Tools & Wizards About Us
zentralsolar.de screenshot

Report Summary

  • 70

    Performance

    Renders faster than
    81% of other websites

  • 82

    Accessibility

    Visual factors better than
    that of 52% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 93

    SEO

    Google-friendlier than
    83% of websites

zentralsolar.de

Photovoltaikanlagen für die nachhaltige Energienutzung | ZSD Solar

Page Load Speed

3.7 sec in total

First Response

357 ms

Resources Loaded

2.8 sec

Page Rendered

559 ms

zentralsolar.de screenshot

About Website

Click here to check amazing Zentral Solar content. Otherwise, check out these important facts you probably never knew about zentralsolar.de

Machen Sie sich unabhängig von Ihrem Energieversorger und investieren Sie mit uns in erneuerbare Energien. Informieren Sie sich über Photovoltaikanlagen!

Visit zentralsolar.de

Key Findings

We analyzed Zentralsolar.de page load time and found that the first response time was 357 ms and then it took 3.4 sec to load all DOM resources and completely render a web page. This is a poor result, as 60% of websites can load faster.

Performance Metrics

zentralsolar.de performance score

70

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value2.0 s

85/100

10%

LCP (Largest Contentful Paint)

Value3.3 s

68/100

25%

SI (Speed Index)

Value6.1 s

44/100

10%

TBT (Total Blocking Time)

Value450 ms

63/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value6.3 s

60/100

10%

Network Requests Diagram

zentralsolar.de

357 ms

www.zsd.solar

552 ms

www.zsd.solar

641 ms

styles.css

181 ms

main.min.js

338 ms

Our browser made a total of 16 requests to load all elements on the main page. We found that 6% of them (1 request) were addressed to the original Zentralsolar.de, 88% (14 requests) were made to Zsd.solar and 6% (1 request) were made to Meinebewertungen.wn-onlineservice.de. The less responsive or slowest element that took the longest time to load (1.1 sec) relates to the external source Meinebewertungen.wn-onlineservice.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 221.7 kB (20%)

Content Size

1.1 MB

After Optimization

907.5 kB

  • HTML
  • Images
  • JavaScript

In fact, the total size of Zentralsolar.de main page is 1.1 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. 20% of websites need less resources to load. Images take 649.8 kB which makes up the majority of the site volume.

HTML Optimization

-55%

Potential reduce by 200.9 kB

  • Original 365.5 kB
  • After minification 364.8 kB
  • After compression 164.7 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 200.9 kB or 55% of the original size.

Image Optimization

-3%

Potential reduce by 20.6 kB

  • Original 649.8 kB
  • After minification 629.2 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. Zentral Solar images are well optimized though.

JavaScript Optimization

-0%

Potential reduce by 215 B

  • Original 113.9 kB
  • After minification 113.9 kB
  • After compression 113.7 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.

Requests Breakdown

Number of requests can be reduced by 4 (33%)

Requests Now

12

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 12 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Zentral Solar. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 5 to 1 for JavaScripts and as a result speed up the page load time.

Network Requests Diagram

zentralsolar.de

zentralsolar.de

357 ms

www.zsd.solar

www.zsd.solar

552 ms

www.zsd.solar

www.zsd.solar

641 ms

styles.css

styles.css

181 ms

main.min.js

main.min.js

338 ms

_require.js

_require.js

337 ms

csite_modules.js

csite_modules.js

520 ms

usecurez.js

usecurez.js

412 ms

cms_defaults.css

cms_defaults.css

337 ms

widget.js

widget.js

1086 ms

branding-w_large_1Maxhda_FO.png

branding-w_large_1Maxhda_FO.png

123 ms

video-img.jpg

video-img.jpg

573 ms

branding_501_large_etV2ev47aK.png

branding_501_large_etV2ev47aK.png

135 ms

chargepoint-partner-logo_large_R9sXWvjReY.png

chargepoint-partner-logo_large_R9sXWvjReY.png

228 ms

icomoon.woff

icomoon.woff

89 ms

print.css

print.css

89 ms

Accessibility Review

zentralsolar.de accessibility score

82

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

[aria-*] attributes do not have valid values

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.

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Some elements have a [tabindex] value greater than 0

Best Practices

zentralsolar.de 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

zentralsolar.de SEO score

93

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

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 Zentralsolar.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 Zentralsolar.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

zentralsolar.de

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