Report Summary

  • 55

    Performance

    Renders faster than
    72% of other websites

  • 91

    Accessibility

    Visual factors better than
    that of 76% of websites

  • 92

    Best Practices

    More advanced features
    available than in
    80% of websites

  • 69

    SEO

    Google-friendlier than
    28% of websites

jetztlesen.de

Penguin: Alle Bücher, Hörbücher & eBooks aus über 40 Verlagen

Page Load Speed

2 sec in total

First Response

394 ms

Resources Loaded

1.5 sec

Page Rendered

94 ms

jetztlesen.de screenshot

About Website

Welcome to jetztlesen.de homepage info - get ready to check Jetztlesen best content for Germany right away, or after learning these important things about jetztlesen.de

Entdecken Sie die Welt der Bücher mit Penguin. Mit über 40 Verlagen unter einem Dach informieren wir Sie über Neuerscheinungen, Autor*innen und Events.

Visit jetztlesen.de

Key Findings

We analyzed Jetztlesen.de page load time and found that the first response time was 394 ms and then it took 1.6 sec to load all DOM resources and completely render a web page. This is quite a good result, as only 35% of websites can load faster.

Performance Metrics

jetztlesen.de performance score

55

Measured Metrics

name

value

score

weighting

FCP (First Contentful Paint)

Value5.0 s

9/100

10%

LCP (Largest Contentful Paint)

Value5.0 s

27/100

25%

SI (Speed Index)

Value5.0 s

63/100

10%

TBT (Total Blocking Time)

Value430 ms

65/100

30%

CLS (Cumulative Layout Shift)

Value0

100/100

15%

TTI (Time to Interactive)

Value5.6 s

70/100

10%

Network Requests Diagram

jetztlesen.de

394 ms

www.penguin.de

630 ms

api.js

32 ms

captcha.css

377 ms

recaptcha__en.js

26 ms

Our browser made a total of 14 requests to load all elements on the main page. We found that 7% of them (1 request) were addressed to the original Jetztlesen.de, 36% (5 requests) were made to Gstatic.com and 21% (3 requests) were made to Google.com. The less responsive or slowest element that took the longest time to load (630 ms) relates to the external source Penguin.de.

Page Optimization Overview & Recommendations

Page size can be reduced by 12.1 kB (5%)

Content Size

262.4 kB

After Optimization

250.2 kB

In fact, the total size of Jetztlesen.de main page is 262.4 kB. This result falls within a vast category (top 1 000 000) of heavyweight, probably not optimized, and thus slow loading web pages. Only 5% of websites need less resources to load. Javascripts take 211.6 kB which makes up the majority of the site volume.

HTML Optimization

-61%

Potential reduce by 10.3 kB

  • Original 17.0 kB
  • After minification 17.0 kB
  • After compression 6.7 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 10.3 kB or 61% of the original size.

Image Optimization

-2%

Potential reduce by 557 B

  • Original 32.4 kB
  • After minification 31.8 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. Jetztlesen images are well optimized though.

JavaScript Optimization

-1%

Potential reduce by 1.2 kB

  • Original 211.6 kB
  • After minification 211.6 kB
  • After compression 210.4 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

-1%

Potential reduce by 15 B

  • Original 1.3 kB
  • After minification 1.3 kB
  • After compression 1.3 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. Jetztlesen.de has all CSS files already compressed.

Requests Breakdown

We found no issues to fix!

Requests Now

10

After Optimization

10

The browser has sent 10 CSS, Javascripts, AJAX and image requests in order to completely render the main page of Jetztlesen. According to our analytics all requests are already optimized.

Accessibility Review

jetztlesen.de accessibility score

91

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.

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

Best Practices

jetztlesen.de best practices score

92

Areas of Improvement

Trust and Safety

Impact

Issue

High

Does not use HTTPS

Low

Ensure CSP is effective against XSS attacks

SEO Factors

jetztlesen.de SEO score

69

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

Links do not have descriptive text

Crawling and Indexing

To appear in search results, crawlers need access to your app.

Impact

Issue

High

robots.txt is not valid

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 doesn't use legible font sizes

Language and Encoding

  • Language Detected

    DE

  • Language Claimed

    N/A

  • Encoding

    UTF-8

Language claimed in HTML meta tag should match the language actually used on the web page. Otherwise Jetztlesen.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 Jetztlesen.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

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