Report Summary

  • 50

    Performance

    Renders faster than
    70% of other websites

  • 97

    Accessibility

    Visual factors better than
    that of 93% of websites

  • 83

    Best Practices

    More advanced features
    available than in
    57% of websites

  • 93

    SEO

    Google-friendlier than
    84% of websites

berlin-institut.org

Berlin-Institut für Bevölkerung und Entwicklung | Demografische Veränderungen gestalten

Page Load Speed

4.1 sec in total

First Response

429 ms

Resources Loaded

3.5 sec

Page Rendered

201 ms

berlin-institut.org screenshot

About Website

Welcome to berlin-institut.org homepage info - get ready to check Berlin Institut best content for Germany right away, or after learning these important things about berlin-institut.org

Wir sind ein unabhängiger Thinktank, der sich mit Fragen regionaler und globaler demografischer Veränderungen beschäftigt

Visit berlin-institut.org

Key Findings

We analyzed Berlin-institut.org page load time and found that the first response time was 429 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 55% of websites can load faster.

Performance Metrics

berlin-institut.org performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value9.9 s

0/100

25%

SI (Speed Index)

Value6.4 s

40/100

10%

TBT (Total Blocking Time)

Value310 ms

78/100

30%

CLS (Cumulative Layout Shift)

Value0.004

100/100

15%

TTI (Time to Interactive)

Value7.8 s

45/100

10%

Network Requests Diagram

berlin-institut.org

429 ms

www.berlin-institut.org

907 ms

stylesheet_0e77c5c9f1.css

189 ms

style.css

190 ms

jquery-ui-1.8.24.custom.css

287 ms

Our browser made a total of 124 requests to load all elements on the main page. We found that 89% of them (110 requests) were addressed to the original Berlin-institut.org, 3% (4 requests) were made to Platform.twitter.com and 2% (3 requests) were made to Pbs.twimg.com. The less responsive or slowest element that took the longest time to load (907 ms) belongs to the original domain Berlin-institut.org.

Page Optimization Overview & Recommendations

Page size can be reduced by 220.6 kB (39%)

Content Size

567.8 kB

After Optimization

347.2 kB

In fact, the total size of Berlin-institut.org main page is 567.8 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. 45% of websites need less resources to load. Images take 260.4 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 74.7 kB

  • Original 88.9 kB
  • After minification 86.7 kB
  • After compression 14.2 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 74.7 kB or 84% of the original size.

Image Optimization

-4%

Potential reduce by 10.6 kB

  • Original 260.4 kB
  • After minification 249.8 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. Berlin Institut images are well optimized though.

JavaScript Optimization

-54%

Potential reduce by 84.0 kB

  • Original 156.8 kB
  • After minification 127.8 kB
  • After compression 72.8 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 84.0 kB or 54% of the original size.

CSS Optimization

-83%

Potential reduce by 51.4 kB

  • Original 61.7 kB
  • After minification 49.9 kB
  • After compression 10.3 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. Berlin-institut.org needs all CSS files to be minified and compressed as it can save up to 51.4 kB or 83% of the original size.

Requests Breakdown

Number of requests can be reduced by 38 (31%)

Requests Now

122

After Optimization

84

The browser has sent 122 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Berlin Institut. 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 8 to 1 for CSS and as a result speed up the page load time.

Accessibility Review

berlin-institut.org accessibility score

97

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.

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Best Practices

berlin-institut.org 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

Displays images with incorrect aspect ratio

General

Impact

Issue

Low

Detected JavaScript libraries

High

Missing source maps for large first-party JavaScript

SEO Factors

berlin-institut.org 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

    EN

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Berlin-institut.org can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and it does not match the claimed English language. Our system also found out that Berlin-institut.org 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

Open Graph description is not detected on the main page of Berlin Institut. 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: