Access ressource-deutschland.de. VDI Zentrum Ressourceneffizienz

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value27.4 s

0/100

25%

SI (Speed Index)

Value15.3 s

1/100

10%

TBT (Total Blocking Time)

Value1,180 ms

21/100

30%

CLS (Cumulative Layout Shift)

Value0.073

95/100

15%

TTI (Time to Interactive)

Value46.0 s

0/100

10%

ressource-deutschland.de

308 ms

ressource-deutschland.de

392 ms

www.ressource-deutschland.de

944 ms

d5c975f3dbbc344b226a85f3756a7d86.css

280 ms

bootstrap.min.css

392 ms

Our browser made a total of 49 requests to load all elements on the main page. We found that 96% of them (47 requests) were addressed to the original Ressource-deutschland.de, 2% (1 request) were made to Ajax.googleapis.com and 2% (1 request) were made to Consent.cookiebot.eu. The less responsive or slowest element that took the longest time to load (1.2 sec) belongs to the original domain Ressource-deutschland.de.

Content Size

14.2 MB

After Optimization

6.9 MB

In fact, the total size of Ressource-deutschland.de main page is 14.2 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. 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. Images take 13.5 MB which makes up the majority of the site volume.

HTML Optimization

-87%

Potential reduce by 531.8 kB

Original 613.1 kB
After minification 586.0 kB
After compression 81.3 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 531.8 kB or 87% of the original size.

Image Optimization

-50%

Potential reduce by 6.7 MB

Original 13.5 MB
After minification 6.8 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. Obviously, Ressource Deutschland needs image optimization as it can save up to 6.7 MB or 50% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-14%

Potential reduce by 9.2 kB

Original 65.6 kB
After minification 65.6 kB
After compression 56.3 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 9.2 kB or 14% of the original size.

Requests Now

After Optimization

The browser has sent 44 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Ressource Deutschland. 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 10 to 1 for CSS and as a result speed up the page load time.

Accessibility Issues

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.

High

[aria-*] attributes do not match their roles

High

[aria-hidden="true"] elements contain focusable descendents

High

Elements with an ARIA [role] that require children to contain a specific [role] are missing some or all of those required children.

High

[role]s are not contained by their required parent element

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

Buttons do not have an accessible name

High

Links do not have a discernible name

These are opportunities to improve the legibility of your content.

High

Background and foreground colors do not have a sufficient contrast ratio.

These are opportunities to improve keyboard navigation in your application.

High

Heading elements are not in a sequentially-descending order

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

High

List items (<li>) are not contained within <ul> or <ol> parent elements.

Areas of Improvement

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

High

Displays images with incorrect aspect ratio

Low

Detected JavaScript libraries

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

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

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 Ressource-deutschland.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 Ressource-deutschland.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

ressource-deutschland.de

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

Report Summary

Performance

Accessibility

Best Practices

SEO

VDI Zentrum Ressourceneffizienz - ein Kompetenzzentrum des BMUV

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

ressource-deutschland.de

ressource-deutschland.de

www.ressource-deutschland.de

d5c975f3dbbc344b226a85f3756a7d86.css

bootstrap.min.css

Page Optimization Overview & Recommendations

Content Size

After Optimization

HTML Optimization

Image Optimization

JavaScript Optimization

Requests Breakdown

Requests Now

After Optimization

Network Requests Diagram

ressource-deutschland.de

ressource-deutschland.de

www.ressource-deutschland.de

d5c975f3dbbc344b226a85f3756a7d86.css

bootstrap.min.css

All.min.css

Forms.css

Fonts.css

Custom.css

efficiency_atlas_styles.css

ressourcecheck.css

print-result.css

app.css

jquery.min.js

uc.js

twoclick.js

efficiency_atlas_map.js

markerclusterer.js

vendor.js

app.js

app.dev.js

Lms3access.js

bootstrap.min.js

Custom.js

vdi-logo.svg

logo-bmuv-de.svg

Header1_c_VDI_ZRE.png

panthermedia_B198807822_3000x2000_bearbeitet_WEB_C2.jpg

PantherMedia_B504392452_350px.jpg

Recycling_Alunorf_C1.png

Thumbnail_Batterierecycling.png

Gipsrecycling_Thumbnail.jpg

Thumbnail_Temperbox-Verfahren.jpg

Thumbnail_Kaeltekuehlung_YouTube.jpg

20210420_BBM_21.jpg

mqdefault2.jpg

mqdefault.jpg

csm_I4.0-300x200_026f7b182d.png

csm_KaltWarmUmformungstechnik-300x200_0b978c23d5.png

Kunststoffe_Laufband_300x200.jpg

Remanufacturing_300x200.jpg

panthermedia__c_Peryn_365px.png

estem_Abschlussbericht_CoverGrafik.png

AdobeStock__c_REDPIXEL_171831241_730px.jpg