Report Summary

  • 89

    Performance

    Renders faster than
    90% of other websites

  • 63

    Accessibility

    Visual factors better than
    that of 28% of websites

  • 75

    Best Practices

    More advanced features
    available than in
    36% of websites

  • 67

    SEO

    Google-friendlier than
    25% of websites

luise-berlin.de

Berlin von A-Z, Lexikon zur Stadt-Entwicklung, Chronik und Gegenwart— www.berlingeschichte.de

Page Load Speed

1.1 sec in total

First Response

57 ms

Resources Loaded

826 ms

Page Rendered

186 ms

luise-berlin.de screenshot

About Website

Click here to check amazing Luise Berlin content for Germany. Otherwise, check out these important facts you probably never knew about luise-berlin.de

Berlin-Lexikon: Stadtentwicklung, Personen, Schauplätze, Zeitgeschehen, Literaturkritik, historische Fakten, Erkundungen - von den Anfängen bis zur Gegenwart

Visit luise-berlin.de

Key Findings

We analyzed Luise-berlin.de page load time and found that the first response time was 57 ms and then it took 1 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 20% of websites can load faster.

Performance Metrics

luise-berlin.de performance score

89

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value1.7 s

93/100

10%

LCP (Largest Contentful Paint)

Value2.1 s

96/100

25%

SI (Speed Index)

Value2.5 s

98/100

10%

TBT (Total Blocking Time)

Value0 ms

100/100

30%

CLS (Cumulative Layout Shift)

Value0.312

37/100

15%

TTI (Time to Interactive)

Value1.7 s

100/100

10%

Network Requests Diagram

luise-berlin.de

57 ms

www.luise-berlin.de

131 ms

200x200.html

348 ms

petschaft.gif

28 ms

pxl.gif

20 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 79% of them (11 requests) were addressed to the original Luise-berlin.de, 14% (2 requests) were made to Google-analytics.com and 7% (1 request) were made to Berlin.kauperts.de. The less responsive or slowest element that took the longest time to load (348 ms) relates to the external source Berlin.kauperts.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 11.4 kB (34%)

Content Size

33.4 kB

After Optimization

22.0 kB

In fact, the total size of Luise-berlin.de main page is 33.4 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. Only 10% of websites need less resources to load. Javascripts take 17.2 kB which makes up the majority of the site volume.

HTML Optimization

-70%

Potential reduce by 10.9 kB

  • Original 15.6 kB
  • After minification 14.6 kB
  • After compression 4.7 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 10.9 kB or 70% of the original size.

JavaScript Optimization

-0%

Potential reduce by 34 B

  • Original 17.2 kB
  • After minification 17.2 kB
  • After compression 17.1 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. This website has mostly compressed JavaScripts.

CSS Optimization

-63%

Potential reduce by 414 B

  • Original 660 B
  • After minification 603 B
  • After compression 246 B

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. Luise-berlin.de needs all CSS files to be minified and compressed as it can save up to 414 B or 63% of the original size.

Requests Breakdown

We found no issues to fix!

Requests Now

11

After Optimization

11

The browser has sent 11 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Luise Berlin. According to our analytics all requests are already optimized.

Accessibility Review

luise-berlin.de accessibility score

63

Accessibility Issues

Navigation

These are opportunities to improve keyboard navigation in your application.

Impact

Issue

High

Heading elements are not in a sequentially-descending order

Internationalization and localization

These are opportunities to improve the interpretation of your content by users in different locales.

Impact

Issue

High

<html> element does not have a [lang] attribute

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

Image elements do not have [alt] attributes

Best Practices

luise-berlin.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

Serves images with low resolution

SEO Factors

luise-berlin.de SEO score

67

Search Engine Optimization Advices

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

    N/A

  • Encoding

    ISO-8859-1

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Luise-berlin.de can be misinterpreted by Google and other search engines. Our service has detected that German is used on the page, and neither this language nor any other was claimed in <html> or <meta> tags. Our system also found out that Luise-berlin.de main page’s claimed encoding is iso-8859-1. Changing it to UTF-8 can be a good choice, as this format is commonly used for encoding all over the web and thus their visitors won’t have any troubles with symbol transcription or reading.

Social Sharing Optimization

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