Tools & Wizards About Us
itzala.de screenshot

Report Summary

  • 16

    Performance

    Renders faster than
    30% of other websites

  • 75

    Accessibility

    Visual factors better than
    that of 41% of websites

  • 67

    Best Practices

    More advanced features
    available than in
    24% of websites

  • 83

    SEO

    Google-friendlier than
    46% of websites

itzala.de

VELUX Rollo – Tolle Rabatt auf VELUX Rollos fur Dachfenster | Dachfenster-Rollo-Shop.de

Page Load Speed

3.8 sec in total

First Response

171 ms

Resources Loaded

3.5 sec

Page Rendered

217 ms

itzala.de screenshot

About Website

Click here to check amazing Itzala content. Otherwise, check out these important facts you probably never knew about itzala.de

Kaufen Sie original VELUX Rollos mit ein tolle Rabatt online auf Dachfenster-Rollo-Shop.de – wir bieten eine schnelle Lieferung und exzellenten Service! Kaufen Sie jetzt!

Visit itzala.de

Key Findings

We analyzed Itzala.de page load time and found that the first response time was 171 ms and then it took 3.7 sec to load all DOM resources and completely render a web page. This is a poor result, as 65% of websites can load faster.

Performance Metrics

itzala.de performance score

16

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value4.1 s

21/100

10%

LCP (Largest Contentful Paint)

Value11.4 s

0/100

25%

SI (Speed Index)

Value8.1 s

21/100

10%

TBT (Total Blocking Time)

Value4,170 ms

1/100

30%

CLS (Cumulative Layout Shift)

Value0.157

74/100

15%

TTI (Time to Interactive)

Value24.2 s

0/100

10%

Network Requests Diagram

itzala.de

171 ms

www.dachfenster-rollo-shop.de

2356 ms

tp.widget.bootstrap.min.js

17 ms

screen.min.css

268 ms

screen-hover.min.css

278 ms

Our browser made a total of 76 requests to load all elements on the main page. We found that 1% of them (1 request) were addressed to the original Itzala.de, 82% (62 requests) were made to Dachfenster-rollo-shop.de and 8% (6 requests) were made to Fonts.gstatic.com. The less responsive or slowest element that took the longest time to load (2.4 sec) relates to the external source Dachfenster-rollo-shop.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 287.9 kB (19%)

Content Size

1.5 MB

After Optimization

1.2 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Itzala.de 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. Images take 1.1 MB which makes up the majority of the site volume.

HTML Optimization

-67%

Potential reduce by 165.7 kB

  • Original 246.5 kB
  • After minification 179.4 kB
  • After compression 80.8 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 67.1 kB, which is 27% 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 165.7 kB or 67% of the original size.

Image Optimization

-10%

Potential reduce by 111.6 kB

  • Original 1.1 MB
  • After minification 1.0 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. Itzala images are well optimized though.

JavaScript Optimization

-14%

Potential reduce by 10.1 kB

  • Original 73.9 kB
  • After minification 73.9 kB
  • After compression 63.8 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 10.1 kB or 14% of the original size.

CSS Optimization

-1%

Potential reduce by 500 B

  • Original 41.9 kB
  • After minification 41.8 kB
  • After compression 41.4 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. Itzala.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 18 (27%)

Requests Now

67

After Optimization

49

  • Images
  • JavaScript
  • CSS

The browser has sent 67 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Itzala. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 11 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

