Tools & Wizards About Us
lisum.berlin-brandenburg.de screenshot

Report Summary

  • 50

    Performance

    Renders faster than
    68% of other websites

  • 98

    Accessibility

    Visual factors better than
    that of 94% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    35% of websites

  • 100

    SEO

    Google-friendlier than
    94% of websites

lisum.berlin-brandenburg.de

Landesinstitut für Schule und Medien Berlin-Brandenburg

Page Load Speed

4.2 sec in total

First Response

229 ms

Resources Loaded

3.6 sec

Page Rendered

298 ms

lisum.berlin-brandenburg.de screenshot

About Website

Welcome to lisum.berlin-brandenburg.de homepage info - get ready to check Lisum Berlin Brandenburg best content for Germany right away, or after learning these important things about lisum.berlin-brandenburg.de

Das LISUM – Ihr Ansprechpartner in Sachen Unterrichts-, Schul- und Personalentwicklung sowie für Medienbildung in der Bildungsregion Berlin-Brandenburg.

Visit lisum.berlin-brandenburg.de

Key Findings

We analyzed Lisum.berlin-brandenburg.de page load time and found that the first response time was 229 ms and then it took 3.9 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

lisum.berlin-brandenburg.de performance score

50

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value3.6 s

33/100

10%

LCP (Largest Contentful Paint)

Value9.3 s

1/100

25%

SI (Speed Index)

Value7.4 s

28/100

10%

TBT (Total Blocking Time)

Value270 ms

82/100

30%

CLS (Cumulative Layout Shift)

Value0.05

99/100

15%

TTI (Time to Interactive)

Value8.5 s

37/100

10%

Network Requests Diagram

lisum.berlin-brandenburg.de

229 ms

lisum

632 ms

13d4ae3b5bc55d19884f92cfb185d1e4.css

357 ms

suggest.css

357 ms

fonts.css

358 ms

Our browser made a total of 48 requests to load all elements on the main page. We found that all of those requests were addressed to Lisum.berlin-brandenburg.de and no external sources were called. The less responsive or slowest element that took the longest time to load (751 ms) belongs to the original domain Lisum.berlin-brandenburg.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 587.4 kB (81%)

Content Size

724.2 kB

After Optimization

136.9 kB

  • HTML
  • Images

In fact, the total size of Lisum.berlin-brandenburg.de main page is 724.2 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. 35% of websites need less resources to load. HTML takes 686.6 kB which makes up the majority of the site volume.

HTML Optimization

-84%

Potential reduce by 578.3 kB

  • Original 686.6 kB
  • After minification 675.3 kB
  • After compression 108.3 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 578.3 kB or 84% of the original size.

Image Optimization

-24%

Potential reduce by 9.1 kB

  • Original 37.6 kB
  • After minification 28.5 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, Lisum Berlin Brandenburg needs image optimization as it can save up to 9.1 kB or 24% of the original volume. The most popular and efficient tools for JPEG and PNG image optimization are Jpegoptim and PNG Crush.

Requests Breakdown

Number of requests can be reduced by 33 (80%)

Requests Now

41

After Optimization

8

  • Images
  • JavaScript
  • CSS

The browser has sent 41 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Lisum Berlin Brandenburg. We recommend that multiple CSS and JavaScript files should be merged into one by each type, as it can help reduce assets requests from 22 to 1 for JavaScripts and from 13 to 1 for CSS and as a result speed up the page load time.

Network Requests Diagram

lisum.berlin-brandenburg.de

lisum.berlin-brandenburg.de

229 ms

lisum

lisum

632 ms

13d4ae3b5bc55d19884f92cfb185d1e4.css

13d4ae3b5bc55d19884f92cfb185d1e4.css

357 ms

suggest.css

suggest.css

357 ms

fonts.css

fonts.css

358 ms

jquery.smartmenus.bootstrap.css

jquery.smartmenus.bootstrap.css

358 ms

jquery-ui.custom.css

jquery-ui.custom.css

357 ms

lisum_results.css

lisum_results.css

421 ms

styles.css

styles.css

419 ms

style.css

style.css

418 ms

styles.css

styles.css

424 ms

megamenu.css

megamenu.css

428 ms

news.css

news.css

431 ms

bsexample.css

bsexample.css

523 ms

mail.js

mail.js

188 ms

cookieOptin.css

cookieOptin.css

189 ms

cookieOptin.js

cookieOptin.js

191 ms

jquery-3.6.1.min.js

jquery-3.6.1.min.js

305 ms

jquery.min.js

jquery.min.js

317 ms

jquery.autocomplete.min.js

jquery.autocomplete.min.js

283 ms

suggest_controller.js

suggest_controller.js

283 ms

jquery-ui.min.js

jquery-ui.min.js

298 ms

jquery.URI.min.js

jquery.URI.min.js

296 ms

search_controller.js

search_controller.js

388 ms

popper.min.js

popper.min.js

389 ms

bootstrap.min.js

bootstrap.min.js

405 ms

jquery.smartmenus.min.js

jquery.smartmenus.min.js

406 ms

jquery.smartmenus.bootstrap.min.js

jquery.smartmenus.bootstrap.min.js

410 ms

mmenu.js

mmenu.js

416 ms

jquery.matchHeight.min.js

jquery.matchHeight.min.js

494 ms

scrolltotop.min.js

scrolltotop.min.js

492 ms

inter-element-anchors.min.js

inter-element-anchors.min.js

510 ms

prevent-link.min.js

prevent-link.min.js

514 ms

main.js

main.js

518 ms

cs_seo.ga.js

cs_seo.ga.js

523 ms

jquery.cookie.js

jquery.cookie.js

597 ms

cfd16b174d7f7b046e20adbc2e0a1094.js

cfd16b174d7f7b046e20adbc2e0a1094.js

618 ms

linien_lisum.png

linien_lisum.png

488 ms

laenderwappen.png

laenderwappen.png

489 ms

logo.png

logo.png

490 ms

logo_lisum.png

logo_lisum.png

491 ms

csm_LIBB_dd1e939704.png

csm_LIBB_dd1e939704.png

537 ms

csm_Lapbook_Experimente_acb41ea2a5.png

csm_Lapbook_Experimente_acb41ea2a5.png

538 ms

pt-sans-v9-latin-regular.woff

pt-sans-v9-latin-regular.woff

561 ms

roboto-slab-v7-latin-regular.woff

roboto-slab-v7-latin-regular.woff

490 ms

fa-solid-900.woff

fa-solid-900.woff

582 ms

fa-regular-400.woff

fa-regular-400.woff

491 ms

fontawesome-webfont.woff

fontawesome-webfont.woff

751 ms

Accessibility Review

lisum.berlin-brandenburg.de accessibility score

98

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.

Best Practices

lisum.berlin-brandenburg.de best practices score

75

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

High

Serves images with low resolution

General

Impact

Issue

Low

Detected JavaScript libraries

High

Page has valid source maps

SEO Factors

lisum.berlin-brandenburg.de SEO score

100

Search Engine Optimization Advices

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

    DE

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Lisum.berlin-brandenburg.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 Lisum.berlin-brandenburg.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

lisum.berlin-brandenburg.de

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