Tools & Wizards About Us
bhkw-infothek.de screenshot

Report Summary

  • 24

    Performance

    Renders faster than
    43% of other websites

  • 69

    Accessibility

    Visual factors better than
    that of 34% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    55% of websites

  • 64

    SEO

    Google-friendlier than
    24% of websites

bhkw-infothek.de

BHKW-Infothek | Unabhängiges Informationsportal zu stromerzeugenden Heizungen und Kraft-Wärme-Kopplung des BHKW-Forum e.V.

Page Load Speed

3.1 sec in total

First Response

295 ms

Resources Loaded

2.6 sec

Page Rendered

173 ms

bhkw-infothek.de screenshot

About Website

Welcome to bhkw-infothek.de homepage info - get ready to check BHKW Infothek best content for Germany right away, or after learning these important things about bhkw-infothek.de

Das unabhängige Informationsportal mit aktuellen Nachrichten, Hintergrundberichten und Modellübersichten für Blockheizkraftwerke, Brennstoffzellen und stromerzeugende Heizungen

Visit bhkw-infothek.de

Key Findings

We analyzed Bhkw-infothek.de page load time and found that the first response time was 295 ms and then it took 2.8 sec to load all DOM resources and completely render a web page. This is a poor result, as 55% of websites can load faster.

Performance Metrics

bhkw-infothek.de performance score

24

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.7 s

5/100

10%

LCP (Largest Contentful Paint)

Value5.8 s

16/100

25%

SI (Speed Index)

Value9.9 s

9/100

10%

TBT (Total Blocking Time)

Value1,520 ms

13/100

30%

CLS (Cumulative Layout Shift)

Value0.084

93/100

15%

TTI (Time to Interactive)

Value16.6 s

5/100

10%

Network Requests Diagram

bhkw-infothek.de

295 ms

www.bhkw-infothek.de

709 ms

style.css

126 ms

style.min.css

263 ms

styles.css

321 ms

Our browser made a total of 39 requests to load all elements on the main page. We found that 82% of them (32 requests) were addressed to the original Bhkw-infothek.de, 13% (5 requests) were made to Youtube-nocookie.com and 3% (1 request) were made to Googletagmanager.com. The less responsive or slowest element that took the longest time to load (709 ms) belongs to the original domain Bhkw-infothek.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 495.0 kB (56%)

Content Size

878.9 kB

After Optimization

383.9 kB

  • HTML
  • Images
  • JavaScript
  • CSS

In fact, the total size of Bhkw-infothek.de main page is 878.9 kB. 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. Javascripts take 450.4 kB which makes up the majority of the site volume.

HTML Optimization

-78%

Potential reduce by 36.6 kB

  • Original 47.0 kB
  • After minification 46.1 kB
  • After compression 10.4 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. 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 36.6 kB or 78% of the original size.

Image Optimization

-79%

Potential reduce by 234.9 kB

  • Original 297.7 kB
  • After minification 62.8 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. Obviously, BHKW Infothek needs image optimization as it can save up to 234.9 kB or 79% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-49%

Potential reduce by 221.2 kB

  • Original 450.4 kB
  • After minification 450.4 kB
  • After compression 229.2 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 221.2 kB or 49% of the original size.

CSS Optimization

-3%

Potential reduce by 2.3 kB

  • Original 83.8 kB
  • After minification 83.8 kB
  • After compression 81.5 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. Bhkw-infothek.de has all CSS files already compressed.

Requests Breakdown

Number of requests can be reduced by 19 (51%)

Requests Now

37

After Optimization

18

  • AJAX
  • Images
  • JavaScript
  • CSS

The browser has sent 37 CSS, Javascripts, AJAX and image requests in order to completely render the main page of BHKW Infothek. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 14 to 1 for JavaScripts and from 7 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

bhkw-infothek.de

bhkw-infothek.de

295 ms

www.bhkw-infothek.de

www.bhkw-infothek.de

709 ms

style.css

style.css

126 ms

style.min.css

style.min.css

263 ms

styles.css

styles.css

321 ms

jquery.fancybox.min.css

jquery.fancybox.min.css

319 ms

jquery.min.js

jquery.min.js

439 ms

jquery-migrate.min.js

jquery-migrate.min.js

337 ms

jquery.fancybox.min.js

jquery.fancybox.min.js

337 ms

underscore.min.js

underscore.min.js

383 ms

infinite-scroll.pkgd.min.js

infinite-scroll.pkgd.min.js

437 ms

front.js

front.js

465 ms

plugin.css

plugin.css

470 ms

datatables.css

datatables.css

468 ms

js

js

67 ms

comment-reply.min.js

comment-reply.min.js

537 ms

index.js

index.js

553 ms

index.js

index.js

553 ms

88RYLM97X4E

88RYLM97X4E

151 ms

big_bg1.png

big_bg1.png

486 ms

infothek.png

infothek.png

488 ms

bhkw_einfamilienhaus-200x136.jpg

bhkw_einfamilienhaus-200x136.jpg

135 ms

mwb_bhkw1.jpg

mwb_bhkw1.jpg

485 ms

youtube.png

youtube.png

483 ms

twitter.png

twitter.png

483 ms

rss.png

rss.png

485 ms

facebook.png

facebook.png

485 ms

diskussionsforum1.png

diskussionsforum1.png

485 ms

googleplus.png

googleplus.png

485 ms

asue.png

asue.png

486 ms

bkwk_logo2.png

bkwk_logo2.png

520 ms

energy-award.png

energy-award.png

522 ms

vfw_logo.png

vfw_logo.png

489 ms

bde.png

bde.png

520 ms

www-player.css

www-player.css

8 ms

www-embed-player.js

www-embed-player.js

40 ms

base.js

base.js

81 ms

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

YjCNJ0mFj9HiCkQt39lQVpZzkP0G8dlYH-ABayRLdFs.js

88 ms

embed.js

embed.js

44 ms

Accessibility Review

bhkw-infothek.de accessibility score

69

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

<frame> or <iframe> elements do not have a title

High

Image elements do not have [alt] attributes

High

Form elements do not have associated labels

High

Links do not have a discernible name

Best Practices

bhkw-infothek.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

User Experience

Impact

Issue

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

bhkw-infothek.de SEO score

64

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

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 Bhkw-infothek.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 Bhkw-infothek.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

bhkw-infothek.de

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