Access zwave.de. Z-Wave Europe - The leading european distributor for Smart Home products.

name

value

score

weighting

FCP (First Contentful Paint)

Value9.6 s

0/100

10%

LCP (Largest Contentful Paint)

Value25.1 s

0/100

25%

SI (Speed Index)

Value19.1 s

0/100

10%

TBT (Total Blocking Time)

Value2,060 ms

7/100

30%

CLS (Cumulative Layout Shift)

Value0.099

90/100

15%

TTI (Time to Interactive)

Value23.9 s

1/100

10%

zwave.de

431 ms

zwave.de

452 ms

zwave.eu

540 ms

253484483.js

19 ms

913054800.js

10 ms

Our browser made a total of 138 requests to load all elements on the main page. We found that 1% of them (2 requests) were addressed to the original Zwave.de, 97% (134 requests) were made to Zwave.eu and 1% (1 request) were made to Google.com. The less responsive or slowest element that took the longest time to load (636 ms) relates to the external source Zwave.eu.

Content Size

5.9 MB

After Optimization

5.5 MB

In fact, the total size of Zwave.de main page is 5.9 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 4.1 MB which makes up the majority of the site volume.

HTML Optimization

-81%

Potential reduce by 183.0 kB

Original 226.1 kB
After minification 221.7 kB
After compression 43.1 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. HTML code on this page is well minified. It is highly recommended that content of this web page should be compressed using GZIP, as it can save up to 183.0 kB or 81% of the original size.

Image Optimization

-3%

Potential reduce by 137.7 kB

Original 4.1 MB
After minification 4.0 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. Z Wave images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 6.5 kB

Original 1.4 MB
After minification 1.4 MB
After compression 1.4 MB

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

-7%

Potential reduce by 14.0 kB

Original 199.3 kB
After minification 199.3 kB
After compression 185.3 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. Zwave.de has all CSS files already compressed.

Requests Now

133

After Optimization

The browser has sent 133 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Z Wave. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 77 to 1 for JavaScripts and from 32 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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

Image elements do not have [alt] attributes

High

Links do not have a discernible name

These items highlight common accessibility best practices.

High

[user-scalable="no"] is used in the <meta name="viewport"> element or the [maximum-scale] attribute is less than 5.

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

To appear in search results, crawlers need access to your app.

High

Links are not crawlable

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 Zwave.de 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 Zwave.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

zwave.de

Open Graph description is not detected on the main page of Z Wave. 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

Z-Wave Europe - The leading european distributor for Smart Home products.

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

zwave.de

zwave.de

zwave.eu

253484483.js

913054800.js

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

zwave.de

zwave.de

zwave.eu

253484483.js

913054800.js

linecons.css

font-awesome.min.css

rs6.css

style.css

style.min.css

grid.css

responsive.css

element-pack-site.css

style.min.css

style.css

style.css

styles.css

styles.css

style.min.css

style.css

profile.css

elementor-icons.min.css

animations.min.css

frontend.min.css

post-191.css

global.css

post-1666.css

style.css

chosen.min.css

mailin-front.css

fontawesome.min.css

solid.min.css

react.min.js

react-dom.min.js

react-jsx-runtime.min.js

dom-ready.min.js

hooks.min.js

i18n.min.js

a11y.min.js

url.min.js

api-fetch.min.js

blob.min.js

autop.min.js