255.jpg

64 ms

serwis-partnerski-255-255.jpg

serwis-partnerski-255-255.jpg

63 ms

oznaczenia-ce-255-255.jpg

oznaczenia-ce-255-255.jpg

64 ms

kolnierze-oznaczenie-b.jpg

kolnierze-oznaczenie-b.jpg

63 ms

wsparcie-active-255-255.jpg

wsparcie-active-255-255.jpg

63 ms

velux-touch-255-255.jpg

velux-touch-255-255.jpg

64 ms

rolety-kup-teraz-255-255.jpg

rolety-kup-teraz-255-255.jpg

63 ms

okna-dachowe-kup-teraz-255-255.jpg

okna-dachowe-kup-teraz-255-255.jpg

63 ms

landing

landing

153 ms

destination

destination

143 ms

gtm.js

gtm.js

132 ms

Accessibility Review

velux.pl accessibility score

77

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

Image elements do not have [alt] attributes

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

velux.pl 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

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

velux.pl SEO score

82

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

Content Best Practices

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

Impact

Issue

High

Image elements do not have [alt] attributes

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

    PL

  • Language Claimed

    PL

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Velux.pl can be misinterpreted by Google and other search engines. Our service has detected that Polish is used on the page, and it matches the claimed language. Our system also found out that Velux.pl 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

velux.pl

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