Tools & Wizards About Us
buch-der-synergie.de screenshot

Report Summary

  • 79

    Performance

    Renders faster than
    85% of other websites

  • 51

    Accessibility

    Visual factors better than
    that of 21% of websites

  • 50

    Best Practices

    More advanced features
    available than in
    19% of websites

  • 67

    SEO

    Google-friendlier than
    26% of websites

buch-der-synergie.de

Achmed Khammas - Das Buch der Synergie

Page Load Speed

4.1 sec in total

First Response

359 ms

Resources Loaded

2.9 sec

Page Rendered

842 ms

buch-der-synergie.de screenshot

About Website

Visit buch-der-synergie.de now to see the best up-to-date Buch Der Synergie content for Germany and also check out these interesting facts you probably never knew about buch-der-synergie.de

In der vorliegenden Arbeit werden alle Systeme der Erneuerbaren Energie aus Praxis und Forschung vorgestellt, ebenso ihre Geschichte und ihre Entwicklungen, der Grad ihrer tatsächlichen Anwendungen un...

Visit buch-der-synergie.de

Key Findings

We analyzed Buch-der-synergie.de page load time and found that the first response time was 359 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

buch-der-synergie.de performance score

79

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.0 s

49/100

10%

LCP (Largest Contentful Paint)

Value3.2 s

73/100

25%

SI (Speed Index)

Value3.5 s

88/100

10%

TBT (Total Blocking Time)

Value240 ms

85/100

30%

CLS (Cumulative Layout Shift)

Value0.003

100/100

15%

TTI (Time to Interactive)

Value5.7 s

68/100

10%

Network Requests Diagram

buch-der-synergie.de

359 ms

buch-der-synergie.de

444 ms

layout_3col_vlines.css

261 ms

page_transitions.css

262 ms

jquery.min.js

19 ms

Our browser made a total of 44 requests to load all elements on the main page. We found that 82% of them (36 requests) were addressed to the original Buch-der-synergie.de, 5% (2 requests) were made to Google.com and 5% (2 requests) were made to Google-analytics.com. The less responsive or slowest element that took the longest time to load (1.4 sec) belongs to the original domain Buch-der-synergie.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 222.9 kB (11%)

Content Size

2.0 MB

After Optimization

1.7 MB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Buch-der-synergie.de main page is 2.0 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 1.8 MB which makes up the majority of the site volume.

HTML Optimization

-75%

Potential reduce by 42.8 kB

  • Original 57.2 kB
  • After minification 49.1 kB
  • After compression 14.4 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 8.1 kB, which is 14% 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 42.8 kB or 75% of the original size.

Image Optimization

-9%

Potential reduce by 165.4 kB

  • Original 1.8 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. Buch Der Synergie images are well optimized though.

JavaScript Optimization

-8%

Potential reduce by 7.2 kB

  • Original 89.2 kB
  • After minification 89.2 kB
  • After compression 82.0 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

-53%

Potential reduce by 7.5 kB

  • Original 14.2 kB
  • After minification 11.1 kB
  • After compression 6.7 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. Buch-der-synergie.de needs all CSS files to be minified and compressed as it can save up to 7.5 kB or 53% of the original size.

Requests Breakdown

Number of requests can be reduced by 14 (36%)

Requests Now

39

After Optimization

25

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 39 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Buch Der Synergie. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 7 to 1 for JavaScripts and from 9 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

buch-der-synergie.de

buch-der-synergie.de

359 ms

buch-der-synergie.de

buch-der-synergie.de

444 ms

layout_3col_vlines.css

layout_3col_vlines.css

261 ms

page_transitions.css

page_transitions.css

262 ms

jquery.min.js

jquery.min.js

19 ms

dmenu.js

dmenu.js

357 ms

jquery.smoothstate.js

jquery.smoothstate.js

264 ms

page.transitions.js

page.transitions.js

279 ms

brand

brand

10 ms

brandjs.js

brandjs.js

16 ms

base.css

base.css

202 ms

basemod.css

basemod.css

253 ms

basemod_vlines.css

basemod_vlines.css

260 ms

nav_vlist.css

nav_vlist.css

267 ms

content.css

content.css

299 ms

iehacks_3col_vlines.css

iehacks_3col_vlines.css

354 ms

iehacks.css

iehacks.css

110 ms

bg_line_gfx.jpg

bg_line_gfx.jpg

886 ms

synergie_logo.jpg

synergie_logo.jpg

471 ms

pfeil_links.jpg

pfeil_links.jpg

306 ms

pfeil_rechts.jpg

pfeil_rechts.jpg

299 ms

nav_icon_001_new.png

nav_icon_001_new.png

306 ms

nav_icon_002_eng.png

nav_icon_002_eng.png

305 ms

AchmedKhammas.jpg

AchmedKhammas.jpg

724 ms

icon_mail.png

icon_mail.png

561 ms

nav_icon_003_home.png

nav_icon_003_home.png

543 ms

nav_icon_004_vid.png

nav_icon_004_vid.png

547 ms

nav_icon_005_site.png

nav_icon_005_site.png

707 ms

nav_icon_006_eye.png

nav_icon_006_eye.png

802 ms

nav_icon_007_part_A.png

nav_icon_007_part_A.png

805 ms

nav_icon_008_part_B.png

nav_icon_008_part_B.png

825 ms

nav_icon_009_part_C.png

nav_icon_009_part_C.png

966 ms

nav_icon_010_part_D.png

nav_icon_010_part_D.png

985 ms

nav_icon_011_part_E.png

nav_icon_011_part_E.png

1061 ms

nav_icon_012_archive.png

nav_icon_012_archive.png

1067 ms

nav_icon_013_db.png

nav_icon_013_db.png

1087 ms

nav_icon_014_imprint.png

nav_icon_014_imprint.png

1130 ms

FunctionTwoRegular.ttf

FunctionTwoRegular.ttf

1384 ms

branding.png

branding.png

38 ms

analytics.js

analytics.js

30 ms

FunctionRegular.ttf

FunctionRegular.ttf

1371 ms

collect

collect

13 ms

js

js

59 ms

blank.gif

blank.gif

98 ms

Accessibility Review

buch-der-synergie.de accessibility score

51

Accessibility Issues

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Form elements do not have associated labels

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>).

Best Practices

buch-der-synergie.de best practices score

50

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

Browser errors were logged to the console

High

Issues were logged in the Issues panel in Chrome Devtools

SEO Factors

buch-der-synergie.de SEO score

67

Search Engine Optimization Advices

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

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Buch-der-synergie.de can be misinterpreted by Google and other search engines. Our service has detected that German 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 Buch-der-synergie.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

buch-der-synergie.de

Open Graph description is not detected on the main page of Buch Der Synergie. 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: