Access umweltbundesamt.de. Umweltbundesamt

name

value

score

weighting

FCP (First Contentful Paint)

Value4.5 s

15/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value6.7 s

36/100

10%

TBT (Total Blocking Time)

Value560 ms

53/100

30%

CLS (Cumulative Layout Shift)

Value0.491

17/100

15%

TTI (Time to Interactive)

Value8.7 s

36/100

10%

umweltbundesamt.de

489 ms

www.umweltbundesamt.de

837 ms

css_mxbvRAV0_YoXwGCXbsQzCkegc1pXHICzfd8PPQD9YE4.css

208 ms

css_4npt969FP7Y5ym4myT1kMhyGRIyRNIy81lWoId2iicI.css

311 ms

css_IArvZrrmndQTr6lNTpWLHilNE_IoMzNdwyCM44MZxFk.css

310 ms

Our browser made a total of 115 requests to load all elements on the main page. We found that all of those requests were addressed to Umweltbundesamt.de and no external sources were called. The less responsive or slowest element that took the longest time to load (1.3 sec) belongs to the original domain Umweltbundesamt.de.

Content Size

9.2 MB

After Optimization

7.9 MB

In fact, the total size of Umweltbundesamt.de main page is 9.2 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. 70% of websites need less resources to load. Images take 8.5 MB which makes up the majority of the site volume.

HTML Optimization

-82%

Potential reduce by 390.1 kB

Original 478.2 kB
After minification 469.6 kB
After compression 88.1 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 390.1 kB or 82% of the original size.

Image Optimization

-11%

Potential reduce by 968.5 kB

Original 8.5 MB
After minification 7.5 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, Umweltbundesamt needs image optimization as it can save up to 968.5 kB or 11% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

JavaScript Optimization

-13%

Potential reduce by 29.1 kB

Original 218.1 kB
After minification 218.1 kB
After compression 189.0 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. It is highly recommended that all JavaScript files should be compressed and minified as it can save up to 29.1 kB or 13% of the original size.

CSS Optimization

-0%

Potential reduce by 144 B

Original 71.4 kB
After minification 71.4 kB
After compression 71.2 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. Umweltbundesamt.de has all CSS files already compressed.

Requests Now

108

After Optimization

The browser has sent 108 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Umweltbundesamt. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 13 to 1 for JavaScripts and from 8 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

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 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

High

Includes front-end JavaScript libraries with known security vulnerabilities

Low

Ensure CSP is effective against XSS attacks

Low

Detected JavaScript libraries

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

High

Tap targets are not sized appropriately

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 Umweltbundesamt.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 Umweltbundesamt.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

umweltbundesamt.de

Open Graph data is detected on the main page of Umweltbundesamt. 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

Umweltbundesamt | Für Mensch und Umwelt

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

umweltbundesamt.de

www.umweltbundesamt.de

css_mxbvRAV0_YoXwGCXbsQzCkegc1pXHICzfd8PPQD9YE4.css

css_4npt969FP7Y5ym4myT1kMhyGRIyRNIy81lWoId2iicI.css

css_IArvZrrmndQTr6lNTpWLHilNE_IoMzNdwyCM44MZxFk.css

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

umweltbundesamt.de

www.umweltbundesamt.de

css_mxbvRAV0_YoXwGCXbsQzCkegc1pXHICzfd8PPQD9YE4.css

css_4npt969FP7Y5ym4myT1kMhyGRIyRNIy81lWoId2iicI.css

css_IArvZrrmndQTr6lNTpWLHilNE_IoMzNdwyCM44MZxFk.css

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