itzala.de

itzala.de

171 ms

www.dachfenster-rollo-shop.de

www.dachfenster-rollo-shop.de

2356 ms

tp.widget.bootstrap.min.js

tp.widget.bootstrap.min.js

17 ms

screen.min.css

screen.min.css

268 ms

screen-hover.min.css

screen-hover.min.css

278 ms

grid-mobile.min.css

grid-mobile.min.css

288 ms

screen-mobile.min.css

screen-mobile.min.css

283 ms

configurator-mobile.min.css

configurator-mobile.min.css

287 ms

font-awesome.min.css

font-awesome.min.css

289 ms

jquery-1.12.4.min.js

jquery-1.12.4.min.js

345 ms

script.js

script.js

344 ms

nav-menu-mobile.js

nav-menu-mobile.js

358 ms

shadowbox.js

shadowbox.js

357 ms

shadowbox.css

shadowbox.css

357 ms

landingPage.js

landingPage.js

357 ms

css

css

42 ms

gtm.js

gtm.js

147 ms

gtm.js

gtm.js

308 ms

gtm.js

gtm.js

212 ms

sidebar.js

sidebar.js

306 ms

logo_dark.svg

logo_dark.svg

126 ms

trustpilot.png

trustpilot.png

100 ms

paypal.png

paypal.png

126 ms

visa.png

visa.png

126 ms

mastercard.png

mastercard.png

124 ms

maestro.png

maestro.png

124 ms

klarna_smallicon.png

klarna_smallicon.png

141 ms

velux_k21_blackout_290x381.jpg

velux_k21_blackout_290x381.jpg

171 ms

product%20logo%20velux%20small.jpg

product%20logo%20velux%20small.jpg

168 ms

velux%20awning%20large.jpg

velux%20awning%20large.jpg

169 ms

velux%20replacement%20blackout%20290x381.jpg

velux%20replacement%20blackout%20290x381.jpg

170 ms

dky-menu.jpg

dky-menu.jpg

168 ms

rfy-menu.jpg

rfy-menu.jpg

241 ms

velux%20energy%20large.jpg

velux%20energy%20large.jpg

242 ms

velux%20duo%20large.jpg

velux%20duo%20large.jpg

242 ms

velux%20insectnet%20large.jpg

velux%20insectnet%20large.jpg

242 ms

velux%20softshutter%20medium.jpg

velux%20softshutter%20medium.jpg

242 ms

pleated-large.jpg

pleated-large.jpg

242 ms

roller-large.jpg

roller-large.jpg

384 ms

velux%20venetian%20large.jpg

velux%20venetian%20large.jpg

381 ms

itzala%20blackout%20large.jpg

itzala%20blackout%20large.jpg

380 ms

product%20logo%20itzala%20small.png

product%20logo%20itzala%20small.png

381 ms

no-drill-menu.jpg

no-drill-menu.jpg

380 ms

itzala%20awning%20large.jpg

itzala%20awning%20large.jpg

381 ms

itzala%20roller%20large.jpg

itzala%20roller%20large.jpg

386 ms

itzala%20venetian%20large.jpg

itzala%20venetian%20large.jpg

386 ms

de-velux-standard-banner.jpg

de-velux-standard-banner.jpg

386 ms

de-velux-dkl-banner.jpg

de-velux-dkl-banner.jpg

387 ms

de-itzala-standard-banner.jpg

de-itzala-standard-banner.jpg

445 ms

itzala-nodrill-1.png

itzala-nodrill-1.png

611 ms

product%20logo%20velux.jpg

product%20logo%20velux.jpg

446 ms

product%20logo%20itzala.png

product%20logo%20itzala.png

446 ms

itzala%20blackout%20medium.jpg

itzala%20blackout%20medium.jpg

446 ms

product%20logo%20itzala.png

product%20logo%20itzala.png

527 ms

no-drill-medium.jpg

no-drill-medium.jpg

526 ms

itzala%20awning%20medium.jpg

itzala%20awning%20medium.jpg

498 ms

qFda35WCmI96Ajtm83upeyoaX6QPnlo6_PPbMJqMl8Kuo_Aw.woff

qFda35WCmI96Ajtm83upeyoaX6QPnlo6_PPbMJqMl8Kuo_Aw.woff

145 ms

qFda35WCmI96Ajtm83upeyoaX6QPnlo6IvTbMJqMl8Kuo_Aw.woff

qFda35WCmI96Ajtm83upeyoaX6QPnlo6IvTbMJqMl8Kuo_Aw.woff

351 ms

qFda35WCmI96Ajtm83upeyoaX6QPnlo6G_TbMJqMl8Kuo_Aw.woff

qFda35WCmI96Ajtm83upeyoaX6QPnlo6G_TbMJqMl8Kuo_Aw.woff

352 ms

qFda35WCmI96Ajtm83upeyoaX6QPnlo6fPTbMJqMl8Kuo_Aw.woff

qFda35WCmI96Ajtm83upeyoaX6QPnlo6fPTbMJqMl8Kuo_Aw.woff

357 ms

qFdU35WCmI96Ajtm81GgSdXCNs-VMF0vNLADeqqGncWMp9gyYsI.woff

qFdU35WCmI96Ajtm81GgSdXCNs-VMF0vNLADeqqGncWMp9gyYsI.woff

354 ms

qFdU35WCmI96Ajtm81GgSdXCNs-VMF0vNLDkfaqGncWMp9gyYsI.woff

qFdU35WCmI96Ajtm81GgSdXCNs-VMF0vNLDkfaqGncWMp9gyYsI.woff

352 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

479 ms

itzala%20roller%20medium.jpg

itzala%20roller%20medium.jpg

409 ms

itzala%20venetian%20medium.jpg

itzala%20venetian%20medium.jpg

410 ms

heatprotection476x130.jpg

heatprotection476x130.jpg

410 ms

klarna_logo.png

klarna_logo.png

460 ms

guide.jpg

guide.jpg

458 ms

minibasket-bg.svg

minibasket-bg.svg

441 ms

usp-tick.svg

usp-tick.svg

427 ms

icon-dark-cart-dark.svg

icon-dark-cart-dark.svg

478 ms

icon-usp-dealer-neg.svg

icon-usp-dealer-neg.svg

479 ms

icon-usp-telephone-neg.svg

icon-usp-telephone-neg.svg

481 ms

icon-usp-delivery-neg.svg

icon-usp-delivery-neg.svg

484 ms

js

js

111 ms

print.min.css

print.min.css

73 ms

Accessibility Review

itzala.de accessibility score

75

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

Best Practices

itzala.de best practices score

67

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

Displays images with incorrect aspect ratio

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

itzala.de SEO score

83

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

    DE

  • Language Claimed

    DE

  • Encoding

    UTF-8

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

itzala.de

Open Graph description is not detected on the main page of Itzala. 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: